CN109686909A - A kind of high power lithium ion cell and preparation method thereof for middle low-speed cars - Google Patents
A kind of high power lithium ion cell and preparation method thereof for middle low-speed cars Download PDFInfo
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- CN109686909A CN109686909A CN201811612600.8A CN201811612600A CN109686909A CN 109686909 A CN109686909 A CN 109686909A CN 201811612600 A CN201811612600 A CN 201811612600A CN 109686909 A CN109686909 A CN 109686909A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/431—Inorganic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a kind of high power lithium ion cells for middle low-speed cars, including positive plate, diaphragm and negative electrode tab, the positive plate is made of cobalt acid lithium, PVDF-761A, conductive agent SP, NMP, isopropanol and additive A P, the diaphragm is made of polyethylene, polypropylene, plasticizer, glass fibre, polyimides and polyamide, and the negative electrode tab is made of CMC, viscous glutinous agent, KMD and conductive agent.In actual use, positive plate can provide high-power electric energy, negative electrode tab possesses high-energy density ingredient, so that entire lithium battery is after multiple charge and discharge cycles, the fall off rate of its charge and discharge capacity and efficiency for charge-discharge is all eased, and further extends service life of lithium ion battery during utilization；It is added with glass fibre, polyimides and polyamide in the ingredient of diaphragm, further improves the thermal stability of lithium ion battery separator, makes lithium ion battery during use more efficiently and safe.
Description
Technical field
The present invention relates to new energy manufacturing technology field, specially a kind of high-power lithium ion electricity for middle low-speed cars
Pond and preparation method thereof.
Background technique
With the development of world economy, International Petroleum Price fluctuated acutely in recent years, in addition the expection of the following petroleum resources
It reduces, petroleum has become the bottleneck of development of world economy.It is energy-saving, it develops a circular economy, taps a new source of energy and have become
The important direction of world today's energy strategy.New-energy automobile is since it is high with fuel availability, environmental pollution is small, noise is low
The advantages that, become the new developing direction of automobile industry.
One of which of the lithium ion battery as new energy is widely used in middle low-speed cars, vista car, electronic
The fields such as bicycle, electric tool, digital product, solar energy, mobile base station energy storage, lithium ion battery are a kind of secondary cells
(rechargeable battery), it relies primarily on lithium ion, and movement carrys out work between a positive electrode and a negative electrode.In charge and discharge process, Li+ is two
Insertion and deintercalation back and forth between a electrode: when charging, Li+ is embedded in cathode from positive deintercalation, by electrolyte, and cathode is in rich lithium
State；It is then opposite when electric discharge.
Lithium ion battery used in middle low-speed cars currently on the market, with lithium ion battery charge and discharge cycles number
Increase, charge and discharge capacity and efficiency for charge-discharge are all significantly reducing, so that the normal service life of lithium ion battery
Also constantly shortening, in addition, diaphragm is one of interior layer assembly crucial in lithium ion battery structure, on the one hand diaphragm plays point
Every positive and negative plate, the effect of short circuit is prevented, on the other hand plays the role of allowing lithium ion by forming closed circuit, determine
Interfacial structure, internal resistance of battery etc. directly affect the characteristics such as capacity, circulation and the security performance of battery, existing septate heat
Stability is poor, reason depend on prepare ingredient used in diaphragm, how to improve lithium ion battery service life and every
The thermal stability of film becomes our urgent problems to be solved instantly, for this purpose, we have proposed a kind of height for middle low-speed cars
Power lithium ion cells and preparation method thereof.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of high power for middle low-speed cars
Lithium ion battery and preparation method thereof, how can effectively solve to propose in background technique improves the use longevity of lithium ion battery
The problem of thermal stability of life and diaphragm.
To achieve the above object, the invention provides the following technical scheme: a kind of high-power lithium for middle low-speed cars from
Sub- battery, including battery case, positive terminal, negative pole end, positive insulation board, negative insulation plate, positive plate, diaphragm, negative electrode tab and
Safety valve is fixedly installed the positive terminal of cylinder body shape, and the bottom fixed setting of battery case at the top of the battery case
There is the negative pole end for constituting closed circuit, the top and bottom end inside the battery case are respectively arranged with and are playing insulating effect just
Pole insulation board and negative insulation plate are provided with the anode to store electric energy between the anode insulation board and negative insulation plate
Piece, diaphragm and negative electrode tab, the positive plate and negative electrode tab are placed in the both sides external of diaphragm, the inner tip of the battery case
Setting is improved the safety valve of lithium battery security performance at the top position of positive insulation board；
The positive plate be made of cobalt acid lithium, PVDF-761A, conductive agent SP, NMP, isopropanol and additive A P, specifically,
It is prepared by the component of following parts by weight: cobalt acid lithium: 90-95 parts, PVDF-761A:2-4 parts, SP:1-4 parts of conductive agent, NMP:
0.5-1.5 parts, isopropanol: 0.5-1 parts and additive A P:0.5-1 parts；
The diaphragm be made of polyethylene, polypropylene, plasticizer, glass fibre, polyimides and polyamide, specifically, by
The component of following parts by weight is prepared: polyethylene: 20-35 parts, polypropylene: 20-35 parts, plasticizer: 10-15 parts, glass fibers
Dimension: 5-10 parts, polyimides: 3-5 parts and polyamide: 3-5 parts；
The negative electrode tab be made of CMC, viscous glutinous agent, KMD and conductive agent, specifically, by the component preparation of following parts by weight and
: CMC:1-2 parts, viscous glutinous agent: 2-3 parts, KMD:93-95 parts and SP:1-4 parts of conductive agent.
