CN106876684A - A kind of lithium battery silicium cathode material, negative plate and the lithium battery prepared with it - Google Patents

A kind of lithium battery silicium cathode material, negative plate and the lithium battery prepared with it Download PDF

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Publication number
CN106876684A
CN106876684A CN201710235195.1A CN201710235195A CN106876684A CN 106876684 A CN106876684 A CN 106876684A CN 201710235195 A CN201710235195 A CN 201710235195A CN 106876684 A CN106876684 A CN 106876684A
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lithium battery
lithium
sio
negative
silicium cathode
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王珂
陶诗涌
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Sichuan State Into A Battery Material Co Ltd
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Sichuan State Into A Battery Material Co Ltd
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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
    • H01M4/366—Composites as layered products
    • 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
    • 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
    • H01M4/134—Electrodes based on metals, Si or alloys
    • 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
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/386—Silicon or alloys based on silicon
    • 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
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
    • 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
    • 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
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • 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
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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 present invention relates to the preparation technology of a kind of lithium battery silicium cathode material, lithium battery negative plate and lithium battery.Silicium cathode material structure formula of the invention is LixSiOy/ C, with core shell structure, by the Li at centerxSiOyThe amorphous carbon layer on material and surface is constituted, whereinxIt is 0.05 ~ 3.Lithium battery negative pole of the invention and lithium battery are by above-mentioned LixSiOy/ C-material is prepared from as the active material of negative plate.Li prepared by the present inventionxSiOy/ C-material Stability Analysis of Structures, electrical conductivity is high, and removal lithium embedded invertibity is good, and efficiency is excellent first.Lithium battery prepared in accordance with the present invention has discharge capacity and cyclical stability high.

Description

A kind of lithium battery silicium cathode material, negative plate and the lithium battery prepared with it
Technical field
The present invention relates to the preparation technology of a kind of lithium battery silicium cathode material, lithium battery negative plate and lithium battery.Belong to Electrochemical technology field.
Background technology
Since the nineties in last century, because lithium ion battery has relative to lead-acid accumulator, nickel-cadmium cell, Ni-MH battery There are operating voltage high, specific energy high, therefore obtain a wide range of applications.With the development of science and technology lithium-ion electric Pond it is more and more for various 3C electronic products and electric tool in, people require it also more and more higher.Therefore Gao Rong is developed Amount, high-power lithium battery are also eager all the more.
Carbonaceous Negative Materials for Li-Ion Battery theoretical capacity only has 372mAh/g, and the limit has been arrived in capacity exploitation.Nearly ten For many years, silicium cathode material has theoretical capacity high due to it（4200mAh/g）, simple structure, raw material sources are more, prepare and hold Easily, of great interest and research.But, the efficiency first of silicium cathode material is very low, while its low electrical conductivity Cause its high rate performance not poor, and silicon experiences very big Volume Changes during repeated charge, and volumetric expansion there are about 3-4 Times, cause battery that obvious capacity attenuation occurs quickly.Although many research institutions and material manufacturer are modified by surface, doping And the method such as compound, material is optimized, certain effect is achieved, but still be not very good, actually should Many is also there is in, its extensive practical application is limited.
Adverse effect of lithium battery cycle life etc. is asked in order to solve efficiency and the volumetric expansion first of silicium cathode material Topic, the negative electrode for lithium ion battery piece prepared the invention provides a kind of silicium cathode material of embedding lithium in advance and with the material, lithium Ion battery.
The content of the invention
The lithium prepared it is an object of the invention to provide a kind of lithium battery silicium cathode material, lithium battery negative plate and with it Battery, solves inefficiency first of the prior art, the short problem of cycle life.
To achieve these goals, the technical solution adopted by the present invention is as follows：
The technical scheme of lithium battery silicium cathode material of the invention is to silicium cathode material by pre- embedding lithium technology and coating technology It is modified.Lithium battery silicium cathode material structure formula Li of the inventionxSiOy/ C, with core shell structure, by the Li at centerxSiOy The amorphous carbon layer on material and surface is constituted, whereinxIt is that 0.05 ~ 3, y is 0.06 ~ 4.5；LixSiOyAccount for the matter of the negative material Amount percentage is 95-98%, and the mass percent that amorphous carbon layer accounts for the negative material is 2-5%；LixSiOyBy Li4SiO4, Li2SiO3Constituted with LiSi；The LixSiOy/ C negative materials are prepared and comprised the following steps：
A, by nanometer silicon source, lithium source, carbon-source cpd, stoichiometrically weigh；
B, it is 1 according to mass ratio by the material in step A and dispersant ethanol or acetone:10~1:50 weigh；Ball milling mixing is equal Even rear stirring and drying；
C, dried powder in step B is placed in tube furnace, 400 DEG C under an argon ~ 1400 DEG C roasting temperatures 1 ~ 12 Hour, natural cooling obtains required LixSiOy/ C negative materials.
