CN110247018A - A kind of battery pole piece and preparation method thereof and secondary cell - Google Patents

A kind of battery pole piece and preparation method thereof and secondary cell Download PDF

Info

Publication number
CN110247018A
CN110247018A CN201910574445.3A CN201910574445A CN110247018A CN 110247018 A CN110247018 A CN 110247018A CN 201910574445 A CN201910574445 A CN 201910574445A CN 110247018 A CN110247018 A CN 110247018A
Authority
CN
China
Prior art keywords
battery
active material
pole piece
binder
conductive agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910574445.3A
Other languages
Chinese (zh)
Inventor
陈海初
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan University
Original Assignee
Foshan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan University filed Critical Foshan University
Priority to CN201910574445.3A priority Critical patent/CN110247018A/en
Publication of CN110247018A publication Critical patent/CN110247018A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01M10/24—Alkaline accumulators
    • H01M10/30—Nickel accumulators
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
    • 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
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0404—Methods of deposition of the material by coating on electrode collectors
    • 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
    • H01M4/04—Processes of manufacture in general
    • H01M4/043—Processes of manufacture in general involving compressing or compaction
    • H01M4/0435—Rolling or calendering
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H01M4/1397—Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
    • 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
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/242—Hydrogen storage electrodes
    • 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
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/246—Cadmium electrodes
    • 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
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/26—Processes of manufacture
    • H01M4/28—Precipitating active material on the carrier
    • 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
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/26—Processes of manufacture
    • H01M4/30—Pressing
    • 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
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/32—Nickel oxide or hydroxide electrodes
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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

Abstract

The invention belongs to technical field of secondary batteries, a kind of battery pole piece and preparation method thereof and secondary cell are disclosed.The battery pole piece includes collector, active material, binder, conductive agent and the phase-change material to improve battery high and low temperature performance.The phase-change material (such as paraffin) of 0.1~10% (weight relative to positive and negative electrode active material) is added in the formula of battery plus-negative plate of the invention, after battery is made, when battery is under low temperature, because phase-change material be able to maintain at low temperature it is temperature-resistant in the case where release heat, temperature inside battery core will not be quickly cooled to outside environment temperature, when electric discharge, the heat generated inside battery core is saved in inside battery core, in this way discharge performance of the raising battery in low temperature；Equally, when environment temperature increases, phase-change material can absorb heat and keep self-temperature constant, and battery is made to discharge at high temperature, safety accident will not occur because temperature ascending branch is excessively high；Battery high temperature performance can be improved simultaneously.

