US 11,929,514 B2
End cap for battery or cylindrical rechargeable cell
Glen R Stevick, Berkeley, CA (US); Philip E. Alei, Carlsbad, CA (US); and Rong Yuan, Richmond, CA (US)
Filed by Glen R Stevick, Berkeley, CA (US); Philip E. Alei, Carlsbad, CA (US); and Rong Yuan, Richmond, CA (US)
Filed on Aug. 7, 2021, as Appl. No. 17/396,680.
Claims priority of provisional application 63/066,090, filed on Aug. 14, 2020.
Prior Publication US 2022/0052405 A1, Feb. 17, 2022
Int. Cl. H01M 50/152 (2021.01); H01M 10/04 (2006.01); H01M 10/0525 (2010.01); H01M 50/559 (2021.01); H01M 50/59 (2021.01)
CPC H01M 50/152 (2021.01) [H01M 10/0422 (2013.01); H01M 10/0525 (2013.01); H01M 50/559 (2021.01); H01M 50/59 (2021.01); H01M 2200/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An end cap covering configured to accept and encompass a positive (+) terminal end of a cylindrical battery or cell, comprising: a ring-shaped end cap which partially covers a top of the battery or cell and extends axially down a side of the battery or cell to a positive cap groove of the battery or cell, the end cap formed with a central opening for access to the positive terminal of the battery or cell, and a circumferential appendage extending radially inward into the positive cap groove such that the end cap is held in place by the circumferential appendage in the positive cap groove.