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1. WO2022163538 - LITHIUM SECONDARY BATTERY

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Publication Number WO/2022/163538
Publication Date 04.08.2022
International Application No. PCT/JP2022/002255
International Filing Date 21.01.2022
IPC
H01M 4/13 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
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
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 4/13
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
Applicants
  • パナソニックＩＰマネジメント株式会社 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. [JP]/[JP]
Inventors
  • 宮前　亮平 MIYAMAE Ryohei
  • 蚊野　聡 KANO Akira
  • 石井　聖啓 ISHII Kiyohiro
Agents
  • 弁理士法人河崎特許事務所 KAWASAKI & PARTNERS
Priority Data
2021-01376529.01.2021JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) LITHIUM SECONDARY BATTERY
(FR) BATTERIE SECONDAIRE AU LITHIUM
(JA) リチウム二次電池
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Abstract
(EN) This lithium secondary battery comprises: a positive electrode in which lithium ions are occluded during discharging and lithium ions are discharged during charging; a negative electrode in which lithium metal is deposited during charging and lithium metal is dissolved during discharging; and a non-aqueous electrolyte having lithium ion conductivity. The surface of the negative electrode is covered with a protective layer. The protective layer contains a block polymer in which a first polymer portion having a repeating structure of a monomer unit A and a second polymer portion having a repeating structure of a monomer unit B are bonded.
(FR) L'invention concerne une batterie secondaire au lithium comprenant : une électrode positive dans laquelle des ions lithium sont occlus pendant la décharge et les ions lithium sont déchargés pendant la charge; une électrode négative dans laquelle du métal lithium est déposé pendant la charge et le métal lithium est dissous pendant la décharge; et un électrolyte non aqueux ayant une conductivité des ions lithium. La surface de l'électrode négative est recouverte d'une couche de protection. La couche de protection contient un polymère séquencé dans lequel une première partie polymère ayant une structure répétitive d'une unité monomère A et une seconde partie polymère ayant une structure répétitive d'une unité monomère B sont liées.
(JA) リチウム二次電池は、放電時にリチウムイオンを吸蔵し、充電時にリチウムイオンを放出する正極と、充電時にリチウム金属が析出し、放電時にリチウム金属が溶解する負極と、リチウムイオン伝導性を有する非水電解質と、を備える。負極の表面は保護層で覆われており、保護層は、モノマーユニットＡの繰り返し構造を有する第１のポリマー部分と、モノマーユニットＢの繰り返し構造を有する第２のポリマー部分と、が結合したブロックポリマーを含む。
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