Title:
BATTERY ELECTRODE, BATTERY, AND BATTERY ELECTRODE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/026649
Kind Code:
A1
Abstract:
A battery electrode which is one example of an embodiment is provided with a core and an active material layer disposed on the surface of the core. The core has a base part where the core surface is covered by the active material layer and a tab part projecting from the base part. Notches are formed on the core from the base of the tab part to the base part, or at portions where the base part adjoins the tab part. The edge of each notch is formed from a first curve comprising a first arc and either a second curve comprising a second arc having a smaller curvature than the first arc or a straight line. This allows a battery electrode to be provided such that the occurrence of cracks at the base of the tab part of the core and in the vicinity thereof can be sufficiently suppressed.
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Inventors:
TSUSHIMA TATSUYA
SHIOZAKI KATSUYA
IWATA RYOSUKE
KAMIYAMA YUMA
SHIOZAKI KATSUYA
IWATA RYOSUKE
KAMIYAMA YUMA
Application Number:
PCT/JP2019/025282
Publication Date:
February 06, 2020
Filing Date:
June 26, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M4/02; H01M4/04; H01M50/531; H01M4/13; H01M4/139
Domestic Patent References:
| WO2017104956A1 | 2017-06-22 | |||
| WO2017204184A1 | 2017-11-30 | |||
| WO2017204184A1 | 2017-11-30 |
Foreign References:
| JP2014022102A | 2014-02-03 | |||
| JP2001126708A | 2001-05-11 | |||
| JP2013073757A | 2013-04-22 |
Other References:
See also references of EP 3832759A4
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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