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Patent Searching and Data


Title:
STORAGE BATTERY
Document Type and Number:
WIPO Patent Application WO/2000/033398
Kind Code:
A1
Abstract:
A plurality of unit cells (1a to 1j) are electrically connected by bringing them into contact with the short side of a rectangular battery jar, and binding plates (14) arranged on both long sides are bound by a binding band (13) to join the unit cells integrally to provide a combined battery. The radiation conditions of the unit cells are uniformed to reduce the temperature difference among the unit cells by connecting the generating elements of the unit cells arbitrarily, by interposing heat transfer plates (30) between the unit cells arranged in parallel, or by circulating a coolant through the spaces between the unit cells. As a result, the charging efficiencies, as might otherwise be different according to the temperature conditions, are equalized, and the cell capacities are not different. Therefore no cell over-discharges and the cell lifetimes are prolonged.

Inventors:
Asakawa, Fumihiko
Kimoto, Shinya (Panasonic Ev Energy Co, Ltd. 555 Sakaijuku Kosai-shi, Shizuoka, 431-0452, JP)
Takaki, Mitsugu (Panasonic Ev Energy Co, Ltd. 555 Sakaijuku Kosai-shi, Shizuoka, 431-0452, JP)
Kimura, Kenji (Panasonic Ev Energy Co, Ltd. 555 Sakaijuku Kosai-shi, Shizuoka, 431-0452, JP)
Yokoyama, Toshinobu (Panasonic Ev Energy Co, Ltd. 555 Sakaijuku Kosai-shi, Shizuoka, 431-0452, JP)
Fukuda, Shinsuke (Panasonic Ev Energy Co, Ltd. 555 Sakaijuku Kosai-shi, Shizuoka, 431-0452, JP)
Takahashi, Yasuhiro (Toyota Jidosha Kabushiki Kaisha 1, Toyota-cho Toyota-shi, Aichi, 471-0826, JP)
Katsuta, Toshihiro (Toyota Jidosha Kabushiki Kaisha 1, Toyota-cho Toyota-shi, Aichi, 471-0826, JP)
Application Number:
PCT/JP1999/006671
Publication Date:
June 08, 2000
Filing Date:
November 29, 1999
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1006, Oaza Kadoma Kadoma-shi, Osaka, 571-8501, JP)
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho Toyota-shi, Aichi, Aichi, 471-0826, JP)
Asakawa, Kieko (3-1 Nishi-machi 6-chome Toyota-shi, Aichi, Aichi, 471-0025, JP)
Kimoto, Shinya (Panasonic Ev Energy Co, Ltd. 555 Sakaijuku Kosai-shi, Shizuoka, 431-0452, JP)
Takaki, Mitsugu (Panasonic Ev Energy Co, Ltd. 555 Sakaijuku Kosai-shi, Shizuoka, 431-0452, JP)
Kimura, Kenji (Panasonic Ev Energy Co, Ltd. 555 Sakaijuku Kosai-shi, Shizuoka, 431-0452, JP)
Yokoyama, Toshinobu (Panasonic Ev Energy Co, Ltd. 555 Sakaijuku Kosai-shi, Shizuoka, 431-0452, JP)
Fukuda, Shinsuke (Panasonic Ev Energy Co, Ltd. 555 Sakaijuku Kosai-shi, Shizuoka, 431-0452, JP)
Takahashi, Yasuhiro (Toyota Jidosha Kabushiki Kaisha 1, Toyota-cho Toyota-shi, Aichi, 471-0826, JP)
Katsuta, Toshihiro (Toyota Jidosha Kabushiki Kaisha 1, Toyota-cho Toyota-shi, Aichi, 471-0826, JP)
International Classes:
H01M2/10; H01M2/20; H01M10/60; H01M10/613; H01M10/647; H01M10/6555; H01M10/6557; H01M10/6563; H02J7/04; (IPC1-7): H01M2/10; H01M10/50
Foreign References:
JPH09219181A
JPH0714616A
JPH03109269U
JPH10154494A
JPH09306447A
JPH10106521A
US5766801A
JPS5023619U
JPH0714616A
Other References:
See also references of EP 1143541A1
Attorney, Agent or Firm:
Ishihara, Masaru (Tatsuno Nishi-tenma Building, 5th floor 1-6, Nishi-tenma 3-chome Kita-ku Osaka-shi Osaka, 530-0047, JP)
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