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1. WO2022009806 - POSITIVE ELECTRODE MATERIAL AND BATTERY

Publication Number WO/2022/009806
Publication Date 13.01.2022
International Application No. PCT/JP2021/025191
International Filing Date 02.07.2021
IPC
H01M 4/131 2010.1
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
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
131Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 2006.1
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 4/62 2006.1
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
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/052 2010.1
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
H01M 10/0562 2010.1
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
H01M 10/052
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
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
H01M 4/131
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
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
131Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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 4/62
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
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
Applicants
  • トヨタ自動車株式会社 TOYOTA JIDOSHA KABUSHIKI KAISHA [JP]/[JP]
  • パナソニックホールディングス株式会社 PANASONIC HOLDINGS CORPORATION [JP]/[JP]
Inventors
  • 杉山 徹 SUGIYAMA, Toru
  • 塩谷 真也 SHIOTANI, Shinya
  • 宇佐美 健 USAMI, Takeshi
  • 宮崎 晃暢 MIYAZAKI, Akinobu
  • 佐々木 出 SASAKI, Izuru
  • 藤ノ木 紀仁 FUJINOKI, Norihito
Agents
  • 青木 篤 AOKI, Atsushi
  • 三橋 真二 MITSUHASHI, Shinji
  • 鶴田 準一 TSURUTA, Junichi
  • 伊藤 公一 ITO, Kimikazu
  • 関根 宣夫 SEKINE, Nobuo
  • 河野 努 KAWANO, Tsutomu
  • 岩田 純 IWATA, Makoto
Priority Data
2020-11789608.07.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) POSITIVE ELECTRODE MATERIAL AND BATTERY
(FR) MATÉRIAU D'ÉLECTRODE POSITIVE ET BATTERIE
(JA) 正極材料及び電池
Abstract
(EN) Disclosed is a positive electrode material in which an increase in calorific value is unlikely to occur when the positive electrode material is exposed to a high temperature. The positive electrode material according to the present disclosure includes a positive electrode active material, a first solid electrolyte, and a second solid electrolyte, wherein the positive electrode active material includes a lithium-containing oxide, the first solid electrolyte includes Li and X as constituent elements and does not include S, the X is at least one element selected from the group consisting of F, Cl, Br and I, the second solid electrolyte includes Li and S as constituent elements, the first solid electrolyte covers at least a part of the surface of the positive electrode active material, the second solid electrolyte contacts the positive electrode active material with the first solid electrolyte interposed therebetween, and the average coating thickness of the first solid electrolyte is 104 nm or more.
(FR) Est divulgué un matériau d'électrode positive dans lequel une augmentation de la valeur calorifique a peu de risque de se produire lorsque le matériau d'électrode positive est exposé à une température élevée. Le matériau d'électrode positive selon la présente divulgation comprend un matériau actif d'électrode positive, un premier électrolyte solide et un second électrolyte solide, le matériau actif d'électrode positive comprenant un oxyde contenant du lithium, le premier électrolyte solide comprenant du Li et X comme éléments constitutifs et ne comprenant pas de S, X représentant au moins un élément choisi dans le groupe constitué par F, Cl, Br et I, le second électrolyte solide comprenant du Li et du S comme éléments constitutifs, le premier électrolyte solide recouvrant au moins une partie de la surface du matériau actif d'électrode positive, le second électrolyte solide mettant en contact le matériau actif d'électrode positive avec le premier électrolyte solide interposé entre ceux-ci, et l'épaisseur de revêtement moyenne du premier électrolyte solide étant supérieure ou égale à 104 nm.
(JA) 高温に晒された場合における発熱量の増加が生じ難い正極材料を開示する。本開示の正極材料は、正極活物質と、第1固体電解質と、第2固体電解質とを含み、前記正極活物質がリチウム含有酸化物を含み、前記第1固体電解質が構成元素としてLi及びXを含み、且つ、Sを含まず、前記XがF、Cl、Br及びIからなる群より選択される少なくとも1つの元素であり、前記第2固体電解質が構成元素としてLi及びSを含み、前記第1固体電解質が前記正極活物質の表面の少なくとも一部を被覆し、前記第2固体電解質が前記第1固体電解質を介して前記正極活物質に接し、前記第1固体電解質の平均被覆厚さが104nm以上である。
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