Description

A kind of battery pole piece and preparation method thereof and secondary cell
Technical field
The invention belongs to technical field of secondary batteries, in particular to a kind of battery pole piece and preparation method thereof and secondary electricity Pond.
Background technique
Secondary cell (such as lithium ion battery, nickel-cadmium cell, nickel-metal hydride battery) has the characteristics that energy density is high, answers extensively For various industries, but every field is higher and higher to battery performance requirements, and in some military projects and extremely cold field needs battery energy Enough subzero 50 degree of uses, but existing battery is not available substantially to 40 degrees below zero, can not meet the needs of special dimension.
Meanwhile at high temperature, heat can be also generated in battery charge and discharge process, cause battery self-temperature excessively high, exist Security risk.
Summary of the invention
In order to overcome the shortcomings and deficiencies of the prior art described above, the primary purpose of the present invention is that providing a kind of battery pole Piece.
Another object of the present invention is to provide the preparation method of above-mentioned battery pole piece.
Still a further object of the present invention is to provide a kind of secondary cell including above-mentioned battery pole piece.
The purpose of the present invention is realized by following proposal:
A kind of battery pole piece comprising collector, active material, binder, conductive agent and high and low to improve battery The additive of warm nature energy, wherein additive is phase-change material；
The phase-change material can be paraffin；
The weight that the dosage of the additive meets additive is the 0.1~10% of active material weight；
Preferably, it is the 5~10% of active material weight that the dosage of the additive, which meets the weight of additive,；
Collector, active material, binder in the battery pole piece and and conductive agent be in secondary cell often Advise collector, active material, binder and and the conductive agent used.
The battery pole piece can be battery positive pole piece or negative pole piece of battery；
When the battery pole piece is the anode pole piece of lithium ion battery, the active material is cobalt acid lithium, ternary At least one of material, LiMn2O4, LiFePO4, the collector are aluminium foil or titanium foil, and the binder is PVDF, The conductive agent is at least one of electrically conductive graphite, carbon nanotube, the positive active material: conductive agent: binder =100:2.5:5 (weight ratio)；When the battery pole piece is the cathode pole piece of lithium ion battery, the active material is At least one of graphite, hard carbon, the collector are copper foil, and the binder is at least one in CMC, HPMC, PVA Kind, the conductive agent is at least one of electrically conductive graphite, carbon nanotube, the negative electrode active material: conductive agent: bonding Agent=100:1:1.5 (weight ratio).
When the battery pole piece is the anode pole piece of nickel-cadmium cell, the active material is nickel hydroxide, described Collector be Foamed Nickel, the binder is at least one of CMC, HPMC, PVA, and the conductive agent is that oxidation is sub- At least one of cobalt, nickel powder, graphite, the positive active material: conductive agent: binder=100:5:0.5 (weight ratio)； When the battery pole piece is the cathode pole piece of nickel-cadmium cell, the active material be cadmium oxide, in Spongy Cadmium at least One kind, the collector are steel band, and the binder is at least one of CMC, HPMC, PVA, and the conductive agent is At least one of nickel powder, electrically conductive graphite, the negative electrode active material: conductive agent: binder=100:1:1 (weight ratio).
When the battery pole piece is the anode pole piece of nickel-metal hydride battery, the active material is nickel hydroxide, described Collector be Foamed Nickel, the binder is at least one of CMC, HPMC, PVA, and the conductive agent is that oxidation is sub- At least one of cobalt, nickel powder, graphite, the positive active material: conductive agent: binder=100:5:0.5 (weight ratio)； When the battery pole piece is the cathode pole piece of nickel-metal hydride battery, the active material is hydrogen bearing alloy, the collector For steel band, the binder is at least one of CMC, HPMC, PVA, the conductive agent be nickel powder, in graphite at least One kind, the negative electrode active material: conductive agent: binder=100:1:1 (weight ratio).
A kind of preparation method of above-mentioned battery pole piece, comprising the following steps:
Active material, conductive agent, binder and additive are added in solvent, dispersion is sufficiently stirred, obtains slurry；It will Gained slurry is coated on a current collector and is dried, then by roll operation and vacuum drying to get the battery pole piece.
The solvent is at least one of water, N-Methyl pyrrolidone (NMP)；Wherein the dosage of solvent meets activity The weight ratio of material and solvent is 100:30~50；
Above-mentioned battery pole piece is preparing secondary cell, is especially preparing lithium ion battery, nickel-cadmium cell or ni-mh electricity Application in pond.
A kind of secondary cell comprising at least one of above-mentioned battery positive pole piece and battery pole piece.
