US 11,876,253 B2
Alkali dry battery comprising electrolyte including sulfonyl group-containing anion
Takayuki Nakatsutsumi, Osaka (JP); Yasuyuki Kusumoto, Hyogo (JP); Yasufumi Takahashi, Hyogo (JP); and Atsushi Fukui, Hyogo (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/427,860
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Oct. 25, 2019, PCT No. PCT/JP2019/042043
§ 371(c)(1), (2) Date Aug. 2, 2021,
PCT Pub. No. WO2020/166138, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 2019-023833 (JP), filed on Feb. 13, 2019.
Prior Publication US 2022/0115676 A1, Apr. 14, 2022
Int. Cl. H01M 6/06 (2006.01); H01M 4/24 (2006.01); H01M 10/26 (2006.01)
CPC H01M 6/06 (2013.01) [H01M 4/244 (2013.01); H01M 10/26 (2013.01); H01M 2300/0014 (2013.01)] 3 Claims
OG exemplary drawing
 
1. An alkaline dry battery, comprising:
a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and an alkaline electrolyte,
the positive electrode including a manganese dioxide,
the negative electrode including zinc and/or a zinc alloy,
the alkaline electrolyte including at least one sulfonyl group-containing anion selected from the group consisting of a bis(perfluoroalkylsulfonyl)imide anion, a bis(fluorosulfonyl)imide anion, and a fluorosulfonate anion,
wherein the alkaline electrolyte contains substantially no low-molecular weight organic compound having a molecular weight of 120 g/mol or less.