Title:
LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2024/079848
Kind Code:
A1
Abstract:
Provided is a technology that improves the energy density and safety of lithium secondary batteries. This lithium secondary battery comprises: an electrode tab; and a plurality of positive electrode stacks disposed separated from each other in the stacking direction via an interposed negative electrode and separator. Each positive electrode stack has: a current collector that is constituted of an insulating layer sandwiched by conductive layers and that is electrically connected to the electrode tab; and a positive electrode disposed on each side of the current collector. At least one of the current collectors of the plurality of positive electrode stacks is joined to the electrode tab at a position that is different, when viewed from the stacking direction, from at least one other current collector.
Inventors:
OYAMA GOSUKE (JP)
MIYAKE MINORU (JP)
SATO YOSHIKUNI (JP)
FUJIKI SATOSHI (JP)
OGATA KEN (JP)
MIYAKE MINORU (JP)
SATO YOSHIKUNI (JP)
FUJIKI SATOSHI (JP)
OGATA KEN (JP)
Application Number:
PCT/JP2022/038233
Publication Date:
April 18, 2024
Filing Date:
October 13, 2022
Export Citation:
Assignee:
TERAWATT TECH K K (JP)
International Classes:
H01M10/052; H01M4/13; H01M4/66; H01M10/058; H01M10/0583; H01M10/0587; H01M50/533; H01M50/547
Domestic Patent References:
| WO2022038670A1 | 2022-02-24 |
Foreign References:
| JP2018170180A | 2018-11-01 | |||
| JP2013534361A | 2013-09-02 | |||
| JPH11102711A | 1999-04-13 | |||
| JP2010086799A | 2010-04-15 | |||
| JP2013165012A | 2013-08-22 | |||
| JP2018185974A | 2018-11-22 | |||
| JP2012054197A | 2012-03-15 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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