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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

本发明属于二次电池技术领域，公开了一种电池极片及其制备方法和二次电池。该电池极片包括集流体、活性材料、粘结剂、导电剂以及用以提高电池高、低温性能的相变材料。本发明的电池正负极的配方中添加0.1～10％(相对于正、负极活性物质的重量)的相变材料(如石蜡)，制成电池后，当电池处于低温下时，因相变材料在低温下能保持温度不变的情况下放出热量，电芯内部的温度不会迅速冷却到外边环境温度，放电时，电芯内部产生的热量被保存在电芯内部，这样提高电池在低温的放电性能；同样，当环境温度升高时，相变材料能够吸收热量并保持本身温度恒定，使电池在高温下放电，不会因为温度升支过高而发生安全事故；能同时改善电池高低温性能。The invention belongs to the technical field of secondary batteries, and discloses a battery pole piece, a preparation method thereof and a secondary battery. The battery pole piece includes a current collector, an active material, a binder, a conductive agent and a phase change material for improving the high and low temperature performance of the battery. Add 0.1 to 10% (relative to the weight of positive and negative electrode active materials) phase change materials (such as paraffin) in the formula of the positive and negative electrodes of the battery of the present invention. After the battery is made, when the battery is at a low temperature, due to phase change The material can release heat while keeping the temperature constant at low temperature. The temperature inside the cell will not cool down to the outside ambient temperature quickly. Discharge performance; similarly, when the ambient temperature rises, the phase change material can absorb heat and keep its own temperature constant, so that the battery can be discharged at high temperature without safety accidents due to excessive temperature rise; it can also improve the high temperature of the battery. low temperature performance.

Description

一种电池极片及其制备方法和二次电池A kind of battery pole piece and preparation method thereof and secondary battery

技术领域technical field

本发明属于二次电池技术领域，特别涉及一种电池极片及其制备方法和二次电池。The invention belongs to the technical field of secondary batteries, and in particular relates to a battery pole piece, a preparation method thereof and a secondary battery.

背景技术Background technique

二次电池(如锂离子电池、镍镉电池、镍氢电池)具有能量密度高等特点，已广泛应用于各个行业，但各个领域对电池性能要求越来越高，在一些军工及极寒领域，需要电池能够零下50度使用，但现有电池到零下40度基本无法使用，满足不了特殊领域的需要。Secondary batteries (such as lithium-ion batteries, nickel-cadmium batteries, and nickel-metal hydride batteries) have the characteristics of high energy density and have been widely used in various industries, but various fields have higher and higher requirements for battery performance. In some military and extreme cold fields, It is required that the battery can be used at minus 50 degrees, but the existing batteries are basically unusable at minus 40 degrees, which cannot meet the needs of special fields.

同时，在高温下，电池充放电过程中也会产生热量，导致电池本身温度过高，存在安全隐患。At the same time, at high temperature, heat will be generated during the charging and discharging process of the battery, which will cause the temperature of the battery itself to be too high, posing a safety hazard.

发明内容Contents of the invention

为了克服上述现有技术的缺点与不足，本发明的首要目的在于提供一种电池极片。In order to overcome the above-mentioned shortcomings and deficiencies of the prior art, the primary purpose of the present invention is to provide a battery pole piece.

本发明另一目的在于提供上述电池极片的制备方法。Another object of the present invention is to provide a method for preparing the above-mentioned battery pole piece.

本发明再一目的在于提供一种包括上述电池极片的二次电池。Another object of the present invention is to provide a secondary battery comprising the above-mentioned battery pole piece.