As a preferred technical solution of the present invention, it is one that the outside of the positive terminal, which is fixedly installed with battery case,
The positive battery cap of body is provided with charging connection hole on the positive battery cap, and charging connection hole is opposite with the input terminal of positive terminal
It answers.
As a preferred technical solution of the present invention, the positive plate is prepared by the component of following parts by weight:
Cobalt acid lithium: 95 parts, PVDF-761A:4 parts, SP:4 parts of conductive agent, NMP:1.5 parts, isopropanol: 1 part and additive A P:1 parts；
The diaphragm is prepared by the component of following parts by weight: polyethylene: 35 parts, polypropylene: 35 parts, plasticizer: 15 parts,
Glass fibre: 10 parts, polyimides: 5 parts and polyamide: 5 parts；
The negative electrode tab is prepared by the component of following parts by weight: CMC:2 parts, viscous glutinous agent: 3 parts, KMD:95 parts and conduction
SP:4 parts of agent.
As a preferred technical solution of the present invention, the positive plate is prepared by the component of following parts by weight:
Cobalt acid lithium: 90 parts, PVDF-761A:2 parts, SP:1 parts of conductive agent, NMP:0.5 parts, isopropanol: 0.5 part and additive A P:0.5
Part；
The diaphragm is prepared by the component of following parts by weight: polyethylene: 20 parts, polypropylene: 20 parts, plasticizer: 10 parts,
Glass fibre: 5 parts, polyimides: 3 parts and polyamide: 3 parts；
The negative electrode tab is prepared by the component of following parts by weight: CMC:1 parts, viscous glutinous agent: 2 parts, KMD:93 parts and conduction
SP:1 parts of agent.
As a preferred technical solution of the present invention, the positive plate is prepared by the component of following parts by weight:
Cobalt acid lithium: 93 parts, PVDF-761A:3 parts, SP:3 parts of conductive agent, NMP:1 parts, isopropanol: 0.8 part and additive A P:0.8 parts；
The diaphragm is prepared by the component of following parts by weight: polyethylene: 30 parts, polypropylene: 30 parts, plasticizer: 13 parts,
Glass fibre: 8 parts, polyimides: 4 parts and polyamide: 4 parts；
The negative electrode tab is prepared by the component of following parts by weight: CMC:1.5 parts, viscous glutinous agent: 2.5 parts, KMD:94 parts and
SP:2 parts of conductive agent.
The above-mentioned high power lithium ion cell for middle low-speed cars, preparation method include the following steps:
S101: raw material weighs: the component materials for preparing positive plate, diaphragm and negative electrode tab are weighed according to above-mentioned parts by weight；
S102: positive and negative electrode and diaphragm slurry are prepared: by the component materials of the positive plate after weighing, diaphragm and negative electrode tab, respectively
It carries out high speed in investment to three blenders to be sufficiently stirred, the revolving speed of three blenders is controlled in 400-450r/min, stirring
Incorporation time control is controlled in 10-20min, whipping temp at 35-42 DEG C.Positive electrode, diaphragm material and negative electrode material
Slurry after evenly mixing, takes out and imports in mixer, temperature is down to room temperature, gives over to spare；
S103: coating process: above-mentioned uniformly mixed positive and negative electrode slurry is put into respectively into positive and negative electrode coating machine material, coating
The painting paddle wheel of machine is evenly distributed in positive and negative electrode slurry on painting paddle wheel by knife edge clearance, is coated in transmission by roller coating slurry
On the base-material of driving wheel, positive and negative electrode slurry is uniformly being coated on respective collector respectively respectively according to the size of setting, is being applied
After the completion of covering, by cutting equipment carry out slitting treatment, carry out drying and processing after cutting, finally using winder respectively to just,
Negative electrode tab carries out winding processing；
S104: it prepares diaphragm slab: above-mentioned uniformly mixed diaphragm material being put into extrusion shaping machine, by specifically squeezing
Molding die out, squeezing out has the perforated slab of certain thickness band；
S105: biaxial tension: the slab transposing of above-mentioned extrusion molding is carried out at vertical and horizontal stretching into biaxial orientation stretching machine
Reason；
S106: extraction cleaning: the slab after above-mentioned stretching is placed in abstraction pool, is added 20-25 parts of extractant, when extraction
Between control after the completion of 10-15min, extraction, be transferred in service sink, swing cleaning, wash away slab extractant remained on surface,
Again after drying, splitting winding is carried out according to feature size, obtains finished product diaphragm, gives over to spare；
S107: battery core lap wound: positive and negative plate obtained above and diaphragm are wound into battery core by sutomatic winding machine, rolled up
Around when, diaphragm is added in the intermediate of positive and negative plate, and diaphragm is centrally located, after the completion of winding, sticks gummed paper in the bottom of battery core
And set insulating trip is fixed, and is finally fitted into battery case and is formed electrode, is sent into baking machine and is toasted；
S108: it injection electrolyte: is injected the electrolyte into battery core obtained above using automatic filling machine；
S109: battery seal, cleaning, deck and mark: battery obtained above successively seals it, is cleaned, deck
It is handled with mark, obtains semi-finished product lithium battery；
S1010: battery detecting: above-mentioned semi-finished product lithium battery is sent into detection workshop, is carried out aging to lithium battery respectively, is changed
At, partial volume, sorting and performance sampling observation processing；Inspect qualified lithium battery by random samples, the production preparation of lithium battery can be completed in storage.
As a preferred technical solution of the present invention, the process of fluid injection in the step S108, automatic filling machine and
Battery core is in the drying box of totally-enclosed.