The pattern of heretofore described nanometer silicon source be graininess, hollow spheres, tubulose, it is bar-shaped in any one, chi It is very little to be distributed in 10-50nm.Described nanometer silicon source is any one or more in silicon, silicon monoxide and silica；Described Lithium source is any one or more in lithium hydroxide, lithium carbonate, lithium oxalate, lithium acetate, lithium iodide, lithium nitrate or lithium acetate；Institute The carbon source stated is any one in Tween 80, polysorbate60, polysorbate40, glucose, starch, sucrose.
Lithium battery of the invention is as follows with negative plate technical scheme：
Negative electrode layer of the negative plate by copper foil current collector and coating on a current collector is constituted, and the negative electrode layer is by following mass percent Component is constituted：4-40% above-mentioned silicium cathode material, 42-80% carbon negative pole materials, the binding agent of 2-8%, the conductive agent of 2-10%.
Heretofore described carbon negative pole material is in native graphite, Delanium, carbonaceous mesophase spherules MCMB and hard carbon Any one or more；Described binding agent is oiliness binding agent；Described conductive agent is granular conductive black, tubulose One or more in carbon fiber, CNT, the Graphene of sheet.
Lithium battery technology scheme of the invention is as follows：
Lithium battery of the invention has positive plate, above-mentioned lithium battery negative plate, electrolyte and barrier film.Work used by positive plate Property material be cobalt acid lithium, LiMn2O4, nickle cobalt lithium manganate and nickel cobalt lithium aluminate in one or more.
The present invention compared with prior art, with advantages below and beneficial effect：
Li prepared by the present inventionxSiOy/ C-material improves electrical conductivity, removal lithium embedded by introducing lithium and carbon in silicon raw material Invertibity and first efficiency, there is provided a kind of discharge capacity at initial stage and the efficiency for charge-discharge at initial stage negative electrode for lithium ion battery high And lithium ion battery, and material synthesis method is that raw material mixes latter step high-temperature process, preparation method is simple, easily realizes It is prepared by inexpensive batch.
Brief description of the drawings
Fig. 1 is Li in embodiment 1xSiOyThe XRD spectrum of/C-material.
Fig. 2 is the SEM photograph of lithium battery negative plate in embodiment 1.
Fig. 3 is lithium battery interior structural representation in embodiment 1.
Specific embodiment
With reference to embodiment, the invention will be further described, and embodiments of the present invention include but is not limited to following reality Apply example.
Embodiment 1
Silicium cathode material Li used by the lithium battery of the present embodiment0.8SiO1.2/ C, specific composition is Li0.8SiO1.2For 96 parts by Li4SiO4, Li2SiO3With LiSi compositions, 4 parts of amorphous carbon layer.Li0.8SiO1.2/ C negative materials.Preparation process is as follows：
First by the spherical silicon of 20nm or so, lithium carbonate and lithium iodide, glucose, mixing is stoichiometrically weighed, next is pressed It is 1 according to mixing material and dispersant ethanol mass ratio：25 weigh ethanol solution.Stirring and drying after ball milling mixing is uniform, finally will Dried powder is placed in tube furnace, 600 DEG C of roasting temperatures 12 hours under argon gas part, needed for natural cooling is obtained Li0.8Si/C negative materials.Fig. 1 gives Li0.8SiO1.2The XRD spectrum of/C.
Negative electrode layer of the negative plate used by the lithium battery of the present embodiment by copper foil current collector and coating on a current collector is constituted, should Negative electrode layer is made up of the component of following mass percent：20% above-mentioned Li0.8SiO1.2/ C negative materials, 65% native graphite carbon are born Pole material, 5% oiliness binding agent PVDF, 10% conductive agent wherein conductive black Super P are 7%, conductive carbon fiber VGCF is 3%.Fig. 2 gives the SEM photograph of negative electrode layer.