本发明的目的通过下述方案实现：The object of the present invention is achieved through the following solutions:

一种电池极片，其包括集流体、活性材料、粘结剂、导电剂以及用以提高电池高、低温性能的添加剂，其中添加剂为相变材料；A battery pole piece, which includes a current collector, an active material, a binder, a conductive agent, and an additive for improving the high and low temperature performance of the battery, wherein the additive is a phase change material;

所述的相变材料可为石蜡；The phase change material can be paraffin;

所述的添加剂的用量满足添加剂的重量为活性材料重量的0.1～10％；The amount of the additive is such that the weight of the additive is 0.1-10% of the weight of the active material;

优选的，所述的添加剂的用量满足添加剂的重量为活性材料重量的5～10％；Preferably, the amount of the additive is such that the weight of the additive is 5-10% of the weight of the active material;

所述的电池极片中的集流体、活性材料、粘结剂及以及导电剂均为二次电池中常规使用的集流体、活性材料、粘结剂及以及导电剂。The current collectors, active materials, binders and conductive agents in the battery pole pieces are the current collectors, active materials, binders and conductive agents commonly used in secondary batteries.

所述的电池极片可为电池正极极片或电池负极极片；The battery pole piece can be a battery positive pole piece or a battery negative pole piece;

当所述的电池极片为锂离子电池的正极极片时，所述的活性材料为钴酸锂、三元材料、锰酸锂、磷酸铁锂中的至少一种，所述的集流体为铝箔或钛箔，所述的粘结剂为PVDF，所述的导电剂为导电石墨、碳纳米管中的至少一种，所述的正极活性物质：导电剂：粘结剂＝100:2.5:5(重量比)；当所述的电池极片为锂离子电池的负极极片时，所述的活性材料为石墨、硬碳中的至少一种，所述的集流体为铜箔，所述的粘结剂为CMC、HPMC、PVA中的至少一种，所述的导电剂为导电石墨、碳纳米管中的至少一种，所述的负极活性物质：导电剂：粘结剂＝100:1:1.5(重量比)。When the battery pole piece is a positive pole piece of a lithium ion battery, the active material is at least one of lithium cobalt oxide, ternary material, lithium manganate, and lithium iron phosphate, and the current collector is Aluminum foil or titanium foil, described binding agent is PVDF, described conductive agent is at least one in conductive graphite, carbon nanotube, described positive electrode active material: conductive agent: binding agent=100:2.5: 5 (weight ratio); when the battery pole piece is a negative pole piece of a lithium-ion battery, the active material is at least one of graphite and hard carbon, the current collector is copper foil, and the The binder is at least one of CMC, HPMC, PVA, and the conductive agent is at least one of conductive graphite, carbon nanotubes, and the negative electrode active material: conductive agent: binder=100: 1:1.5 (weight ratio).

当所述的电池极片为镍镉电池的正极极片时，所述的活性材料为氢氧化镍，所述的集流体为发泡镍，所述的粘结剂为CMC、HPMC、PVA中的至少一种，所述的导电剂为氧化亚钴、镍粉、石墨中的至少一种，所述的正极活性物质:导电剂:粘结剂＝100:5:0.5(重量比)；当所述的电池极片为镍镉电池的负极极片时，所述的活性材料为氧化镉、海绵镉中的至少一种，所述的集流体为钢带，所述的粘结剂为CMC、HPMC、PVA中的至少一种，所述的导电剂为镍粉、导电石墨中的至少一种，所述的负极活性物质:导电剂:粘结剂＝100:1:1(重量比)。When the battery pole piece is a positive pole piece of a nickel-cadmium battery, the active material is nickel hydroxide, the current collector is foamed nickel, and the binder is CMC, HPMC, or PVA. At least one of, the conductive agent is at least one of cobaltous oxide, nickel powder, graphite, the positive electrode active material: conductive agent: binding agent=100:5:0.5 (weight ratio); when When the battery pole piece is a negative pole piece of a nickel-cadmium battery, the active material is at least one of cadmium oxide and sponge cadmium, the current collector is a steel strip, and the binder is CMC , HPMC, PVA at least one, described conductive agent is at least one in nickel powder, conductive graphite, described negative electrode active material: conductive agent: binding agent=100:1:1 (weight ratio) .

