SECONDARY BATTERY AND ELECTRONIC APPARATUS

WIPO Patent Application WO/2023/084353

A1

Provided is a flexible secondary battery capable of suppressing deterioration of a positive electrode lead connection part or a negative electrode lead connection part. The secondary battery has a structure in which: a positive electrode lead is connected to a positive electrode current collector exposed part of a first positive electrode and a positive electrode current collector exposed part of a second positive electrode so as to pass through the inside of one of openings provided to a first separator, an opening provided to a first negative electrode, and one of openings provided to a second separator; a negative electrode lead is connected to a negative electrode current collector exposed part of the first negative electrode so as to pass through the inside of another of the openings provided to the first separator; and, further, the negative electrode lead and the negative electrode current collector exposed part of the first negative electrode are connected to a negative electrode current collector exposed part of a second negative electrode so as to pass through the inside of another of the openings provided to the second separator, an opening provided to the first positive electrode, an opening provided to the second positive electrode, and another of openings provided to a third separator.

KURIKI KAZUTAKA (JP)
YONEDA YUMIKO (JP)
SAITO SEIYA (JP)
TAKAHASHI TATSUYOSHI (JP)

PCT/IB2022/060445

May 19, 2023

October 31, 2022

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SEMICONDUCTOR ENERGY LAB (JP)

H01M50/531; H01G11/04; H01G11/26; H01G11/74; H01G11/78; H01G11/82; H01M4/02; H01M4/13; H01M10/04; H01M10/0585; H01M50/105; H01M50/247; H01M50/463; H01M50/547; H01M50/55; H01M10/052; H01M10/0566

JP2016139608A	2016-08-04
JP2017143030A	2017-08-17

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