The present invention compared with the existing technology, have the following advantages and the utility model has the advantages that
0.1~10% (weight relative to positive and negative electrode active material) is added in the formula of battery plus-negative plate of the invention Phase-change material (such as paraffin), after battery is made, when battery is under low temperature, because phase-change material is able to maintain temperature at low temperature Spend it is constant in the case where release heat, the temperature inside battery core will not be quickly cooled to outside environment temperature, when electric discharge, in battery core The heat that portion generates is saved in inside battery core, in this way discharge performance of the raising battery in low temperature；Equally, when environment temperature increases When, phase-change material can absorb heat and keep self-temperature constant, and battery is made to discharge at high temperature, will not be because of temperature ascending branch It is excessively high and safety accident occurs；Therefore it can improve battery high temperature performance simultaneously.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Agents useful for same can routinely be bought unless otherwise specified from market in embodiment.
Embodiment 1
0.1% is added respectively (relative to positive and negative electrode active material into the anode and the formula of cathode of lithium ion battery Weight) paraffin, anode pole piece and cathode pole piece are obtained, battery is then made, septation is 23 model of cergard, electrolyte For the lithium hexafluoro phosphate organic solution of 1mol/L；
Lithium ion cell positive formula are as follows: positive active material (cobalt acid lithium): conductive agent (electrically conductive graphite): binder (PVDF): solvent (NMP)=100:2.5:5:50 (weight ratio)；
Negative electrode of lithium ion battery formula are as follows: active material (graphite): conductive agent (electrically conductive graphite): binder (CMC): solvent (water)=100:1:1.5:50 (weight ratio)；
Embodiment 2
1% (the weight relative to positive and negative electrode active material is added respectively into the anode and the formula of cathode of lithium ion battery Amount) paraffin, anode pole piece and cathode pole piece are obtained, battery is then made, septation is 23 model of cergard, and electrolyte is The lithium hexafluoro phosphate organic solution of 1mol/L；It is consistent in the formula and embodiment 1 of lithium ion battery plus-negative plate.
Embodiment 3
3% (the weight relative to positive and negative electrode active material is added respectively into the anode and the formula of cathode of lithium ion battery Amount) paraffin, anode pole piece and cathode pole piece are obtained, battery is then made, septation is 23 model of cergard, and electrolyte is The lithium hexafluoro phosphate organic solution of 1mol/L；It is consistent in the formula and embodiment 1 of lithium ion battery plus-negative plate.
Embodiment 4
5% (the weight relative to positive and negative electrode active material is added respectively into the anode and the formula of cathode of lithium ion battery Amount) paraffin, anode pole piece and cathode pole piece are obtained, battery is then made, septation is 23 model of cergard, and electrolyte is The lithium hexafluoro phosphate organic solution of 1mol/L；It is consistent in the formula and embodiment 1 of lithium ion battery plus-negative plate.
Embodiment 5
7% (the weight relative to positive and negative electrode active material is added respectively into the anode and the formula of cathode of lithium ion battery Amount) paraffin, anode pole piece and cathode pole piece are obtained, battery is then made, septation is 23 model of cergard, and electrolyte is The lithium hexafluoro phosphate organic solution of 1mol/L；It is consistent in the formula and embodiment 1 of lithium ion battery plus-negative plate.
Embodiment 6
10% is added respectively (relative to positive and negative electrode active material into the anode and the formula of cathode of lithium ion battery Weight) paraffin, anode pole piece and cathode pole piece are obtained, battery is then made, septation is 23 model of cergard, electrolyte For the lithium hexafluoro phosphate organic solution of 1mol/L；It is consistent in the formula and embodiment 1 of lithium ion battery plus-negative plate.
Embodiment 7
0.1% (the weight relative to positive and negative electrode active material is added respectively into the anode and the formula of cathode of nickel-metal hydride battery Amount) paraffin, anode pole piece and cathode pole piece are obtained, battery is then made, septation is 23 model of cergard, and electrolyte is The lithium hexafluoro phosphate organic solution of 1mol/L；
Anode of nickel-metal hydride battery formula are as follows: positive active material (nickel hydroxide): conductive agent (cobalt protoxide): binder (CMC): solvent (water)=100:5:0.5:50 (weight ratio)；
Nickel-hydrogen battery negative pole formula are as follows: negative electrode active material (hydrogen bearing alloy): conductive agent (graphite): binder (CMC): molten Agent (water)=100:1:1:30 (weight ratio).
Embodiment 8
1% (the weight relative to positive and negative electrode active material is added respectively into the anode and the formula of cathode of nickel-metal hydride battery Amount) paraffin, anode pole piece and cathode pole piece are obtained, battery is made, septation is 23 model of cergard, and electrolyte is The lithium hexafluoro phosphate organic solution of 1mol/L；It is consistent in the formula and embodiment 7 of nickel-metal hydride battery positive and negative anodes.
