Title:
SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/044628
Kind Code:
A1
Abstract:
This secondary battery is provided with: a flat and columnar exterior member having a first bottom part and a second bottom part that are opposed to each other; an electrode terminal that is provided to the first bottom part and that is electrically insulated from the first bottom part; a battery element that is housed inside the exterior member and that includes a first electrode and a second electrode wound by being opposed to each other; a first wiring that is connected to the first electrode so as to project toward the first bottom part from the battery element and that is connected to the electrode terminal; and a second wiring that is connected to the second electrode so as to project toward the first bottom part from the battery element and that is connected to the first bottom part. The battery element has a wound center space at the center of windings of the respective first and second electrodes. The second wiring includes a leading end part that is folded in a direction approaching the wound center space and that is connected to the first bottom part.
Inventors:
KATSUMOTO TAICHI (JP)
HORIKOSHI YOSHIICHI (JP)
KAGEYAMA MASAYUKI (JP)
HORIKOSHI YOSHIICHI (JP)
KAGEYAMA MASAYUKI (JP)
Application Number:
PCT/JP2021/027130
Publication Date:
March 03, 2022
Filing Date:
July 20, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01M10/04; H01M10/052; H01M10/0587; H01M50/10; H01M50/147; H01M50/172; H01M50/531; H01M50/543
Foreign References:
| CN109192889A | 2019-01-11 | |||
| CN108232051A | 2018-06-29 | |||
| JP2008262827A | 2008-10-30 | |||
| JP2005268071A | 2005-09-29 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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