Title:
COIN SHAPED SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/090800
Kind Code:
A1
Abstract:
This coin shaped battery (1) for soldering using a reflow method comprises a positive electrode (2), a negative electrode (3), an electrolyte layer (4), and an exterior body (5). The exterior body (5) has a sealed space that houses the positive electrode (2), the negative electrode (3), and the electrolyte layer (4). The exterior body (5) comprises a positive electrode can (51), a negative electrode can (52), and a gasket (53). The plate thickness of each of the positive electrode can (51) and the negative electrode can (52) is 0.075 to 0.25 mm, and the plate thickness of the positive electrode can (51) is different from the plate thickness of the negative electrode can (52). This makes it possible to realize a thin, high-performance coin shaped secondary battery (1), for which a decrease in performance due to solder reflow is suppressed.
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Inventors:
YURA YUKINOBU (JP)
MAEDA KAZUKI (JP)
URAKAWA AKIRA (JP)
MAEDA KAZUKI (JP)
URAKAWA AKIRA (JP)
Application Number:
PCT/JP2019/042326
Publication Date:
May 07, 2020
Filing Date:
October 29, 2019
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
H01M4/02; H01M4/13; H01M4/131; H01M10/04; H01M10/0585; H01M50/109; H01M4/485; H01M4/525; H01M50/147
Foreign References:
JP2004327305A | 2004-11-18 | |||
JP2004079356A | 2004-03-11 | |||
JP2000164217A | 2000-06-16 | |||
JP2000048780A | 2000-02-18 |
Attorney, Agent or Firm:
MATSUSAKA, Masahiro et al. (JP)
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