当所述的电池极片为镍氢电池的正极极片时，所述的活性材料为氢氧化镍，所述的集流体为发泡镍，所述的粘结剂为CMC、HPMC、PVA中的至少一种，所述的导电剂为氧化亚钴、镍粉、石墨中的至少一种，所述的正极活性物质:导电剂:粘结剂＝100:5:0.5(重量比)；当所述的电池极片为镍氢电池的负极极片时，所述的活性材料为储氢合金，所述的集流体为钢带，所述的粘结剂为CMC、HPMC、PVA中的至少一种，所述的导电剂为镍粉、石墨中的至少一种，所述的负极活性物质:导电剂:粘结剂＝100:1:1(重量比)。When the battery pole piece is a positive pole piece of a nickel-hydrogen battery, the active material is nickel hydroxide, the current collector is foamed nickel, and the binder is CMC, HPMC, or PVA. At least one of, the conductive agent is at least one of cobaltous oxide, nickel powder, graphite, the positive electrode active material: conductive agent: binding agent=100:5:0.5 (weight ratio); when When the battery pole piece is a negative pole piece of a nickel-hydrogen battery, the active material is a hydrogen storage alloy, the current collector is a steel strip, and the binder is at least one of CMC, HPMC, and PVA. One, the conductive agent is at least one of nickel powder and graphite, the negative electrode active material: conductive agent: binder = 100:1:1 (weight ratio).

一种上述电池极片的制备方法，包括以下步骤：A method for preparing the above-mentioned battery pole piece, comprising the following steps:

将活性材料、导电剂、粘结剂以及添加剂加入溶剂中充分搅拌分散，得到浆料；将所得浆料涂覆在集流体上并烘干，然后经过辊压操作和真空干燥，即得所述电池极片。The active material, conductive agent, binder and additives are added to the solvent to fully stir and disperse to obtain a slurry; the obtained slurry is coated on a current collector and dried, and then subjected to roll pressing and vacuum drying to obtain the described Battery pole piece.

所述的溶剂为水、N-甲基吡咯烷酮(NMP)中的至少一种；其中溶剂的用量满足活性材料和溶剂的重量比为100:30～50；The solvent is at least one of water and N-methylpyrrolidone (NMP); wherein the amount of the solvent satisfies the weight ratio of the active material to the solvent is 100:30-50;

上述的电池极片在制备二次电池，尤其是在制备锂离子电池、镍镉电池或镍氢电池中的应用。The application of the above-mentioned battery pole piece in the preparation of secondary batteries, especially in the preparation of lithium-ion batteries, nickel-cadmium batteries or nickel-hydrogen batteries.

一种二次电池，其包括上述的电池正极极片和电池极片中的至少一种。A secondary battery includes at least one of the above-mentioned battery positive pole piece and battery pole piece.

本发明相对于现有技术，具有如下的优点及有益效果：Compared with the prior art, the present invention has the following advantages and beneficial effects:

本发明的电池正负极的配方中添加0.1～10％(相对于正、负极活性物质的重量)的相变材料(如石蜡等)，制成电池后，当电池处于低温下时，因相变材料在低温下能保持温度不变的情况下放出热量，电芯内部的温度不会迅速冷却到外边环境温度，放电时，电芯内部产生的热量被保存在电芯内部，这样提高电池在低温的放电性能；同样，当环境温度升高时，相变材料能够吸收热量并保持本身温度恒定，使电池在高温下放电，不会因为温度升支过高而发生安全事故；因此能同时改善电池高低温性能。Add 0.1～10% (relative to the weight of positive and negative electrode active materials) phase change material (such as paraffin etc.) in the prescription of positive and negative electrode of battery of the present invention, after making battery, when battery is at low temperature, due to phase change material The variable material can release heat while keeping the temperature constant at low temperature. The temperature inside the cell will not cool down to the ambient temperature quickly. When discharging, the heat generated inside the cell is stored inside the cell, which improves the battery life. Low temperature discharge performance; similarly, when the ambient temperature rises, the phase change material can absorb heat and keep its own temperature constant, so that the battery can be discharged at high temperature without safety accidents due to excessive temperature rise; therefore, it can simultaneously improve Battery high and low temperature performance.