The lithium battery of the present embodiment is as shown in figure 3, including positive plate, negative plate and barrier film, negative plate is above-mentioned lithium electricity Pond negative plate.Positive plate is by plus plate current-collecting body aluminium foil and the anode material nickel cobalt manganic acid lithium being coated on plus plate current-collecting body layer structure Into.Positive plate and negative plate are assembled by the way of interlaced lamination, the area of the area more than positive plate of negative plate, So that negative plate can be made to cover positive plate.
Embodiment 2
Silicium cathode material Li used by the lithium battery of the present embodiment0.6SiO/C, specific composition is Li0.6SO be 98 parts by Li4SiO4, Li2SiO3With LiSi compositions, 2 parts of amorphous carbon layer.Li0.6SiO/C negative materials.Preparation process is as follows：
First by the spherical silicon of 50nm or so, lithium acetate and lithium iodide, Tween 80, mixing is stoichiometrically weighed, next is pressed It is 1 according to mixing material and dispersant ethanol mass ratio：50 weigh ethanol solution.Stirring and drying after ball milling mixing is uniform, finally will Dried powder is placed in tube furnace, 800 DEG C of roasting temperatures 6 hours under argon gas part, needed for natural cooling is obtained Li0.6SiO/C negative materials.
Negative electrode layer of the negative plate used by the lithium battery of the present embodiment by copper foil current collector and coating on a current collector is constituted, should Negative electrode layer is made up of the component of following mass percent：40% above-mentioned Li0.6Si/C negative materials, 45% native graphite Carbon anode Material, 6% oiliness binding agent, wherein PVDF are 4.5% and are VDF1.5%, 9% conductive agent wherein conductive black Super P is 6%, and conductive carbon fiber VGCF is 3%.
The lithium battery of the present embodiment, including positive plate, negative plate and barrier film, negative plate are above-mentioned lithium battery negative pole Piece.Positive plate is made up of plus plate current-collecting body aluminium foil and the positive-material lithium manganate being coated on plus plate current-collecting body layer.Positive plate and Negative plate is assembled by the way of interlaced lamination, the area of the area more than positive plate of negative plate, can make to bear Pole piece covers positive plate.
Embodiment 3
Silicium cathode material Li used by the lithium battery of the present embodiment3SiO4.5/ C, specific composition is Li3SiO4.5For 96 parts by Li4SiO4, Li2SiO3With LiSi compositions, 4 parts of amorphous carbon layer.Li3SiO4.5/ C negative materials.Preparation process is as follows：
First by the silicon dioxide hollow sphere of 30nm or so, lithium hydroxide, Tween 80, mixing is stoichiometrically weighed, secondly It is 1 according to mixing material and dispersant ethanol mass ratio：10 weigh ethanol solution.Stirring and drying after ball milling mixing is uniform, finally Dried powder is placed in tube furnace, 1400 DEG C of roasting temperatures 1 hour under argon gas part, needed for natural cooling is obtained Li3SiO4.5/ C negative materials.
Negative electrode layer of the negative plate used by the lithium battery of the present embodiment by copper foil current collector and coating on a current collector is constituted, should Negative electrode layer is made up of the component of following mass percent：4% above-mentioned Li3SiO4.5/ C negative materials, 80% MCMB Carbon anode materials Material, 6% oiliness binding agent PVDF, 10% conductive agent wherein conductive black Super P are 7%, and conductive carbon fiber VGCF is 3%。
The lithium battery of the present embodiment, including positive plate, negative plate and barrier film, negative plate are above-mentioned lithium battery negative pole Piece.Positive plate is made up of plus plate current-collecting body aluminium foil and the anode material nickel cobalt aluminic acid lithium layer being coated on plus plate current-collecting body.Positive pole Piece and negative plate are assembled by the way of interlaced lamination, the area of negative plate more than positive plate area, with can Negative plate is set to cover positive plate.
Embodiment 4
Silicium cathode material Li used by the lithium battery of the present embodiment0.05SiO0.06/ C, specific composition is Li0.05SiO0.06It is 97 parts By Li4SiO4, Li2SiO3With LiSi compositions, 3 parts of amorphous carbon layer.Li0.05SiO0.06/ C negative materials.Preparation process is as follows：
First by the silicon of 40nm or so, lithium carbonate and lithium iodide, starch, mixing is stoichiometrically weighed, secondly according to mixing Material is 1 with dispersant ethanol mass ratio：30 weigh ethanol solution.Stirring and drying after ball milling mixing is uniform, after finally drying Powder be placed in tube furnace, 400 DEG C of roasting temperatures 12 hours under argon gas part, needed for natural cooling is obtained Li0.05SiO0.06/ C negative materials.