Embodiment 9
3% (the weight relative to positive and negative electrode active material is added respectively into the anode and the formula of cathode of nickel-metal hydride battery Amount) paraffin, anode pole piece and cathode pole piece are obtained, battery is made, septation is 23 model of cergard, and electrolyte is The lithium hexafluoro phosphate organic solution of 1mol/L；It is consistent in the formula and embodiment 7 of nickel-metal hydride battery positive and negative anodes.
Embodiment 10
5% (the weight relative to positive and negative electrode active material is added respectively into the anode and the formula of cathode of nickel-metal hydride battery Amount) paraffin, anode pole piece and cathode pole piece are obtained, battery is made, septation is 23 model of cergard, and electrolyte is The lithium hexafluoro phosphate organic solution of 1mol/L；It is consistent in the formula and embodiment 7 of nickel-metal hydride battery positive and negative anodes.
Embodiment 11
7% (the weight relative to positive and negative electrode active material is added respectively into the anode and the formula of cathode of nickel-metal hydride battery Amount) paraffin, anode pole piece and cathode pole piece are obtained, battery is made, septation is 23 model of cergard, and electrolyte is The lithium hexafluoro phosphate organic solution of 1mol/L；It is consistent in the formula and embodiment 7 of nickel-metal hydride battery positive and negative anodes.
Embodiment 12
10% (the weight relative to positive and negative electrode active material is added respectively into the anode and the formula of cathode of nickel-metal hydride battery Amount) paraffin, anode pole piece and cathode pole piece are obtained, battery is made, septation is 23 model of cergard, and electrolyte is The lithium hexafluoro phosphate organic solution of 1mol/L；It is consistent in the formula and embodiment 7 of nickel-metal hydride battery positive and negative anodes.
Comparative example 1:
The difference from embodiment 1 is that not adding phase-change material paraffin in positive and negative electrode, remaining is consistent with embodiment 1.
Comparative example 2
Difference with embodiment 7 is that positive and negative electrode does not add phase-change material paraffin, remaining is consistent with embodiment 7.
Comparative example 3
The additive amount of paraffin in the formula of anode and cathode in embodiment 1 is changed to 0.09%, other are the same as embodiment 1；
Comparative example 4
The additive amount of paraffin in the formula of anode and cathode in embodiment 1 is changed to 10.1%, other are the same as embodiment 1；
Comparative example 5
The additive amount of paraffin in the formula of anode and cathode in embodiment 1 is changed to 11%, other are the same as embodiment 1；
Comparative example 6
The additive amount of paraffin in the formula of anode and cathode in embodiment 7 is changed to 0.09%, other are the same as embodiment 7；
Comparative example 7
The additive amount of paraffin in the formula of anode and cathode in embodiment 7 is changed to 10.1%, other are the same as embodiment 7；
Comparative example 8
The additive amount of paraffin in the formula of anode and cathode in embodiment 7 is changed to 11%, other are the same as embodiment 7；
By the above Battery formation (after battery seal, 45 DEG C are shelved 8 hours, and 0.05C charges 8 hours, then 45 degree to shelve 16 small When), it is tested；
For lithium ion battery: by lithium ion battery normal temperature shelf for 24 hours, then 0.5C is discharged to 2.5V, measures room temperature Discharge capacity；Lithium ion battery is shelved for 24 hours at -30 DEG C, then 0.5C is discharged to 1.5V, the discharge capacity of -30 DEG C of measurement； Lithium ion battery is shelved for 24 hours at 50 DEG C, then 0.5C is discharged to 2.5V, the discharge capacity of 50 DEG C of measurement；By lithium ion battery It is shelved for 24 hours at 50 DEG C, then 1C is discharged to 2.5V, the surface temperature of battery at the end of measurement electric discharge；
For nickel-metal hydride battery, by nickel-metal hydride battery normal temperature shelf for 24 hours, then 0.5C is discharged to 1.0V, measures putting for room temperature Capacitance；Nickel-metal hydride battery is shelved for 24 hours at -30 DEG C, then 0.5C is discharged to 0.8V, the discharge capacity of -30 DEG C of measurement；By ni-mh Battery is shelved for 24 hours at 50 DEG C, and then 0.5C is discharged to 1.0V, the discharge capacity of 50 DEG C of measurement；Nickel-metal hydride battery is shelved at 50 DEG C For 24 hours, then 1C is discharged to 1.0V, the surface temperature of battery at the end of measurement electric discharge；
Internal resistance is the AC internal Resistance tested under room temperature.
It is as shown in table 1 below to obtain data:
The performance test data of battery prepared by 1 embodiment 1~12 of table and comparative example 1~8
From table 1 it follows that by adding phase-change material into battery, it can be bright the case where not appreciably affecting resistance The aobvious high temperature performance for improving battery.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention, It should be equivalent substitute mode, be included within the scope of the present invention.