具体实施方式Detailed ways

下面结合实施例对本发明作进一步详细的描述，但本发明的实施方式不限于此。The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

实施例中所用试剂如无特殊说明均可从市场常规购得。The reagents used in the examples can be routinely purchased from the market unless otherwise specified.

实施例1Example 1

向锂离子电池的正极和负极的配方中分别添加0.1％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，然后制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；Add 0.1% (relative to the weight of positive and negative active materials) paraffin to the formula of positive pole and negative pole of lithium-ion battery respectively, obtain positive pole piece and negative pole piece, make battery then, wherein separator is cergard 23 model, electrolysis Liquid is 1mol/L lithium hexafluorophosphate organic solution;

锂离子电池正极配方为：正极活性物质(钴酸锂)：导电剂(导电石墨)：粘结剂(PVDF):溶剂(NMP)＝100:2.5:5:50(重量比)；The lithium-ion battery positive electrode formula is: positive electrode active material (lithium cobaltate): conductive agent (conductive graphite): binder (PVDF): solvent (NMP)=100:2.5:5:50 (weight ratio);

锂离子电池负极配方为：活性物质(石墨)：导电剂(导电石墨):粘结剂(CMC):溶剂(水)＝100:1:1.5:50(重量比)；Lithium-ion battery negative electrode formula is: active material (graphite): conductive agent (conductive graphite): binder (CMC): solvent (water)=100:1:1.5:50 (weight ratio);

实施例2Example 2

向锂离子电池的正极和负极的配方中分别添加1％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，然后制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；锂离子电池正负极的配方与实施例1中一致。Add 1% (relative to the weight of the positive and negative active material) paraffin to the formula of the positive pole and the negative pole of the lithium-ion battery respectively to obtain the positive pole piece and the negative pole piece, and then make the battery, wherein the separator is a cergard 23 model, electrolyzed Liquid is 1mol/L lithium hexafluorophosphate organic solution;

实施例3Example 3

向锂离子电池的正极和负极的配方中分别添加3％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，然后制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；锂离子电池正负极的配方与实施例1中一致。Add 3% (relative to the weight of positive and negative active materials) paraffin wax respectively in the formula of positive pole and negative pole of lithium-ion battery, obtain positive pole piece and negative pole piece, make battery then, wherein separator is cergard 23 model, electrolysis Liquid is 1mol/L lithium hexafluorophosphate organic solution;

实施例4Example 4

向锂离子电池的正极和负极的配方中分别添加5％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，然后制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；锂离子电池正负极的配方与实施例1中一致。Add 5% (relative to the weight of positive and negative active materials) paraffin wax respectively in the formula of positive pole and negative pole of lithium-ion battery, obtain positive pole piece and negative pole piece, make battery then, wherein separator is cergard 23 model, electrolysis Liquid is 1mol/L lithium hexafluorophosphate organic solution;

实施例5Example 5

向锂离子电池的正极和负极的配方中分别添加7％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，然后制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；锂离子电池正负极的配方与实施例1中一致。Add 7% (relative to the weight of positive and negative active materials) paraffin wax respectively in the formula of positive pole and negative pole of lithium-ion battery, obtain positive pole piece and negative pole piece, make battery then, wherein separator is cergard 23 model, electrolysis Liquid is 1mol/L lithium hexafluorophosphate organic solution;

实施例6Example 6

向锂离子电池的正极和负极的配方中分别添加10％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，然后制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；锂离子电池正负极的配方与实施例1中一致。Add 10% (relative to the weight of positive and negative active materials) paraffin to the formula of the positive pole and the negative pole of the lithium-ion battery respectively to obtain the positive pole piece and the negative pole piece, and then make the battery, wherein the diaphragm is a cergard 23 model, electrolytic Liquid is 1mol/L lithium hexafluorophosphate organic solution;

