US 12,080,857 B2
Systems and methods involving measurement of battery cells
Thierry Dominique Yves Cassagnes, Tournefeuille (FR); Jérôme Dietsch, Lavernose-Lacasse (FR); and Thomas Mallard, Toulouse (FR)
Assigned to NXP USA, Inc., Austin, TX (US)
Filed by NXP USA, INC., Austin, TX (US)
Filed on Sep. 15, 2020, as Appl. No. 17/021,284.
Claims priority of application No. 19306373 (EP), filed on Oct. 23, 2019.
Prior Publication US 2021/0126295 A1, Apr. 29, 2021
Int. Cl. H01M 10/42 (2006.01); H01M 10/04 (2006.01)
CPC H01M 10/4257 (2013.01) [H01M 10/0413 (2013.01); H01M 2010/4271 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A multi-cell battery apparatus comprising:
a plurality of voltage-stacked battery cell circuits, each including
a single battery cell having an upper voltage terminal and a lower voltage terminal, and
a switchable resistive-divider circuit, having an input node disposed between the upper voltage terminal and the lower voltage terminal, to output a controlled-load voltage drop relative to the upper voltage terminal and the lower voltage terminal, wherein the switchable resistive-divider circuit includes two pairs of interconnected resistive-dividers cooperatively arranged to provide the controlled-load voltage drop; and
a control circuit to selectively activate the switchable resistive-divider circuits and, in response to the respective switchable resistive-divider circuits being selectively activated, to measure the controlled-load voltage drops.