Title:
SINTERED NICKEL CATHODE, METHOD OF MANUFACTURING SAME, AND ALKALINE STORAGE BATTERY EMPLOYING THE SINTERED NICKEL CATHODE
Document Type and Number:
WIPO Patent Application WO/2012/014895
Kind Code:
A1
Abstract:
Provided is a sintered nickel cathode, wherein the employment of nickel hydroxide, forming a specific crystalline structure, as a primary active material, expands the range of usability to low-charge regions. In the sintered nickel cathode according to the present invention, a cathode active material, with nickel hydroxide (β-Ni(OH)2) being the primary constituent, is filled by impregnation over a plurality of iterations in a nickel-sintered substrate. The integrated intensity ratio of the peak intensity of the nickel hydroxide (β-Ni(OH)2) in a (001) face to the peak intensity thereof in a (100) face, derived by x-ray diffraction, is greater than or equal to 1.8. The integrated intensity ratio of the peak intensity in the (001) face to the peak intensity in the (100) face of a conventional mode is on the order of 1.5. Employing the mode with the integrated intensity ratio thereof that is greater than or equal to 1.8 allows high-efficiency continuous discharge even in low-charge regions.
Inventors:
HARADA, Yasuyuki (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
原田 育幸 (〒77 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 Osaka, 〒5708677, JP)
KUDO, Yasuhiro (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
工藤 康洋 (〒77 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 Osaka, 〒5708677, JP)
FUJITA, Kenji (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
藤田 顕史 (〒77 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 Osaka, 〒5708677, JP)
原田 育幸 (〒77 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 Osaka, 〒5708677, JP)
KUDO, Yasuhiro (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
工藤 康洋 (〒77 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 Osaka, 〒5708677, JP)
FUJITA, Kenji (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
藤田 顕史 (〒77 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 Osaka, 〒5708677, JP)
Application Number:
JP2011/066970
Publication Date:
February 02, 2012
Filing Date:
July 26, 2011
Export Citation:
Assignee:
SANYO Electric Co., Ltd (5-5 Keihan-Hondori 2-chome, Moriguchi-shi Osaka, 77, 〒5708677, JP)
三洋電機株式会社 (〒77 大阪府守口市京阪本通２丁目５番５号 Osaka, 〒5708677, JP)
HARADA, Yasuyuki (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
原田 育幸 (〒77 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 Osaka, 〒5708677, JP)
KUDO, Yasuhiro (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
工藤 康洋 (〒77 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 Osaka, 〒5708677, JP)
FUJITA, Kenji (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
三洋電機株式会社 (〒77 大阪府守口市京阪本通２丁目５番５号 Osaka, 〒5708677, JP)
HARADA, Yasuyuki (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
原田 育幸 (〒77 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 Osaka, 〒5708677, JP)
KUDO, Yasuhiro (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
工藤 康洋 (〒77 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 Osaka, 〒5708677, JP)
FUJITA, Kenji (5-5, Keihan-Hondori 2-chome, Moriguchi-sh, Osaka 77, 〒5708677, JP)
International Classes:
H01M4/32; H01M4/26; H01M4/52; H01M10/34
Attorney, Agent or Firm:
WIN TECH PATENT OFFICE (6th Fl, Daini Taki Bldg. 4, Kanda Tacho 2-chome, Chiyoda-k, Tokyo 46, 〒1010046, JP)
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