Compared with prior art, the beneficial effects of the present invention are: the lithium ion battery, in actual use, positive plate
It can provide high-power electric energy, negative electrode tab possesses high-energy density ingredient, so that entire lithium battery is followed in multiple charge and discharge
After ring, the fall off rate data of charge and discharge capacity and efficiency for charge-discharge are all eased, thus further extend lithium from
Service life of sub- battery during utilization, in addition, the diaphragm of the lithium ion battery, in ingredient added with glass fibre,
Polyimides and polyamide further improve the thermal stability of lithium ion battery separator, and lithium ion battery is allowed to use
It is in the process more efficiently and safe.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: 1, battery case；2, positive terminal；3, negative pole end；4, positive insulation board；5, negative insulation plate；6, positive plate；
7, diaphragm；8, negative electrode tab；9, safety valve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of high power lithium ion cell for middle low-speed cars, packet
Include battery case 1, positive terminal 2, negative pole end 3, positive insulation board 4, negative insulation plate 5, positive plate 6, diaphragm 7, negative electrode tab 8 and peace
Full valve 9, the top of battery case 1 is fixedly installed the positive terminal 2 of cylinder body shape, and the bottom of battery case 1 is fixedly installed
The negative pole end 3 of closed circuit is constituted, the top and bottom end inside battery case 1, which are respectively arranged with, plays the positive exhausted of insulating effect
Listrium 4 and negative insulation plate 5, be provided between positive insulation board 4 and negative insulation plate 5 to store electric energy positive plate 6, every
Film 7 and negative electrode tab 8, positive plate 6 and negative electrode tab 8 are placed in the both sides external of diaphragm 7, and the inner tip of battery case 1 is located at just
Setting is improved the safety valve 9 of lithium battery security performance at the top position of pole insulation board 4；
Positive plate 6 is made of cobalt acid lithium, PVDF-761A, conductive agent SP, NMP, isopropanol and additive A P, specifically, by such as
The component of lower parts by weight is prepared: cobalt acid lithium: 90-95 parts, PVDF-761A:2-4 parts, SP:1-4 parts of conductive agent, NMP:0.5-
1.5 parts, isopropanol: 0.5-1 parts and additive A P:0.5-1 parts；
Diaphragm 7 is made of polyethylene, polypropylene, plasticizer, glass fibre, polyimides and polyamide, specifically, by as follows
The component of parts by weight is prepared: polyethylene: 20-35 parts, polypropylene: 20-35 parts, plasticizer: 10-15 parts, glass fibre: 5-
10 parts, polyimides: 3-5 parts and polyamide: 3-5 parts；
Negative electrode tab 8 is made of CMC, viscous glutinous agent, KMD and conductive agent, specifically, being prepared by the component of following parts by weight:
CMC:1-2 parts, viscous glutinous agent: 2-3 parts, KMD:93-95 parts and SP:1-4 parts of conductive agent.
The outside of positive terminal 2 is fixedly installed the positive battery cap being integrated with battery case 1, sets on the positive battery cap
It is equipped with charging connection hole, charging connection hole is corresponding with the input terminal of positive terminal 2.
In the present embodiment, it is preferred that this is used for the high power lithium ion cell of middle low-speed cars, and preparation method includes such as
Lower step:
S101: raw material weighs: the component materials for preparing positive plate, diaphragm and negative electrode tab are weighed according to above-mentioned parts by weight；
S102: positive and negative electrode and diaphragm slurry are prepared: by the component materials of the positive plate after weighing, diaphragm and negative electrode tab, respectively
It carries out high speed in investment to three blenders to be sufficiently stirred, the revolving speed of three blenders is controlled in 400-450r/min, stirring
Incorporation time control is controlled in 10-20min, whipping temp at 35-42 DEG C.Positive electrode, diaphragm material and negative electrode material
Slurry after evenly mixing, takes out and imports in mixer, temperature is down to room temperature, gives over to spare；
S103: coating process: above-mentioned uniformly mixed positive and negative electrode slurry is put into respectively into positive and negative electrode coating machine material, coating
The painting paddle wheel of machine is evenly distributed in positive and negative electrode slurry on painting paddle wheel by knife edge clearance, is coated in transmission by roller coating slurry
On the base-material of driving wheel, positive and negative electrode slurry is uniformly being coated on respective collector respectively respectively according to the size of setting, is being applied
After the completion of covering, by cutting equipment carry out slitting treatment, carry out drying and processing after cutting, finally using winder respectively to just,
Negative electrode tab carries out winding processing；
S104: it prepares diaphragm slab: above-mentioned uniformly mixed diaphragm material being put into extrusion shaping machine, by specifically squeezing
Molding die out, squeezing out has the perforated slab of certain thickness band；
S105: biaxial tension: the slab transposing of above-mentioned extrusion molding is carried out at vertical and horizontal stretching into biaxial orientation stretching machine
Reason；
S106: extraction cleaning: the slab after above-mentioned stretching is placed in abstraction pool, is added 20-25 parts of extractant, when extraction
Between control after the completion of 10-15min, extraction, be transferred in service sink, swing cleaning, wash away slab extractant remained on surface,
Again after drying, splitting winding is carried out according to feature size, obtains finished product diaphragm, gives over to spare；
S107: battery core lap wound: positive and negative plate obtained above and diaphragm are wound into battery core by sutomatic winding machine, rolled up
Around when, diaphragm is added in the intermediate of positive and negative plate, and diaphragm is centrally located, after the completion of winding, sticks gummed paper in the bottom of battery core
And set insulating trip is fixed, and is finally fitted into battery case and is formed electrode, is sent into baking machine and is toasted；
S108: it injection electrolyte: is injected the electrolyte into battery core obtained above using automatic filling machine；
S109: battery seal, cleaning, deck and mark: battery obtained above successively seals it, is cleaned, deck
It is handled with mark, obtains semi-finished product lithium battery；
S1010: battery detecting: above-mentioned semi-finished product lithium battery is sent into detection workshop, is carried out aging to lithium battery respectively, is changed
At, partial volume, sorting and performance sampling observation processing；Inspect qualified lithium battery by random samples, the production preparation of lithium battery can be completed in storage.
