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1. WO2020220676 - INORGANIC SULFIDE SOLID ELECTROLYTE HAVING HIGH AIR STABILITY, AND PREPARATION METHOD AND USE THEREOF

Publication Number WO/2020/220676
Publication Date 05.11.2020
International Application No. PCT/CN2019/123481
International Filing Date 06.12.2019
IPC
H01M 10/0562 2010.01
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
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0561the electrolyte being constituted of inorganic materials only
0562Solid materials
CPC
C01G 30/002
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
30Compounds of antimony
002Compounds containing, besides antimony, two or more other elements, with the exception of oxygen or hydrogen
C01G 30/003
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
30Compounds of antimony
002Compounds containing, besides antimony, two or more other elements, with the exception of oxygen or hydrogen
003containing halogen
C01P 2002/72
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2002Crystal-structural characteristics
70defined by measured X-ray, neutron or electron diffraction data
72by d-values or two theta-values, e.g. as X-ray diagram
C01P 2006/40
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2006Physical properties of inorganic compounds
40Electric properties
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
H01M 10/0562
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
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0561the electrolyte being constituted of inorganic materials only
0562Solid materials
Applicants
  • 国联汽车动力电池研究院有限责任公司 CHINA AUTOMOTIVE BATTERY RESEARCH INSTITUTE CO., LTD [CN]/[CN]
  • 西安大略大学 THE UNIVERSITY OF WESTERN ONTARIO [CA]/[CA]
Inventors
  • 孙学良 SUN, Xueliang
  • 梁剑文 LIANG, Jianwen
  • 李晓娜 LI, Xiaona
  • 黄欢 HUANG, Huan
  • 卢世刚 LU, Shigang
  • 张立 ZHANG, Li
  • 赵尚骞 ZHAO, Shangqian
Agents
  • 北京路浩知识产权代理有限公司 CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED
Priority Data
201910358953.830.04.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) INORGANIC SULFIDE SOLID ELECTROLYTE HAVING HIGH AIR STABILITY, AND PREPARATION METHOD AND USE THEREOF
(FR) ÉLECTROLYTE SOLIDE À BASE DE SULFURE INORGANIQUE PRÉSENTANT UNE STABILITÉ À L'AIR ÉLEVÉE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION
(ZH) 高空气稳定性无机硫化物固体电解质及其制备方法与应用
Abstract
(EN)
An inorganic sulfide solid electrolyte having high air stability, and a preparation method and use thereof. In the invention, some or all of P elements in a sulfide electrolyte are replaced with Sb elements, thereby providing an electrolyte having high air stability and ion mobility and applicable to an all-solid lithium secondary battery. The resulting inorganic sulfide electrolyte comprises the following materials: Li 10M(P 1-aSb a) 2S 12, Li 6(P 1-aSb a)S 5X and Li 3(P 1-aSb a)S 4, where M is one or more of Ge, Si or Sn, X is one or more of F, Cl, Br or I, and 0.01 ≤ a ≤ 1.
(FR)
L'invention concerne un électrolyte solide à base de sulfure inorganique ayant une stabilité à l'air élevée, et son procédé de préparation et son utilisation. Dans l'invention, certains ou tous les éléments P dans un électrolyte à base de sulfure sont remplacés par des éléments Sb, ce qui permet d'obtenir un électrolyte ayant une stabilité à l'air élevée et une mobilité ionique élevée et pouvant être appliqué à une batterie secondaire au lithium entièrement solide. L'électrolyte de sulfure inorganique obtenu comprend les matériaux suivants : du Li 10M(P 1-aSb a) 2S 12, du Li 6(P 1-aSb a)S 5X et du Li 3(P 1-aSb a)S 4, où M représente un ou plusieurs élément(s) parmi le Ge, le Si ou le Sn, X représente un ou plusieurs élément(s) parmi le F, le Cl, le Br ou le I, et 0,01 ≤ a ≤ 1.
(ZH)
一种高空气稳定性无机硫化物固体电解质及其制备方法与应用。采用Sb元素取代硫化物电解质中部分或者全部的P元素,从而获得具有更高的空气稳定性以及更高离子迁移率的电解质,可以应用于全固态锂二次电池中。所获得的该类型无机硫化物电解质材料有Li 10M(P 1-aSb a) 2S 12、Li 6(P 1-aSb a)S 5X和Li 3(P 1-aSb a)S 4,其中M为Ge、Si、Sn中的一种或者多种;X为F、Cl、Br、I中的一种或者多种;0.01≤a≤1。
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