实施例7Example 7

向镍氢电池的正极和负极的配方中分别添加0.1％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，然后制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；Add 0.1% (relative to the weight of positive and negative active materials) paraffin respectively in the formula of positive pole and negative pole of nickel-hydrogen battery, obtain positive pole piece and negative pole piece, make battery then, wherein separator is cergard 23 model, electrolysis Liquid is 1mol/L lithium hexafluorophosphate organic solution;

镍氢电池正极配方为：正极活性物质(氢氧化镍)：导电剂(氧化亚钴)：粘结剂(CMC):溶剂(水)＝100:5:0.5:50(重量比)；The positive electrode formula of the nickel-metal hydride battery is: positive electrode active material (nickel hydroxide): conductive agent (cobaltous oxide): binder (CMC): solvent (water) = 100:5:0.5:50 (weight ratio);

镍氢电池负极配方为：负极活性物质(储氢合金):导电剂(石墨):粘结剂(CMC):溶剂(水)＝100:1:1:30(重量比)。The negative electrode formula of the Ni-MH battery is: negative electrode active material (hydrogen storage alloy): conductive agent (graphite): binder (CMC): solvent (water) = 100:1:1:30 (weight ratio).

实施例8Example 8

向镍氢电池的正极和负极的配方中分别添加1％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；镍氢电池正负极的配方与实施例7中一致。Add 1% (relative to the weight of the positive and negative active materials) paraffin wax respectively in the formula of the positive electrode and the negative electrode of the nickel-hydrogen battery to obtain the positive electrode sheet and the negative electrode sheet, and make the battery, wherein the separator is a cergard 23 model, and the electrolyte It is a 1mol/L lithium hexafluorophosphate organic solution; the formula of the positive and negative electrodes of the nickel-metal hydride battery is consistent with that in Example 7.

实施例9Example 9

向镍氢电池的正极和负极的配方中分别添加3％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；镍氢电池正负极的配方与实施例7中一致。Add 3% (relative to the weight of the positive and negative active material) paraffin wax respectively in the formula of the positive electrode and the negative electrode of the nickel-metal hydride battery to obtain the positive electrode sheet and the negative electrode sheet, and make the battery, wherein the separator is a cergard 23 model, and the electrolyte It is a 1mol/L lithium hexafluorophosphate organic solution; the formula of the positive and negative electrodes of the nickel-metal hydride battery is consistent with that in Example 7.

实施例10Example 10

向镍氢电池的正极和负极的配方中分别添加5％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；镍氢电池正负极的配方与实施例7中一致。Add 5% (relative to the weight of the positive and negative active material) paraffin wax respectively in the formula of the positive electrode and the negative electrode of the nickel-hydrogen battery to obtain the positive electrode sheet and the negative electrode sheet, and make the battery, wherein the separator is a cergard 23 model, and the electrolyte It is a 1mol/L lithium hexafluorophosphate organic solution; the formula of the positive and negative electrodes of the nickel-metal hydride battery is consistent with that in Example 7.

实施例11Example 11

向镍氢电池的正极和负极的配方中分别添加7％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；镍氢电池正负极的配方与实施例7中一致。Add 7% (relative to the weight of the positive and negative active material) paraffin wax respectively in the formula of the positive electrode and the negative electrode of the nickel-metal hydride battery to obtain the positive electrode sheet and the negative electrode sheet, and make the battery, wherein the separator is a cergard 23 model, and the electrolyte It is a 1mol/L lithium hexafluorophosphate organic solution; the formula of the positive and negative electrodes of the nickel-metal hydride battery is consistent with that in Example 7.

实施例12Example 12

向镍氢电池的正极和负极的配方中分别添加10％(相对于正、负极活性物质的重量)石蜡，得到正极极片和负极极片，制成电池，其中隔膜为cergard 23型号，电解液为1mol/L的六氟磷酸锂有机溶液；镍氢电池正负极的配方与实施例7中一致。Add 10% (relative to the weight of positive and negative active materials) paraffin wax respectively in the formula of the positive electrode and the negative electrode of the nickel-metal hydride battery to obtain the positive electrode sheet and the negative electrode sheet, and make the battery, wherein the separator is a cergard 23 model, and the electrolyte It is a 1mol/L lithium hexafluorophosphate organic solution; the formula of the positive and negative electrodes of the nickel-metal hydride battery is consistent with that in Example 7.