In the present embodiment, it is preferred that the process of fluid injection in step S108, automatic filling machine and battery core are in complete close
In the drying box closed.
Embodiment 2:
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of high power lithium ion cell for middle low-speed cars, packet
Include battery case 1, positive terminal 2, negative pole end 3, positive insulation board 4, negative insulation plate 5, positive plate 6, diaphragm 7, negative electrode tab 8 and peace
Full valve 9, the top of battery case 1 is fixedly installed the positive terminal 2 of cylinder body shape, and the bottom of battery case 1 is fixedly installed
The negative pole end 3 of closed circuit is constituted, the top and bottom end inside battery case 1, which are respectively arranged with, plays the positive exhausted of insulating effect
Listrium 4 and negative insulation plate 5, be provided between positive insulation board 4 and negative insulation plate 5 to store electric energy positive plate 6, every
Film 7 and negative electrode tab 8, positive plate 6 and negative electrode tab 8 are placed in the both sides external of diaphragm 7, and the inner tip of battery case 1 is located at just
Setting is improved the safety valve 9 of lithium battery security performance at the top position of pole insulation board 4；
Positive plate 6 is prepared by the component of following parts by weight: cobalt acid lithium: 95 parts, PVDF-761A:4 parts, conductive agent SP:4
Part, NMP:1.5 parts, isopropanol: 1 part and additive A P:1 parts；
Diaphragm 7 is prepared by the component of following parts by weight: polyethylene: 35 parts, polypropylene: 35 parts, plasticizer: 15 parts, glass
Glass fiber: 10 parts, polyimides: 5 parts and polyamide: 5 parts；
Negative electrode tab 8 is prepared by the component of following parts by weight: CMC:2 parts, viscous glutinous agent: 3 parts, KMD:95 parts and conductive agent
SP:4 parts.
The outside of positive terminal 2 is fixedly installed the positive battery cap being integrated with battery case 1, sets on the positive battery cap
It is equipped with charging connection hole, charging connection hole is corresponding with the input terminal of positive terminal 2.
In the present embodiment, it is preferred that this is used for the high power lithium ion cell of middle low-speed cars, and preparation method includes such as
Lower step:
S101: raw material weighs: the component materials for preparing positive plate, diaphragm and negative electrode tab are weighed according to above-mentioned parts by weight；
S102: positive and negative electrode and diaphragm slurry are prepared: by the component materials of the positive plate after weighing, diaphragm and negative electrode tab, respectively
It carries out high speed in investment to three blenders to be sufficiently stirred, the revolving speed of three blenders is controlled in 450r/min, is stirred
Time control is controlled in 20min, whipping temp at 42 DEG C.The slurry of positive electrode, diaphragm material and negative electrode material uniformly mixes
After conjunction, takes out and import in mixer, temperature is down to room temperature, gives over to spare；
S103: coating process: above-mentioned uniformly mixed positive and negative electrode slurry is put into respectively into positive and negative electrode coating machine material, coating
The painting paddle wheel of machine is evenly distributed in positive and negative electrode slurry on painting paddle wheel by knife edge clearance, is coated in transmission by roller coating slurry
On the base-material of driving wheel, positive and negative electrode slurry is uniformly being coated on respective collector respectively respectively according to the size of setting, is being applied
After the completion of covering, by cutting equipment carry out slitting treatment, carry out drying and processing after cutting, finally using winder respectively to just,
Negative electrode tab carries out winding processing；
S104: it prepares diaphragm slab: above-mentioned uniformly mixed diaphragm material being put into extrusion shaping machine, by specifically squeezing
Molding die out, squeezing out has the perforated slab of certain thickness band；
S105: biaxial tension: the slab transposing of above-mentioned extrusion molding is carried out at vertical and horizontal stretching into biaxial orientation stretching machine
Reason；
S106: extraction cleaning: the slab after above-mentioned stretching is placed in abstraction pool, and 25 parts of extractant, extraction time is added
Control is transferred in service sink after the completion of 15min, extraction, is swung cleaning, is washed away slab extractant remained on surface, then pass through
After drying, splitting winding is carried out according to feature size, finished product diaphragm is obtained, gives over to spare；
S107: battery core lap wound: positive and negative plate obtained above and diaphragm are wound into battery core by sutomatic winding machine, rolled up
Around when, diaphragm is added in the intermediate of positive and negative plate, and diaphragm is centrally located, after the completion of winding, sticks gummed paper in the bottom of battery core
And set insulating trip is fixed, and is finally fitted into battery case and is formed electrode, is sent into baking machine and is toasted；
S108: it injection electrolyte: is injected the electrolyte into battery core obtained above using automatic filling machine；
S109: battery seal, cleaning, deck and mark: battery obtained above successively seals it, is cleaned, deck
It is handled with mark, obtains semi-finished product lithium battery；
S1010: battery detecting: above-mentioned semi-finished product lithium battery is sent into detection workshop, is carried out aging to lithium battery respectively, is changed
At, partial volume, sorting and performance sampling observation processing；Inspect qualified lithium battery by random samples, the production preparation of lithium battery can be completed in storage.
