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1. (WO2018142670) BATTERY PRODUCTION METHOD, BATTERY AND WINDING DEVICE

Pub. No.:    WO/2018/142670    International Application No.:    PCT/JP2017/036308
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Fri Oct 06 01:59:59 CEST 2017
IPC: H01M 10/0587
H01M 10/04
Applicants: MURATA MANUFACTURING CO., LTD
株式会社村田製作所
Inventors: SHIBATA, Hironori
柴田 弘教
SASAKI, Akira
笹木 旭
HONDA, Takeshi
本田 武
Title: BATTERY PRODUCTION METHOD, BATTERY AND WINDING DEVICE
Abstract:
This battery production method comprises: adsorbing the middle section of one strip-shaped separator via a plurality of hole portions provided on the peripheral surface of a winding core; winding, via the winding core, the band-shaped separator along with band-shaped positive electrode and negative electrode, thereby producing a wound body; releasing the adsorption by the hole portions, and pulling out the winding core from the wound body, thereby producing an electrode body; and housing the electrode body inside the battery container, so as to constitute a battery. The hole portions communicate with the interior of the winding core, which has a hollow structure, and the external diameter of the winding core is 2 mm or smaller.