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1. (CN107925042) Lithium-sulfur battery separation film having composite coating layer including polydopamine, manufacturing method therefor, and lithium-sulfur battery comprising same

Office : China
Application Number: 201780002678.5 Application Date: 16.01.2017
Publication Number: 107925042 Publication Date: 17.04.2018
Publication Kind : A
Prior PCT appl.: Application Number:PCTKR2017000530 ; Publication Number: Click to see the data
IPC:
H01M 2/16
H01M 2/14
H01M 10/052
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2
Constructional details, or processes of manufacture, of the non-active parts
14
Separators; Membranes; Diaphragms; Spacing elements
16
characterised by the material
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2
Constructional details, or processes of manufacture, of the non-active parts
14
Separators; Membranes; Diaphragms; Spacing elements
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
CPC:
H01M 10/052
H01M 2/145
H01M 2/162
H01M 2/1653
H01M 2/166
H01M 2/1686
H01M 4/136
H01M 4/38
H01M 4/382
H01M 4/405
H01M 10/0459
H01M 2004/027
H01M 2004/028
Y02T 10/7011
Applicants: LG CHEMICAL LTD.
株式会社LG化学
KOREA ADVANCED INST SCI & TECH
韩国科学技术院
Inventors: LEE SEONG HO
李昇昊
LEE HAESHIN
李海臣
KIM SUN JIN
金善珍
YANG DOO KYUNG
梁斗景
KWON KI YOUNG
权起暎
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: 10-2016-0010969 28.01.2016 KR
Title: (EN) Lithium-sulfur battery separation film having composite coating layer including polydopamine, manufacturing method therefor, and lithium-sulfur battery comprising same
(ZH) 具有包含聚多巴胺的复合涂层的锂硫电池隔膜、其制造方法及包含其的锂硫电池
Abstract: front page image
(EN) The present invention relates to a lithium-sulfur battery separation film having a composite coating layer including polydopamine, and a manufacturing method therefor and, more specifically, to a lithium-sulfur battery for suppressing elution of lithium polysulfide by applying a composite coating layer including polydopamine and a conductive material to one surface of a separation film. The lithium-sulfur battery according to the present invention prevents elution and diffusion by adsorbing, through a porous structure of the polydopamine, the lithium polysulfide eluted from a cathode, and alsoprovides a reaction site of a cathode active material by providing additional electrical conductivity, thereby improving capacity and lifespan characteristics of the battery.
(ZH) 本发明涉及具有包含聚多巴胺的复合涂层的锂硫电池隔膜及其制造方法,更具体地,涉及通过在隔膜的一个表面上施加包含聚多巴胺和导电材料的复合涂层来抑制多硫化锂的溶出的锂硫电池。根据本发明的锂硫电池通过经由聚多巴胺的多孔结构吸附从正极溶出的多硫化锂来防止溶出和扩散,并且还通过提供额外的导电性而提供正极活性材料的反应位点,从而改善电池的容量和寿命特性。
Also published as:
EP3312906US20180198156JP2018520490WO/2017/131377