Negative electrode layer of the negative plate used by the lithium battery of the present embodiment by copper foil current collector and coating on a current collector is constituted, should Negative electrode layer is made up of the component of following mass percent：5% above-mentioned Li0.05SiO0.06/ C negative materials, 80% MCMB Carbon anodes Material, 6% oiliness binding agent PVDF, 9% conductive agent wherein conductive black Super P are 6%, and conductive CNT is 3%。
The lithium battery of the present embodiment, including positive plate, negative plate and barrier film, negative plate are above-mentioned lithium battery negative pole Piece.Positive plate is made up of plus plate current-collecting body aluminium foil and the anode material nickel cobalt aluminic acid lithium layer being coated on plus plate current-collecting body.Positive pole Piece and negative plate are assembled by the way of interlaced lamination, the area of negative plate more than positive plate area, with can Negative plate is set to cover positive plate.
Embodiment 5
Silicium cathode material LiSiO used by the lithium battery of the present embodiment1.5/ C, specific composition is LiSiO1.5For 97 parts by Li4SiO4, Li2SiO3With LiSi compositions, 3 parts of amorphous carbon layer.LiSiO1.5/ C negative materials.Preparation process is as follows：
First by the silicon of 40nm or so, lithium iodide, starch, mixing is stoichiometrically weighed, next is according to mixing material and divides Powder ethanol mass ratio is 1：30 weigh ethanol solution.Stirring and drying after ball milling mixing is uniform, finally puts dried powder In tube furnace, 600 DEG C of roasting temperatures 12 hours under argon gas part, natural cooling obtains required LiSiO1.5/ C negative materials.
Negative electrode layer of the negative plate used by the lithium battery of the present embodiment by copper foil current collector and coating on a current collector is constituted, should Negative electrode layer is made up of the component of following mass percent：7% above-mentioned LiSiO1.5/ C negative materials, 80% hard charcoal Carbon anode material Material, 6% oiliness binding agent PVDF, 7% conductive agent wherein conductive black Super P are 5%, and conductive Graphene is 2%.
The lithium battery of the present embodiment, including positive plate, negative plate and barrier film, negative plate are above-mentioned lithium battery negative pole Piece.Positive plate is by plus plate current-collecting body aluminium foil and the anode material nickel cobalt manganic acid lithium and mangaic acid lithium layer structure that are coated on plus plate current-collecting body Into.Positive plate and negative plate are assembled by the way of interlaced lamination, the area of the area more than positive plate of negative plate, So that negative plate can be made to cover positive plate.

Claims (10)

1. a kind of lithium battery silicium cathode material, it is characterised in that silicium cathode material structure formula LixSiOy/ C, with nucleocapsid knot Structure, by the Li at centerxSiOyThe amorphous carbon layer on material and surface is constituted, whereinxIt is that 0.05 ~ 3, y is 0.06 ~ 4.5； LixSiOyThe mass percent of the negative material is accounted for for 95-98%, the mass percent that amorphous carbon layer accounts for the negative material is 2- 5%；LixSiOyBy Li4SiO4, Li2SiO3Constituted with LiSi；The LixSiOy/ C negative materials are prepared and comprised the following steps：
A, by nanometer silicon source, lithium source, carbon-source cpd, stoichiometrically weigh；
B, it is 1 according to mass ratio by the material in step A and dispersant ethanol or acetone:10~1:50 weigh；Ball milling mixing is equal Even rear stirring and drying；
C, dried powder in step B is placed in tube furnace, 400 DEG C under an argon ~ 1400 DEG C roasting temperatures 1 ~ 12 Hour, natural cooling obtains required LixSiOy/ C negative materials.
2. a kind of lithium battery silicium cathode material according to claim 1, it is characterised in that the shape of described nanometer silicon source Looks be graininess, hollow spheres, tubulose, it is bar-shaped in any one, Size Distribution is in 10-50nm.
3. a kind of lithium battery silicium cathode material according to claim 1, it is characterised in that described nanometer silicon source is Any one or more in silicon, silicon monoxide and silica.
