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1. CN107925083 - Negative electrode active material and secondary battery comprising same

Office China
Application Number 201780002886.5
Application Date 06.02.2017
Publication Number 107925083
Publication Date 17.04.2018
Publication Kind A
IPC
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
58
of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
583
Carbonaceous material, e.g. graphite-intercalation compounds or CFx
587
for inserting or intercalating light metals
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
133
Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
052
Li-accumulators
H01M 4/587
H01M 4/36
H01M 4/133
H01M 10/052
CPC
C01P 2004/61
H01G 11/24
H01G 11/32
H01G 11/38
H01G 11/50
H01M 4/133
Applicants LG CHEMICAL LTD.
株式会社LG化学
Inventors KIM HYUN-WOOK
金贤煜
KIM JONG-HUN
金钟勋
HONG JANG-HYUK
洪章赫
Agents 中原信达知识产权代理有限责任公司 11219
中原信达知识产权代理有限责任公司 11219
Priority Data 10-2016-0015158 05.02.2016 KR
Title
(EN) Negative electrode active material and secondary battery comprising same
(ZH) 负极活性材料和包含其的二次电池
Abstract
(EN)
Provided are a negative electrode active material and a secondary battery comprising same. The negative electrode active material comprises synthetic graphite having a large particle diameter and natural graphite having a small particle diameter, wherein the average particle diameter ratio of the small particle diameter and large particle diameter is from 1:1.5 to 1:5.

(ZH)
本发明提供负极活性材料及包含其的二次电池。该负极活性材料包含大粒径的合成石墨和小粒径的天然石墨,其中小粒径和大粒径的平均粒径比为1:1.5至1:5。