US 11,888,163 B2
Alkaline battery
Takuro Manabe, Tokyo (JP); Yuya Suzuki, Tokyo (JP); and Toshiaki Nakano, Tokyo (JP)
Assigned to FDK CORPORATION, Tokyo (JP)
Filed by FDK CORPORATION, Tokyo (JP)
Filed on Jul. 12, 2021, as Appl. No. 17/372,523.
Application 17/372,523 is a continuation of application No. PCT/JP2019/049668, filed on Dec. 18, 2019.
Claims priority of application No. 2019-004363 (JP), filed on Jan. 15, 2019.
Prior Publication US 2021/0336267 A1, Oct. 28, 2021
Int. Cl. H01M 50/00 (2021.01); H01M 4/62 (2006.01); H01M 50/469 (2021.01); H01M 4/42 (2006.01); H01M 4/50 (2010.01); H01M 6/08 (2006.01)
CPC H01M 4/623 (2013.01) [H01M 4/42 (2013.01); H01M 4/50 (2013.01); H01M 6/08 (2013.01); H01M 50/469 (2021.01)] 1 Claim
OG exemplary drawing
 
1. An alkaline battery comprising:
a bottomed tubular battery can made of metal as a positive electrode current collector;
a positive electrode mixture sealed in the battery can and formed in a cylindrical shape, the positive electrode mixture containing manganese dioxide as a positive electrode active material and containing a binder including fluorine resin, such that the binder is present in an amount of 0.2 wt % or more and 0.8 wt % or less of the positive electrode mixture;
a bottomed tubular separator sealed in the battery can and arranged on an inner peripheral side of the positive electrode mixture;
a gel-form negative electrode mixture sealed in the battery can, arranged inside the separator, containing zinc powder as a negative electrode active material; and
an electrolyte that includes an alkaline aqueous solution, sealed inside the battery can,
wherein the positive electrode mixture further contains 2.39 wt % or more and less than 3.35 wt % water with respect to the positive electrode active material.