Claims (9)

1. a kind of battery pole piece, it is characterised in that including collector, active material, binder, conductive agent and to improve electricity The additive of pond high and low temperature performance, wherein the additive is phase-change material.
2. battery pole piece according to claim 1, it is characterised in that:
The phase-change material is paraffin.
3. battery pole piece according to claim 1 or 2, it is characterised in that:
The weight that the dosage of the additive meets additive is the 0.1~10% of active material weight.
4. battery pole piece according to claim 1 or 2, it is characterised in that:
The weight that the dosage of the additive meets additive is the 5~10% of active material weight.
5. a kind of preparation method of battery pole piece according to any one of claims 1 to 4, it is characterised in that including following step It is rapid:
Active material, conductive agent, binder and additive are added in solvent, dispersion is sufficiently stirred, obtains slurry；By gained Slurry is coated on a current collector and is dried, then by roll operation and vacuum drying to get the battery pole piece.
6. the preparation method of battery pole piece according to claim 5, it is characterised in that:
The solvent is at least one of water, N-Methyl pyrrolidone；Wherein the dosage of solvent meets active material and molten The weight ratio of agent is 100:30~50.
7. a kind of secondary cell, it is characterised in that wanted including the described in any item battery positive pole pieces of Claims 1 to 4 and right Seek at least one of 1~4 described in any item negative battery pole pieces.
8. secondary cell according to claim 7, it is characterised in that:
The secondary cell is lithium ion battery, nickel-cadmium cell or nickel-metal hydride battery.
9. secondary cell according to claim 8, it is characterised in that:
In the anode slice of lithium ion battery, the active material is cobalt acid lithium, ternary material, LiMn2O4, ferric phosphate At least one of lithium, the collector are aluminium foil or titanium foil, and the binder is PVDF, and the conductive agent is conduction The weight ratio of at least one of graphite, carbon nanotube, the positive active material, conductive agent and binder is 100:2.5: 5；In the lithium ion battery negative electrode, the active material is at least one of graphite, hard carbon, the afflux Body is copper foil, and the binder is at least one of CMC, HPMC, PVA, and the conductive agent is electrically conductive graphite, carbon nanometer Pipe at least one of, the negative electrode active material, conductive agent, binder weight ratio be 100:1:1.5；
In the anode pole piece of the nickel-cadmium cell, the active material is nickel hydroxide, and the collector is Foamed Nickel, The binder is at least one of CMC, HPMC, PVA, the conductive agent be cobalt protoxide, nickel powder, in graphite extremely Few one kind, the weight ratio of the positive active material, conductive agent and binder are 100:5:0.5；The nickel-cadmium cell In cathode pole piece, the active material is at least one of cadmium oxide, Spongy Cadmium, and the collector is steel band, described Binder be at least one of CMC, HPMC, PVA, the conductive agent is at least one of nickel powder, electrically conductive graphite, institute The weight ratio of negative electrode active material, conductive agent and the binder stated is 100:1:1；
In the anode pole piece of the nickel-metal hydride battery, the active material is nickel hydroxide, and the collector is Foamed Nickel, The binder is at least one of CMC, HPMC, PVA, the conductive agent be cobalt protoxide, nickel powder, in graphite extremely Few one kind, the positive active material, conductive agent, binder weight ratio be 100:5:0.5；The nickel-metal hydride battery is born In the pole piece of pole, the active material be hydrogen bearing alloy, the collector be steel band, the binder be CMC, HPMC, At least one of PVA, the conductive agent are at least one of nickel powder, graphite, the negative electrode active material, conductive agent Weight ratio with binder is 100:1:1.
CN201910574445.3A 2019-06-28 2019-06-28 A kind of battery pole piece and preparation method thereof and secondary cell Pending CN110247018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910574445.3A CN110247018A (en) 2019-06-28 2019-06-28 A kind of battery pole piece and preparation method thereof and secondary cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910574445.3A CN110247018A (en) 2019-06-28 2019-06-28 A kind of battery pole piece and preparation method thereof and secondary cell