In the present embodiment, it is preferred that the process of fluid injection in step S108, automatic filling machine and battery core are in complete close
In the drying box closed.
Embodiment 3:
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of high power lithium ion cell for middle low-speed cars, packet
Include battery case 1, positive terminal 2, negative pole end 3, positive insulation board 4, negative insulation plate 5, positive plate 6, diaphragm 7, negative electrode tab 8 and peace
Full valve 9, the top of battery case 1 is fixedly installed the positive terminal 2 of cylinder body shape, and the bottom of battery case 1 is fixedly installed
The negative pole end 3 of closed circuit is constituted, the top and bottom end inside battery case 1, which are respectively arranged with, plays the positive exhausted of insulating effect
Listrium 4 and negative insulation plate 5, be provided between positive insulation board 4 and negative insulation plate 5 to store electric energy positive plate 6, every
Film 7 and negative electrode tab 8, positive plate 6 and negative electrode tab 8 are placed in the both sides external of diaphragm 7, and the inner tip of battery case 1 is located at just
Setting is improved the safety valve 9 of lithium battery security performance at the top position of pole insulation board 4；
Positive plate 6 is prepared by the component of following parts by weight: cobalt acid lithium: 90 parts, PVDF-761A:2 parts, conductive agent SP:1
Part, NMP:0.5 parts, isopropanol: 0.5 part and additive A P:0.5 parts；
Diaphragm 7 is prepared by the component of following parts by weight: polyethylene: 20 parts, polypropylene: 20 parts, plasticizer: 10 parts, glass
Glass fiber: 5 parts, polyimides: 3 parts and polyamide: 3 parts；
Negative electrode tab 8 is prepared by the component of following parts by weight: CMC:1 parts, viscous glutinous agent: 2 parts, KMD:93 parts and conductive agent
SP:1 parts.
The outside of positive terminal 2 is fixedly installed the positive battery cap being integrated with battery case 1, sets on the positive battery cap
It is equipped with charging connection hole, charging connection hole is corresponding with the input terminal of positive terminal 2.
In the present embodiment, it is preferred that this is used for the high power lithium ion cell of middle low-speed cars, and preparation method includes such as
Lower step:
S101: raw material weighs: the component materials for preparing positive plate, diaphragm and negative electrode tab are weighed according to above-mentioned parts by weight；
S102: positive and negative electrode and diaphragm slurry are prepared: by the component materials of the positive plate after weighing, diaphragm and negative electrode tab, respectively
It carries out high speed in investment to three blenders to be sufficiently stirred, the revolving speed of three blenders is controlled in 400r/min, is stirred
Time control is controlled in 10min, whipping temp at 35 DEG C.The slurry of positive electrode, diaphragm material and negative electrode material uniformly mixes
After conjunction, takes out and import in mixer, temperature is down to room temperature, gives over to spare；
S103: coating process: above-mentioned uniformly mixed positive and negative electrode slurry is put into respectively into positive and negative electrode coating machine material, coating
The painting paddle wheel of machine is evenly distributed in positive and negative electrode slurry on painting paddle wheel by knife edge clearance, is coated in transmission by roller coating slurry
On the base-material of driving wheel, positive and negative electrode slurry is uniformly being coated on respective collector respectively respectively according to the size of setting, is being applied
After the completion of covering, by cutting equipment carry out slitting treatment, carry out drying and processing after cutting, finally using winder respectively to just,
Negative electrode tab carries out winding processing；
S104: it prepares diaphragm slab: above-mentioned uniformly mixed diaphragm material being put into extrusion shaping machine, by specifically squeezing
Molding die out, squeezing out has the perforated slab of certain thickness band；
S105: biaxial tension: the slab transposing of above-mentioned extrusion molding is carried out at vertical and horizontal stretching into biaxial orientation stretching machine
Reason；
S106: extraction cleaning: the slab after above-mentioned stretching is placed in abstraction pool, and 20 parts of extractant, extraction time is added
Control is transferred in service sink after the completion of 10min, extraction, is swung cleaning, is washed away slab extractant remained on surface, then pass through
After drying, splitting winding is carried out according to feature size, finished product diaphragm is obtained, gives over to spare；
S107: battery core lap wound: positive and negative plate obtained above and diaphragm are wound into battery core by sutomatic winding machine, rolled up
Around when, diaphragm is added in the intermediate of positive and negative plate, and diaphragm is centrally located, after the completion of winding, sticks gummed paper in the bottom of battery core
And set insulating trip is fixed, and is finally fitted into battery case and is formed electrode, is sent into baking machine and is toasted；
S108: it injection electrolyte: is injected the electrolyte into battery core obtained above using automatic filling machine；
S109: battery seal, cleaning, deck and mark: battery obtained above successively seals it, is cleaned, deck
It is handled with mark, obtains semi-finished product lithium battery；
S1010: battery detecting: above-mentioned semi-finished product lithium battery is sent into detection workshop, is carried out aging to lithium battery respectively, is changed
At, partial volume, sorting and performance sampling observation processing；Inspect qualified lithium battery by random samples, the production preparation of lithium battery can be completed in storage.
In the present embodiment, it is preferred that the process of fluid injection in step S108, automatic filling machine and battery core are in complete close
In the drying box closed.
