Processing

Please wait...

Settings

Settings

Goto Application

1. CN111224078 - 一种硅基复合负极材料及其制备方法、锂离子电池负极

Office China
Application Number 201811425573.3
Application Date 27.11.2018
Publication Number 111224078
Publication Date 02.06.2020
Publication Kind A
IPC
H01M 4/36
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
H01M 4/38
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
38of elements or alloys
H01M 4/583
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
58of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
583Carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/60
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
60of organic compounds
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
B82Y 30/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE  OR TREATMENT OF NANOSTRUCTURES
30Nanotechnology for materials or surface science, e.g. nanocomposites
Applicants 广州汽车集团股份有限公司
Inventors 李进
梅骜
何娜
王群峰
唐道平
焦一峰
Agents 深圳众鼎专利商标代理事务所(普通合伙) 44325
Title
(ZH) 一种硅基复合负极材料及其制备方法、锂离子电池负极
Abstract
(ZH)
本发明属于锂离子电池材料技术领域,具体提供了一种硅基复合负极材料,包括内核、第一壳层和第二壳层,所述第一壳层包覆所述内核,所述第二壳层包覆所述第一壳层;所述内核包括硅碳复合材料;所述第一壳层包括无定形碳层;所述第二壳层包括导电聚合物层。同时,本发明还公开了上述硅基复合负极材料的制备方法和包括上述硅基复合负极材料的锂离子电池。本发明提供的硅基复合负极材料能够有效约束内核的体积膨胀,构建稳定的固液界面,形成稳定的SEI膜,提高锂离子电池的循环稳定性和倍率性能。

Also published as