Publications (1)

Publication Number Publication Date
CN110247018A true CN110247018A (en) 2019-09-17

Family

ID=67890145

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910574445.3A Pending CN110247018A (en) 2019-06-28 2019-06-28 A kind of battery pole piece and preparation method thereof and secondary cell

Country Status (1)

Country Link
CN (1) CN110247018A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111769283A (en) * 2020-06-23 2020-10-13 合肥国轩高科动力能源有限公司 High-safety lithium ion battery negative pole piece
CN112038573A (en) * 2020-08-19 2020-12-04 江苏塔菲尔新能源科技股份有限公司 Pole piece and preparation method thereof, battery core and battery
CN112490406A (en) * 2020-12-02 2021-03-12 欣旺达电动汽车电池有限公司 Electrode pole piece and lithium ion battery
CN113270661A (en) * 2021-05-13 2021-08-17 珠海冠宇电池股份有限公司 Pole piece and battery
CN113517444A (en) * 2020-04-10 2021-10-19 荣盛盟固利新能源科技有限公司 Current collector, current collector manufacturing method, electrode pole piece and lithium ion battery
CN116759574A (en) * 2023-08-16 2023-09-15 深圳海辰储能控制技术有限公司 Negative electrode material, negative electrode plate, preparation method of negative electrode plate and lithium battery