4. a kind of lithium battery silicium cathode material according to claim 1, it is characterised in that described lithium source is hydroxide Any one or more in lithium, lithium carbonate, lithium oxalate, lithium acetate, lithium iodide, lithium nitrate or lithium acetate.
5. a kind of lithium battery silicium cathode material according to claim 1, it is characterised in that described carbon source is tween 80th, any one or more in polysorbate60, polysorbate40, glucose, starch, sucrose.
6. a kind of lithium battery negative plate, it is characterised in that negative pole of the negative plate by copper foil current collector and coating on a current collector Layer composition, the negative electrode layer is made up of the component of following mass percent：Silicium cathode described in 4-40% any one of claim 1 ~ 5 Material, 42-80% carbon negative pole materials, the binding agent of 2-6%, the conductive agent of 1-10%.
7. a kind of lithium battery negative plate according to claim 6, it is characterised in that described carbon negative pole material is natural Any one or more in graphite, Delanium, carbonaceous mesophase spherules MCMB and hard carbon.
8. a kind of lithium battery negative plate according to claim 6, it is characterised in that described binding agent is that oiliness is bonded Agent.
9. a kind of lithium battery negative plate according to claim 6, it is characterised in that described conductive agent is granular One or more in conductive black, the carbon fiber of tubulose, CNT, the Graphene of sheet.
10. a kind of lithium battery, it is characterised in that the lithium battery has the negative pole described in positive plate, any one of claim 6 ~ 9 Piece, electrolyte and barrier film；Preferably, the active material used by the positive plate in the lithium battery is cobalt acid lithium, LiMn2O4, nickel cobalt One or more in LiMn2O4 and nickel cobalt lithium aluminate.
CN201710235195.1A 2017-04-12 2017-04-12 A kind of lithium battery silicium cathode material, negative plate and the lithium battery prepared with it Pending CN106876684A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109786733A (en) * 2019-03-25 2019-05-21 中国科学院宁波材料技术与工程研究所 A kind of lithium ion battery negative material, preparation method and lithium ion battery
CN112467122A (en) * 2020-12-03 2021-03-09 松山湖材料实验室 Lithium orthosilicate composite material and preparation method and application thereof
WO2021136245A1 (en) * 2019-12-31 2021-07-08 安普瑞斯（南京）有限公司 Negative electrode active material for battery and preparation method therefor
US20210242458A1 (en) * 2016-10-19 2021-08-05 Osaka Titanium Technologies Co.,Ltd. Lithium doped silicon oxide-based negative electrode material and method of manufacturing the same
CN114695868A (en) * 2020-12-31 2022-07-01 北京卫蓝新能源科技有限公司 Silicon-based prelithiation material and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104022282A (en) * 2014-05-27 2014-09-03 华南理工大学 High temperature solid state preparation method of lithium ion battery cathode material lithium metasilicate
CN105514391A (en) * 2016-01-22 2016-04-20 山东大学 Lithium-metasilicate-modified lithium titanate cathode material and preparing method and application thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104022282A (en) * 2014-05-27 2014-09-03 华南理工大学 High temperature solid state preparation method of lithium ion battery cathode material lithium metasilicate
CN105514391A (en) * 2016-01-22 2016-04-20 山东大学 Lithium-metasilicate-modified lithium titanate cathode material and preparing method and application thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210242458A1 (en) * 2016-10-19 2021-08-05 Osaka Titanium Technologies Co.,Ltd. Lithium doped silicon oxide-based negative electrode material and method of manufacturing the same
US11728479B2 (en) * 2016-10-19 2023-08-15 Osaka Titanium Technologies Co., Ltd. Lithium doped silicon oxide-based negative electrode material and method of manufacturing the same
CN109786733A (en) * 2019-03-25 2019-05-21 中国科学院宁波材料技术与工程研究所 A kind of lithium ion battery negative material, preparation method and lithium ion battery
WO2021136245A1 (en) * 2019-12-31 2021-07-08 安普瑞斯（南京）有限公司 Negative electrode active material for battery and preparation method therefor
CN112467122A (en) * 2020-12-03 2021-03-09 松山湖材料实验室 Lithium orthosilicate composite material and preparation method and application thereof
CN114695868A (en) * 2020-12-31 2022-07-01 北京卫蓝新能源科技有限公司 Silicon-based prelithiation material and preparation method and application thereof

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