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Title:
BATTERY MODULE, AND METHOD FOR MANUFACTURING BATTERY MODULE
Document Type and Number:
WIPO Patent Application WO/2019/187043
Kind Code:
A1
Abstract:
[Problem] To provide a battery module capable of reliably applying pressing force to a plate-shaped battery, and a method for manufacturing a battery module. [Solution] This battery module 100 comprises a battery stack 110S for which a plurality of plate-shaped batteries 110 are stacked so that principal surfaces 20 which are the surfaces in the battery thickness direction of the respective plate-shaped batteries oppose each other. The battery module has a frame-shaped protuberant part 31 that is formed on the principal surface of one of the plurality of plate-shaped batteries, the protuberant part 31 projecting in the battery-thickness direction from the principal surface of the plate-shaped battery, and being formed in the shape of a frame that is open in the battery-thickness direction. The battery module has a filler 40 that is filled into a space 32 on the inside of the frame-shaped protuberant part, said space 32 being formed by the frame-shaped protuberant part, the principal surface of one plate-shaped battery, and the principal surface of another plate-shaped battery facing the one plate-shaped battery in the stacking direction. Also, the volume at atmospheric pressure of a filling 0 filled in the frame-shaped protuberant part internal space is greater than the volume of the frame-shaped protuberant part internal space in a state with the battery stack pressurized.

Inventors:
FUKUOKA, Manabu (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
NAKAI, Masayuki (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
TAKAYAMA, Gen (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
MOTOHASHI, Yuta (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
KISHIDA, Fumio (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
NAKAMOTO, Masahiro (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
Application Number:
JP2018/013744
Publication Date:
October 03, 2019
Filing Date:
March 30, 2018
Export Citation:
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Assignee:
ENVISION AESC JAPAN LTD. (10-1, Hironodai 2-chome Zama-sh, Kanagawa 12, 〒2520012, JP)
International Classes:
H01M2/10
Foreign References:
US20150303425A12015-10-22
JP2006147531A2006-06-08
JP2006172994A2006-06-29
JP2014078498A2014-05-01
Attorney, Agent or Firm:
HATTA & ASSOCIATES (Dia Palace Nibancho, 11-9 Nibancho, Chiyoda-k, Tokyo 84, 〒1020084, JP)
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