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Title:
SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/006161
Kind Code:
A1
Abstract:
Provided is a secondary battery comprising an electrode assembly including a positive electrode, a negative electrode and a separator disposed therebetween. The positive and negative electrodes of the secondary battery each have: an electrode layer in which an electrode material is formed on a current collector; and a current collection layer at which the current collector is exposed. At least one electrode from between the positive electrode and the negative electrode includes an electrode unit that comprises: multiple electrode layers facing the other electrode; and a connection part that electrically connects the multiple electrode layers. In a cross-sectional view of the secondary battery, the connection part is located on a side of the other electrode. The positive electrode and the negative electrode are configured to collect the current in the current collection layer which is close to the electrode layer.

Inventors:
EGUCHI KENTA (JP)
Application Number:
PCT/JP2020/025909
Publication Date:
January 14, 2021
Filing Date:
July 01, 2020
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01M10/04; H01M10/058
Foreign References:
JP2015118788A2015-06-25
JP2018018663A2018-02-01
JP2019075294A2019-05-16
JP2006032874A2006-02-02
US20110143189A12011-06-16
CN104282948A2015-01-14
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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