对比例1：Comparative example 1:

与实施例1的区别在于正、负极中均不添加相变材料石蜡，其余均与实施例1一致。The difference from Example 1 is that no phase-change material paraffin is added to the positive and negative electrodes, and the rest are consistent with Example 1.

对比例2Comparative example 2

与实施例7的区别在于正、负极均不添加相变材料石蜡，其余均与实施例7一致。The difference from Example 7 is that no phase-change material paraffin is added to the positive and negative electrodes, and the rest are consistent with Example 7.

对比例3Comparative example 3

将实施例1中正极和负极的配方中石蜡的添加量均改为0.09％，其他同实施例1；The amount of paraffin added in the formula of the positive pole and the negative pole in Example 1 is changed to 0.09%, and the others are the same as in Example 1;

对比例4Comparative example 4

将实施例1中正极和负极的配方中石蜡的添加量均改为10.1％，其他同实施例1；The amount of paraffin added in the formula of the positive pole and the negative pole in Example 1 is changed to 10.1%, and the others are the same as in Example 1;

对比例5Comparative example 5

将实施例1中正极和负极的配方中石蜡的添加量均改为11％，其他同实施例1；The amount of paraffin added in the formula of the positive pole and the negative pole in Example 1 is changed to 11%, and the others are the same as in Example 1;

对比例6Comparative example 6

将实施例7中正极和负极的配方中石蜡的添加量均改为0.09％，其他同实施例7；The amount of paraffin added in the formula of the positive electrode and the negative electrode in Example 7 is changed to 0.09%, and the others are the same as in Example 7;

对比例7Comparative example 7

将实施例7中正极和负极的配方中石蜡的添加量均改为10.1％，其他同实施例7；The amount of paraffin added in the formula of the positive electrode and the negative electrode in Example 7 is changed to 10.1%, and the others are the same as in Example 7;

对比例8Comparative example 8

将实施例7中正极和负极的配方中石蜡的添加量均改为11％，其他同实施例7；The addition amount of paraffin in the formula of positive pole and negative pole in embodiment 7 is all changed into 11%, other is the same as embodiment 7;

将以上电池化成(电池封口后，45℃搁置8小时，0.05C充电8小时，再45度搁置16小时)，进行测试；Form the above battery (after sealing the battery, leave it at 45°C for 8 hours, charge it at 0.05°C for 8 hours, then leave it at 45°C for 16 hours), and test it;

针对锂离子电池：将锂离子电池在常温搁置24h，然后0.5C放电至2.5V，测定常温的放电容量；将锂离子电池在-30℃搁置24h，然后0.5C放电至1.5V，测定-30℃的放电容量；将锂离子电池在50℃搁置24h，然后0.5C放电至2.5V，测定50℃的放电容量；将锂离子电池在50℃搁置24h，然后1C放电至2.5V，测定放电结束时电池的表面温度；For lithium-ion batteries: put the lithium-ion battery at room temperature for 24 hours, then discharge it at 0.5C to 2.5V, and measure the discharge capacity at room temperature; put the lithium-ion battery at -30°C for 24 hours, then discharge it at 0.5C to 1.5V, and measure -30 ℃ discharge capacity; put the lithium-ion battery at 50°C for 24h, then discharge it at 0.5C to 2.5V, and measure the discharge capacity at 50°C; put the lithium-ion battery at 50°C for 24h, then discharge it at 1C to 2.5V, and measure the discharge end When the surface temperature of the battery;