Embodiment 4:
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of high power lithium ion cell for middle low-speed cars, packet
Include battery case 1, positive terminal 2, negative pole end 3, positive insulation board 4, negative insulation plate 5, positive plate 6, diaphragm 7, negative electrode tab 8 and peace
Full valve 9, the top of battery case 1 is fixedly installed the positive terminal 2 of cylinder body shape, and the bottom of battery case 1 is fixedly installed
The negative pole end 3 of closed circuit is constituted, the top and bottom end inside battery case 1, which are respectively arranged with, plays the positive exhausted of insulating effect
Listrium 4 and negative insulation plate 5, be provided between positive insulation board 4 and negative insulation plate 5 to store electric energy positive plate 6, every
Film 7 and negative electrode tab 8, positive plate 6 and negative electrode tab 8 are placed in the both sides external of diaphragm 7, and the inner tip of battery case 1 is located at just
Setting is improved the safety valve 9 of lithium battery security performance at the top position of pole insulation board 4；
Positive plate 6 is prepared by the component of following parts by weight: cobalt acid lithium: 93 parts, PVDF-761A:3 parts, conductive agent SP:3
Part, NMP:1 parts, isopropanol: 0.8 part and additive A P:0.8 parts；
Diaphragm 7 is prepared by the component of following parts by weight: polyethylene: 30 parts, polypropylene: 30 parts, plasticizer: 13 parts, glass
Glass fiber: 8 parts, polyimides: 4 parts and polyamide: 4 parts；
Negative electrode tab 8 is prepared by the component of following parts by weight: CMC:1.5 parts, viscous glutinous agent: 2.5 parts, KMD:94 parts and conduction
SP:2 parts of agent.
The outside of positive terminal 2 is fixedly installed the positive battery cap being integrated with battery case 1, sets on the positive battery cap
It is equipped with charging connection hole, charging connection hole is corresponding with the input terminal of positive terminal 2.
In the present embodiment, it is preferred that this is used for the high power lithium ion cell of middle low-speed cars, and preparation method includes such as
Lower step:
S101: raw material weighs: the component materials for preparing positive plate, diaphragm and negative electrode tab are weighed according to above-mentioned parts by weight；
S102: positive and negative electrode and diaphragm slurry are prepared: by the component materials of the positive plate after weighing, diaphragm and negative electrode tab, respectively
It carries out high speed in investment to three blenders to be sufficiently stirred, the revolving speed of three blenders is controlled in 430r/min, is stirred
Time control is controlled in 18min, whipping temp at 39 DEG C.The slurry of positive electrode, diaphragm material and negative electrode material uniformly mixes
After conjunction, takes out and import in mixer, temperature is down to room temperature, gives over to spare；
S103: coating process: above-mentioned uniformly mixed positive and negative electrode slurry is put into respectively into positive and negative electrode coating machine material, coating
The painting paddle wheel of machine is evenly distributed in positive and negative electrode slurry on painting paddle wheel by knife edge clearance, is coated in transmission by roller coating slurry
On the base-material of driving wheel, positive and negative electrode slurry is uniformly being coated on respective collector respectively respectively according to the size of setting, is being applied
After the completion of covering, by cutting equipment carry out slitting treatment, carry out drying and processing after cutting, finally using winder respectively to just,
Negative electrode tab carries out winding processing；
S104: it prepares diaphragm slab: above-mentioned uniformly mixed diaphragm material being put into extrusion shaping machine, by specifically squeezing
Molding die out, squeezing out has the perforated slab of certain thickness band；
S105: biaxial tension: the slab transposing of above-mentioned extrusion molding is carried out at vertical and horizontal stretching into biaxial orientation stretching machine
Reason；
S106: extraction cleaning: the slab after above-mentioned stretching is placed in abstraction pool, and 23 parts of extractant, extraction time is added
Control is transferred in service sink after the completion of 13min, extraction, is swung cleaning, is washed away slab extractant remained on surface, then pass through
After drying, splitting winding is carried out according to feature size, finished product diaphragm is obtained, gives over to spare；
S107: battery core lap wound: positive and negative plate obtained above and diaphragm are wound into battery core by sutomatic winding machine, rolled up
Around when, diaphragm is added in the intermediate of positive and negative plate, and diaphragm is centrally located, after the completion of winding, sticks gummed paper in the bottom of battery core
And set insulating trip is fixed, and is finally fitted into battery case and is formed electrode, is sent into baking machine and is toasted；
S108: it injection electrolyte: is injected the electrolyte into battery core obtained above using automatic filling machine；
S109: battery seal, cleaning, deck and mark: battery obtained above successively seals it, is cleaned, deck
It is handled with mark, obtains semi-finished product lithium battery；
S1010: battery detecting: above-mentioned semi-finished product lithium battery is sent into detection workshop, is carried out aging to lithium battery respectively, is changed
At, partial volume, sorting and performance sampling observation processing；Inspect qualified lithium battery by random samples, the production preparation of lithium battery can be completed in storage.
In the present embodiment, it is preferred that the process of fluid injection in step S108, automatic filling machine and battery core are in complete close
In the drying box closed.
