US 9,812,732 B2
Dual storage system and method with lithium ion and lead acid battery cells
Junwei Jiang, Glendale, WI (US); and Bernhard M. Metz, Milwaukee, WI (US)
Assigned to Johnson Controls Technology Company, Holland, MI (US)
Filed by Johnson Controls Technology Company, Holland, MI (US)
Filed on Dec. 13, 2013, as Appl. No. 14/106,663.
Claims priority of provisional application 61/866,786, filed on Aug. 16, 2013.
Prior Publication US 2015/0050527 A1, Feb. 19, 2015
Int. Cl. H01M 10/0525 (2010.01); H01M 10/06 (2006.01); H01M 16/00 (2006.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H01M 10/056 (2010.01); H01M 4/485 (2010.01); H01M 4/40 (2006.01)
CPC H01M 10/0525 (2013.01) [H01M 10/06 (2013.01); H01M 10/425 (2013.01); H01M 10/441 (2013.01); H01M 10/486 (2013.01); H01M 16/00 (2013.01); H01M 4/405 (2013.01); H01M 4/485 (2013.01); H01M 10/056 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01); Y02E 60/122 (2013.01); Y02E 60/126 (2013.01); Y02P 70/54 (2015.11); Y02T 10/7011 (2013.01); Y02T 10/7016 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A battery, comprising:
a plurality of lithium ion battery cells; and
a plurality of lead acid battery cells; and
wherein each individual lithium ion battery cell of the plurality of lithium ion battery cells is electrically coupled in parallel with and substantially voltage matched with a corresponding individual lead acid battery cell of the plurality of lead acid battery cells such that the battery comprises a plurality of lithium ion/lead acid battery cell pairs, and wherein the plurality of lithium ion battery cells as a unit is communicatively coupled to a battery management system, and wherein the battery is configured to undergo charge balancing during operation without the electronic battery management system.