Title:
偏平型アルカリ一次電池
Document Type and Number:
Japanese Patent JP7049143
Kind Code:
B2
Abstract:
To provide a flat type alkaline primary battery which is high in active material utilization rate and superior in capacity maintainability.SOLUTION: A flat type alkaline primary battery according to the present invention comprises: a bottomed cylindrical positive electrode can; and a negative electrode can with a gasket interposed and fixed inside an opening of the positive electrode can, which forms a housing space between the positive electrode can and itself. The housing space is sealed by providing a crimping part where the opening of the positive electrode can is crimped toward the negative electrode can. A positive electrode, a negative electrode, and a separator are put in the housing space. The positive electrode put in the positive electrode can has a plurality of pellet layers including a silver oxide pellet layer or a manganese dioxide pellet layer. The pellet layer in contact with the separator is a manganese dioxide pellet layer containing no silver oxide. One or each of the other pellet layers is a silver oxide pellet layer.SELECTED DRAWING: Figure 1
Inventors:
Mitsunori Ito
Application Number:
JP2018047781A
Publication Date:
April 06, 2022
Filing Date:
March 15, 2018
Export Citation:
Assignee:
Seiko Instruments Inc.
International Classes:
H01M6/12; H01M4/06
Domestic Patent References:
| JP56143675A | ||||
| JP55100655A |
Attorney, Agent or Firm:
田▲崎▼ 聡
Suzuki Shingo
Kazuzumi Nishizawa
Suzuki Shingo
Kazuzumi Nishizawa
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