For high power lithium ion cell made from mentioned component and method, at room temperature, to its charge and discharge capacity
And efficiency for charge-discharge is detected, detection data the result is as follows:
| Cycle-index | Charging capacity/Ah | Discharge capacity/Ah | Efficiency for charge-discharge % |
| 1 | 9.05 | 9.03 | 99.8 |
| 100 | 8.73 | 8.72 | 99.9 |
| 200 | 8.45 | 8.46 | 100.1 |
| 300 | 8.37 | 8.37 | 100.0 |
| 400 | 8.24 | 8.24 | 100.0 |
| 500 | 8.07 | 8.10 | 100.4 |
| 600 | 8.00 | 8.01 | 100.1 |
| 700 | 7.88 | 7.89 | 100.1 |
Available by upper table data: the high power lithium ion cell increases with charge and discharge cycles number, and charge and discharge are held
The fall off rate of amount and efficiency for charge-discharge is effectively alleviated, to extend the normal use longevity of lithium ion battery
Life.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of high power lithium ion cell for middle low-speed cars, including battery case, positive terminal, negative pole end, anode are absolutely
Listrium, negative insulation plate, positive plate, diaphragm, negative electrode tab and safety valve, it is characterised in that: the top of the battery case is fixed
It is provided with the positive terminal of cylinder body shape, and the bottom of battery case is fixedly installed the negative pole end for constituting closed circuit, the electricity
The top and bottom end of pond enclosure interior are respectively arranged with the positive insulation board and negative insulation plate for playing insulating effect, the anode
Be provided with the positive plate, diaphragm and negative electrode tab to store electric energy between insulation board and negative insulation plate, the positive plate and
Negative electrode tab is placed in the both sides external of diaphragm, and the inner tip of the battery case, which is located at the top position of positive insulation board, to be arranged
It is improved the safety valve of lithium battery security performance；
The positive plate be made of cobalt acid lithium, PVDF-761A, conductive agent SP, NMP, isopropanol and additive A P, specifically,
It is prepared by the component of following parts by weight: cobalt acid lithium: 90-95 parts, PVDF-761A:2-4 parts, SP:1-4 parts of conductive agent, NMP:
0.5-1.5 parts, isopropanol: 0.5-1 parts and additive A P:0.5-1 parts；
The diaphragm be made of polyethylene, polypropylene, plasticizer, glass fibre, polyimides and polyamide, specifically, by
The component of following parts by weight is prepared: polyethylene: 20-35 parts, polypropylene: 20-35 parts, plasticizer: 10-15 parts, glass fibers
Dimension: 5-10 parts, polyimides: 3-5 parts and polyamide: 3-5 parts；
The negative electrode tab be made of CMC, viscous glutinous agent, KMD and conductive agent, specifically, by the component preparation of following parts by weight and
: CMC:1-2 parts, viscous glutinous agent: 2-3 parts, KMD:93-95 parts and SP:1-4 parts of conductive agent.
2. a kind of high power lithium ion cell for middle low-speed cars according to claim 1, it is characterised in that: described
The outside of positive terminal is fixedly installed the positive battery cap being integrated with battery case, and charging is provided on the positive battery cap and is connected
Hole is connect, charging connection hole is corresponding with the input terminal of positive terminal.
3. a kind of high power lithium ion cell for middle low-speed cars according to claim 1, it is characterised in that:
The positive plate is prepared by the component of following parts by weight: cobalt acid lithium: 95 parts, PVDF-761A:4 parts, conductive agent
SP:4 parts, NMP:1.5 parts, isopropanol: 1 part and additive A P:1 parts；
The diaphragm is prepared by the component of following parts by weight: polyethylene: 35 parts, polypropylene: 35 parts, plasticizer: 15 parts,
Glass fibre: 10 parts, polyimides: 5 parts and polyamide: 5 parts；
The negative electrode tab is prepared by the component of following parts by weight: CMC:2 parts, viscous glutinous agent: 3 parts, KMD:95 parts and conduction
SP:4 parts of agent.
4. a kind of high power lithium ion cell for middle low-speed cars according to claim 1, it is characterised in that:
The positive plate is prepared by the component of following parts by weight: cobalt acid lithium: 90 parts, PVDF-761A:2 parts, conductive agent
SP:1 parts, NMP:0.5 parts, isopropanol: 0.5 part and additive A P:0.5 parts；
The diaphragm is prepared by the component of following parts by weight: polyethylene: 20 parts, polypropylene: 20 parts, plasticizer: 10 parts,
Glass fibre: 5 parts, polyimides: 3 parts and polyamide: 3 parts；
The negative electrode tab is prepared by the component of following parts by weight: CMC:1 parts, viscous glutinous agent: 2 parts, KMD:93 parts and conduction
SP:1 parts of agent.
5. a kind of high power lithium ion cell for middle low-speed cars according to claim 1, it is characterised in that:
The positive plate is prepared by the component of following parts by weight: cobalt acid lithium: 93 parts, PVDF-761A:3 parts, conductive agent
SP:3 parts, NMP:1 parts, isopropanol: 0.8 part and additive A P:0.8 parts；
The diaphragm is prepared by the component of following parts by weight: polyethylene: 30 parts, polypropylene: 30 parts, plasticizer: 13 parts,
Glass fibre: 8 parts, polyimides: 4 parts and polyamide: 4 parts；
The negative electrode tab is prepared by the component of following parts by weight: CMC:1.5 parts, viscous glutinous agent: 2.5 parts, KMD:94 parts and
SP:2 parts of conductive agent.
