Alkaline battery and method for producing same
By integrating a zinc oxide-containing layer with controlled zinc oxide content between the negative electrode and separator, the battery addresses non-uniform zinc distribution issues, enhancing discharge efficiency and reducing internal resistance for improved load characteristics.
WO2026141346A1PCT designated stage Publication Date: 2026-07-02MAXELL LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- MAXELL LTD
- Filing Date
- 2025-12-23
- Publication Date
- 2026-07-02
Smart Images
Figure JP2025044946_02072026_PF_FP_ABST
Abstract
Provided are an alkaline battery containing zinc or a zinc alloy as a negative electrode active material and having excellent load characteristics, and a method for producing the alkaline battery. An alkaline battery according to the present invention is characterized by comprising a negative electrode provided with a negative electrode active material layer containing zinc or a zinc alloy as a negative electrode active material, a positive electrode containing silver(I) oxide as a positive electrode active material, and a separator, wherein a zinc oxide-containing layer is provided between the negative electrode active material layer and the separator, and the mass ratio of zinc oxide contained in the zinc oxide-containing layer to the total amount of Zn in the negative electrode active material is 1 to 10 mass%. A method for producing an alkaline battery according to the present invention is characterized by comprising a step for laminating a negative electrode active material layer, a zinc oxide-containing layer containing zinc oxide, and a separator, wherein the mass ratio of the zinc oxide contained in the zinc oxide-containing layer to the total amount of Zn in the negative electrode active material is 1 to 10 mass%.
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