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ELECTRODE BODY AND MANUFACTURING METHOD FOR THE SAME, AND MANUFACTURING METHOD FOR SECONDARY BATTERY

发明专利审中
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8权利要求 · 1 独立
§ Ⅰ

卷宗概要

发明人

Keisuke KAWASHIMA; Kentaro TSUKAMOTO; Yoshifumi MAGARI

IPC 分类

H1M 4/36H1M 4/2H1M 4/4H1M 10/525H1M 10/587

CPC 分类

H1M4/366H1M4/471H1M10/525H1M10/587H1M2004/27H1M2004/28

In an electrode body disclosed herein, a positive electrode with a band shape and a negative electrode with a band shape are stacked in an insulated state and wound in a longitudinal direction. An average of a central part moisture amount and an end part moisture amount in a winding axis direction is 80 ppm or more and 150 ppm or less and a difference between the central part moisture amount and the end part moisture amount in the winding axis direction is less than ±20 ppm.

原文(中文)

In an electrode body disclosed herein, a positive electrode with a band shape and a negative electrode with a band shape are stacked in an insulated state and wound in a longitudinal direction. An average of a central part moisture amount and an end part moisture amount in a winding axis direction is 80 ppm or more and 150 ppm or less and a difference between the central part moisture amount and the end part moisture amount in the winding axis direction is less than ±20 ppm.