US 12,438,142 B2
Electrodes and lithium ion cells with high capacity anode materials
Herman A. Lopez, Sunnyvale, CA (US); Yogesh Kumar Anguchamy, Newark, CA (US); Haixia Deng, Fremont, CA (US); Yongbong Han, San Francisco, CA (US); Charan Masarapu, Fremont, CA (US); Subramanian Venkatachalam, Pleasanton, CA (US); and Sujeet Kumar, Newark, CA (US)
Assigned to Ionblox, Inc., Fremont, CA (US)
Filed by Zenlabs Energy, Inc., Fremont, CA (US)
Filed on Mar. 17, 2022, as Appl. No. 17/697,031.
Application 17/697,031 is a continuation of application No. 15/984,642, filed on May 21, 2018, granted, now 11,309,534.
Application 15/984,642 is a continuation of application No. 14/851,405, filed on Sep. 11, 2015, granted, now 10,003,068, issued on Jun. 19, 2018.
Application 14/851,405 is a continuation of application No. 12/938,951, filed on Nov. 3, 2010, granted, now 9,190,694, issued on Nov. 17, 2015.
Claims priority of provisional application 61/257,728, filed on Nov. 3, 2009.
Prior Publication US 2022/0209219 A1, Jun. 30, 2022
Int. Cl. H01M 4/134 (2010.01); C25F 3/12 (2006.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/134 (2013.01) [C25F 3/12 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/364 (2013.01); H01M 4/38 (2013.01); H01M 4/386 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/587 (2013.01); H01M 4/621 (2013.01); H01M 4/622 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2220/30 (2013.01); Y02E 60/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A lithium ion battery comprising a positive electrode comprising a lithium metal oxide, a negative electrode, and a separator between the positive electrode and the negative electrode, wherein the negative electrode comprises silicon-based active material comprising silicon oxide, electrically conductive components, polymer binder and supplemental lithium at an amount corresponding to about 2.5% or more of the negative electrode capacity, wherein the negative electrode has a density of silicon-based active material of about 0.6 g/cm3 or more, can generate a capacity per unit area of about 3.5 mAh/cm2 or more, and the negative electrode has average dry thickness at least 40 microns.