6. the high power lithium ion cell that any one is used for middle low-speed cars described in -5, feature exist according to claim 1
In: preparation method includes the following steps:
S101: raw material weighs: the component materials for preparing positive plate, diaphragm and negative electrode tab are weighed according to above-mentioned parts by weight；
S102: positive and negative electrode and diaphragm slurry are prepared: by the component materials of the positive plate after weighing, diaphragm and negative electrode tab, respectively
It carries out high speed in investment to three blenders to be sufficiently stirred, the revolving speed of three blenders is controlled in 400-450r/min, stirring
Incorporation time control is in 10-20min, and whipping temp control is at 35-42 DEG C, positive electrode, diaphragm material and negative electrode material
Slurry after evenly mixing, takes out and imports in mixer, temperature is down to room temperature, gives over to spare；
S103: coating process: above-mentioned uniformly mixed positive and negative electrode slurry is put into respectively into positive and negative electrode coating machine material, coating
The painting paddle wheel of machine is evenly distributed in positive and negative electrode slurry on painting paddle wheel by knife edge clearance, is coated in transmission by roller coating slurry
On the base-material of driving wheel, positive and negative electrode slurry is uniformly being coated on respective collector respectively respectively according to the size of setting, is being applied
After the completion of covering, by cutting equipment carry out slitting treatment, carry out drying and processing after cutting, finally using winder respectively to just,
Negative electrode tab carries out winding processing；
S104: it prepares diaphragm slab: above-mentioned uniformly mixed diaphragm material being put into extrusion shaping machine, by specifically squeezing
Molding die out, squeezing out has the perforated slab of certain thickness band；
S105: biaxial tension: the slab transposing of above-mentioned extrusion molding is carried out at vertical and horizontal stretching into biaxial orientation stretching machine
Reason；
S106: extraction cleaning: the slab after above-mentioned stretching is placed in abstraction pool, is added 20-25 parts of extractant, when extraction
Between control after the completion of 10-15min, extraction, be transferred in service sink, swing cleaning, wash away slab extractant remained on surface,
Again after drying, splitting winding is carried out according to feature size, obtains finished product diaphragm, gives over to spare；
S107: battery core lap wound: positive and negative plate obtained above and diaphragm are wound into battery core by sutomatic winding machine, rolled up
Around when, diaphragm is added in the intermediate of positive and negative plate, and diaphragm is centrally located, after the completion of winding, sticks gummed paper in the bottom of battery core
And set insulating trip is fixed, and is finally fitted into battery case and is formed electrode, is sent into baking machine and is toasted；
S108: it injection electrolyte: is injected the electrolyte into battery core obtained above using automatic filling machine；
S109: battery seal, cleaning, deck and mark: battery obtained above successively seals it, is cleaned, deck
It is handled with mark, obtains semi-finished product lithium battery；
S1010: battery detecting: above-mentioned semi-finished product lithium battery is sent into detection workshop, is carried out aging to lithium battery respectively, is changed
At, partial volume, sorting and performance sampling observation processing；Inspect qualified lithium battery by random samples, the production preparation of lithium battery can be completed in storage.
7. a kind of high power lithium ion cell and preparation method thereof for middle low-speed cars according to claim 6,
Be characterized in that: the process of fluid injection, automatic filling machine and battery core are in the drying box of totally-enclosed in the step S108.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018443A (en) * | 2019-05-31 | 2020-12-01 | 三星Sdi株式会社 | Additive, electrolyte for lithium secondary battery, and lithium secondary battery comprising the same |
| CN112864474A (en) * | 2021-01-05 | 2021-05-28 | 国联汽车动力电池研究院有限责任公司 | High-safety battery structure and battery |
| CN114639920A (en) * | 2022-05-18 | 2022-06-17 | 南通万亨新能源科技有限公司 | New energy automobile lithium battery diaphragm manufacturing process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103650204A (en) * | 2011-07-11 | 2014-03-19 | 加州理工学院 | Novel separators for electrochemical systems |
| CN104350631A (en) * | 2012-04-10 | 2015-02-11 | 加州理工学院 | Novel separators for electrochemical systems |
| US20150111085A1 (en) * | 2012-05-09 | 2015-04-23 | Kyushu University, National University Corporation | Separator for Electrochemical Element and Fabrication Method for Same |
| CN104577008A (en) * | 2013-10-18 | 2015-04-29 | 三星Sdi株式会社 | Battery separation layer comprising a quaternary ammonium fluorinated salt coating material |
| CN104852006A (en) * | 2015-04-13 | 2015-08-19 | 江苏华东锂电技术研究院有限公司 | Composite diaphragm and preparation method therefor, and lithium ion battery |
-
2018
- 2018-12-27 CN CN201811612600.8A patent/CN109686909A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103650204A (en) * | 2011-07-11 | 2014-03-19 | 加州理工学院 | Novel separators for electrochemical systems |
| CN104350631A (en) * | 2012-04-10 | 2015-02-11 | 加州理工学院 | Novel separators for electrochemical systems |
| US20150111085A1 (en) * | 2012-05-09 | 2015-04-23 | Kyushu University, National University Corporation | Separator for Electrochemical Element and Fabrication Method for Same |
| CN104577008A (en) * | 2013-10-18 | 2015-04-29 | 三星Sdi株式会社 | Battery separation layer comprising a quaternary ammonium fluorinated salt coating material |
| CN104852006A (en) * | 2015-04-13 | 2015-08-19 | 江苏华东锂电技术研究院有限公司 | Composite diaphragm and preparation method therefor, and lithium ion battery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018443A (en) * | 2019-05-31 | 2020-12-01 | 三星Sdi株式会社 | Additive, electrolyte for lithium secondary battery, and lithium secondary battery comprising the same |
| CN112864474A (en) * | 2021-01-05 | 2021-05-28 | 国联汽车动力电池研究院有限责任公司 | High-safety battery structure and battery |
| CN114639920A (en) * | 2022-05-18 | 2022-06-17 | 南通万亨新能源科技有限公司 | New energy automobile lithium battery diaphragm manufacturing process |
| CN114639920B (en) * | 2022-05-18 | 2022-07-19 | 南通万亨新能源科技有限公司 | New energy automobile lithium battery diaphragm manufacturing process |
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