针对镍氢电池，将镍氢电池在常温搁置24h，然后0.5C放电至1.0V，测定常温的放电容量；将镍氢电池在-30℃搁置24h，然后0.5C放电至0.8V，测定-30℃的放电容量；将镍氢电池在50℃搁置24h，然后0.5C放电至1.0V，测定50℃的放电容量；将镍氢电池在50℃搁置24h，然后1C放电至1.0V，测定放电结束时电池的表面温度；For Ni-MH batteries, put the Ni-MH batteries at room temperature for 24 hours, then discharge them at 0.5C to 1.0V, and measure the discharge capacity at room temperature; put the Ni-MH batteries at -30°C for 24 hours, then discharge them at 0.5C to 0.8V, and measure the -30 ℃ discharge capacity; put the Ni-MH battery at 50°C for 24h, then discharge it at 0.5C to 1.0V, and measure the discharge capacity at 50°C; put the Ni-MH battery at 50°C for 24h, then discharge it at 1C to 1.0V, and measure the end of discharge When the surface temperature of the battery;

内阻为常温下测试得到的交流内阻。The internal resistance is the AC internal resistance measured at room temperature.

得到数据如下表1所示：The obtained data are shown in Table 1 below:

表1实施例1～12和对比例1～8制备的电池的性能测试数据Table 1 The performance test data of the batteries prepared in Examples 1-12 and Comparative Examples 1-8

从表1中可以看出，通过向电池中添加相变材料，在不明显影响电阻的情况可以明显提高电池的高低温性能。It can be seen from Table 1 that by adding phase change materials to the battery, the high and low temperature performance of the battery can be significantly improved without significantly affecting the resistance.

上述实施例为本发明较佳的实施方式，但本发明的实施方式并不受上述实施例的限制，其他的任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均应为等效的置换方式，都包含在本发明的保护范围之内。The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplifications should be equivalent replacement methods, and all are included in the protection 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 A 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 sheet 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 with capsules containing phase-change materials in its internals
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 with capsules containing phase-change materials in its internals
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 sheet 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 A 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
CN110600707A (en) High-capacity electrode material for high-nitrogen-doped carbon-coated metal sodium sulfide secondary battery and application of high-capacity electrode material
CN107546363B (en) Negative electrode tab and lithium ion battery
CN107658442B (en) Negative plate of hydrogen-nickel secondary battery, preparation method thereof and hydrogen-nickel secondary battery using negative plate
CN105304903A (en) Secondary battery with excellent high-temperature and low-temperature characteristics
CN110783525A (en) Cathode additive for sodium ion battery, battery cathode, sodium ion battery and application
CN108502934A (en) Nanometer sheet sulfide hollow ball and its preparation method and application
CN107086304A (en) Preparation method of transition metal sulfide air cathode material for lithium-air battery
CN112038591A (en) Magnesium-sulfur battery, transition metal sulfide/sulfur composite positive electrode material and composite method
WO2024104006A1 (en) Negative electrode material, negative electrode sheet, and battery
CN116454228A (en) A kind of positive electrode material and its positive electrode sheet, lithium ion battery
CN107611379A (en) A kind of three-dimensional nickel hydroxide-graphene composite material, its preparation method and application
CN115548329A (en) Positive electrode active material and electrochemical device
CN114361457B (en) Negative electrode piece and secondary battery comprising same
CN106848192A (en) Layered porous iron oxide electrode material and preparation method thereof, lithium ion cell electrode piece and preparation method thereof and lithium ion battery
CN105576221B (en) A kind of lithium ion battery negative electrode active material precursor and lithium ion battery negative electrode active material and preparation method thereof
CN107732171A (en) One-dimensional porous carbon coating manganese monoxide combination electrode material and preparation method
CN107731552A (en) A kind of nickel nano wire collector and preparation method thereof
CN104282952A (en) Electrolyte and battery
CN108364806A (en) A kind of tree-shaped three-dimensional structure metal material and preparation method thereof and application in the battery
CN108183216A (en) A kind of carbon coating lithium-rich manganese-based anode material and preparation method thereof and lithium ion battery
CN116014072A (en) Battery cell
CN103427119B (en) Battery with a battery cell
CN106744916A (en) A kind of method of modifying of high rate lithium ionic cell cathode material
CN106299246A (en) Metal secondary batteries composite negative pole and application thereof

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20190917