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1. (WO2018179898) SECONDARY CELL

Pub. No.:    WO/2018/179898    International Application No.:    PCT/JP2018/004545
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Sat Feb 10 00:59:59 CET 2018
IPC: H01M 4/13
H01M 4/62
H01M 4/66
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: NAKAYAMA Takahito
中山 貴仁
SHIOZAKI Tomoki
塩崎 朝樹
TAKEZAWA Hideharu
武澤 秀治
FURUSAWA Daisuke
古澤 大輔
OURA Yuji
大浦 勇士
TAKAHASHI Takahiro
高橋 崇寛
Title: SECONDARY CELL
Abstract:
A positive electrode used in a secondary cell that is an example of the present embodiment is provided with a positive electrode collector, an intermediate layer formed on the positive electrode collector, and a positive electrode mixture layer formed on the intermediate layer. The positive electrode mixture layer has a thermally expandable material and a positive electrode active material. The thermally expandable material content of the positive electrode mixture layer is at least 0.1% by mass and less than 5% by mass. The intermediate layer has an insulating inorganic material and a conductive agent. The insulating inorganic material content of the intermediate layer is 80-99% by mass.