US 11,721,830 B2
Putting into service of a lithium ion battery
Severin Larfaillou, Tours (FR); and Delphine Guy-Bouyssou, Luynes (FR)
Assigned to STMicroelectronics (Tours) SAS, Tours (FR)
Filed by STMicroelectronics (Tours) SAS, Tours (FR)
Filed on Oct. 23, 2017, as Appl. No. 15/790,529.
Application 15/790,529 is a division of application No. 14/673,547, filed on Mar. 30, 2015, granted, now 9,799,915.
Claims priority of application No. 1454173 (FR), filed on May 9, 2014.
Prior Publication US 2018/0048019 A1, Feb. 15, 2018
Int. Cl. H01M 10/052 (2010.01); H01M 10/44 (2006.01); H01M 10/0585 (2010.01); H01M 4/38 (2006.01); H01M 4/40 (2006.01); H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/1395 (2010.01); H01M 10/0562 (2010.01)
CPC H01M 10/052 (2013.01) [H01M 4/0445 (2013.01); H01M 4/134 (2013.01); H01M 4/1395 (2013.01); H01M 4/38 (2013.01); H01M 4/405 (2013.01); H01M 10/0562 (2013.01); H01M 10/0585 (2013.01); H01M 10/44 (2013.01); H01M 4/382 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A thin-film lithium ion battery, comprising:
a LiPON-type electrolyte layer;
a copper electrode;
a metal lithium layer between the LiPON-type electrolyte layer and the copper electrode; and
in both a charged state and a discharged state, a plurality of metal lithium pillars spaced apart from one another and each extending from a surface of the copper electrode that contacts the metal lithium layer into the copper electrode, the plurality of metal lithium pillars being formed by:
slowly charging the battery under a constant current for a first time period; and
a homogenous metal lithium layer between the plurality of metal lithium pillars and the electrolyte layer, the homogenous metal lithium layer being formed by:
quickly charging the battery for a second time period after the first time period.