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1993846A (en) * 2004-08-06 2007-07-04 株式会社Lg化学 Battery system containing phase change materia containing capsules in interior configuration thereof
CN105470494A (en) * 2014-08-29 2016-04-06 比亚迪股份有限公司 Active material composition for positive electrode, positive electrode slurry and preparation method thereof, positive plate and preparation method thereof, and lithium ion battery
CN105594009A (en) * 2013-02-21 2016-05-18 罗伯特·博世有限公司 Battery with internal phase change materials
US20190013553A1 (en) * 2014-11-25 2019-01-10 American Lithium Energy Corporation Rechargeable battery with resistive layer for enhanced safety
US20190097265A1 (en) * 2017-09-26 2019-03-28 University Of South Florida Phase-change nanoparticles for li-ion battery safety
CN109888221A (en) * 2019-02-26 2019-06-14 成都爱敏特新能源技术有限公司 A kind of high security lithium ion battery cathode composite material and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1993846A (en) * 2004-08-06 2007-07-04 株式会社Lg化学 Battery system containing phase change materia containing capsules in interior configuration thereof
CN105594009A (en) * 2013-02-21 2016-05-18 罗伯特·博世有限公司 Battery with internal phase change materials
CN105470494A (en) * 2014-08-29 2016-04-06 比亚迪股份有限公司 Active material composition for positive electrode, positive electrode slurry and preparation method thereof, positive plate and preparation method thereof, and lithium ion battery
US20190013553A1 (en) * 2014-11-25 2019-01-10 American Lithium Energy Corporation Rechargeable battery with resistive layer for enhanced safety
US20190097265A1 (en) * 2017-09-26 2019-03-28 University Of South Florida Phase-change nanoparticles for li-ion battery safety
CN109888221A (en) * 2019-02-26 2019-06-14 成都爱敏特新能源技术有限公司 A kind of high security lithium ion battery cathode composite material and preparation method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113517444A (en) * 2020-04-10 2021-10-19 荣盛盟固利新能源科技有限公司 Current collector, current collector manufacturing method, electrode pole piece and lithium ion battery
CN111769283A (en) * 2020-06-23 2020-10-13 合肥国轩高科动力能源有限公司 High-safety lithium ion battery negative pole piece
CN112038573A (en) * 2020-08-19 2020-12-04 江苏塔菲尔新能源科技股份有限公司 Pole piece and preparation method thereof, battery core and battery
CN112490406A (en) * 2020-12-02 2021-03-12 欣旺达电动汽车电池有限公司 Electrode pole piece and lithium ion battery
CN113270661A (en) * 2021-05-13 2021-08-17 珠海冠宇电池股份有限公司 Pole piece and battery
CN116759574A (en) * 2023-08-16 2023-09-15 深圳海辰储能控制技术有限公司 Negative electrode material, negative electrode plate, preparation method of negative electrode plate and lithium battery
CN116759574B (en) * 2023-08-16 2024-01-26 深圳海辰储能控制技术有限公司 Negative electrode material, negative electrode plate, preparation method of negative electrode plate and lithium battery

Similar Documents

Publication Publication Date Title
CN110247018A (en) A kind of battery pole piece and preparation method thereof and secondary cell
CN105118972B (en) Metal hydroxide coated carbon and sulfur lithium-sulfur battery positive electrode material, and preparation method and application thereof
CN106229498B (en) Cathode material suitable for water-based metal ion battery and preparation method thereof
CN103762334B (en) Lithium ion secondary battery and its anode
US20220077456A1 (en) Core-shell nickel ferrite and preparation method thereof, nickel ferrite@c material and preparation method and application thereof
CN105514432B (en) A kind of iron phosphate compound anode material of lithium and preparation method thereof
CN104916825A (en) Preparation method of lithium battery high-voltage modified cathode material
CN111146410B (en) Negative electrode active material and battery
CN102610790A (en) Lithium ion secondary battery and anode plate of lithium ion secondary battery
CN104681860A (en) Quick charging and discharging type high voltage lithium ion battery and preparation method thereof
WO2016141861A1 (en) Battery, battery pack and uninterruptible power supply
CN112928334A (en) Battery cell, lithium ion secondary battery, electric bus comprising lithium ion secondary battery and energy storage system
CN102983308A (en) Carbon nanotube array/nickel oxide nanoparticle coaxial composite cathode material and preparation method thereof
CN110335996A (en) A kind of high capacity lithium ion cells cathode and its application
CN106876684A (en) A kind of lithium battery silicium cathode material, negative plate and the lithium battery prepared with it
CN109546099B (en) Graphite composite negative electrode material, preparation method thereof and lithium ion battery
CN201562696U (en) Housing for battery and battery thereof
CN104282952B (en) Electrolyte and battery
CN112786887A (en) Graphite negative electrode material for high temperature and preparation method thereof
EP4145476A1 (en) Positive electrode of hybrid capacitor and manufacturing method therefor and use thereof
CN109309228B (en) Positive electrode active material, preparation method, positive electrode and high-specific-energy power battery
CN115939361A (en) Copper phosphide-doped hard carbon composite material and preparation method thereof
CN103427119B (en) Battery with a battery cell
CN102280662B (en) A kind of battery with nonaqueous electrolyte
CN115881443A (en) Method for improving electrochemical performance and safety of negative electrode material

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190917

RJ01 Rejection of invention patent application after publication