US 12,388,085 B2
Electrodes comprising blended active materials
Majid Talebiesfandarani, Emeryville, CA (US); Yumi Kim, San Jose, CA (US); Liyuan Sun, Mountain View, CA (US); Sookyung Jeong, San Jose, CA (US); Soo Kim, Fremont, CA (US); Tae Kyoung Kim, Albany, CA (US); and Ki Tae Park, Santa Clara, CA (US)
Assigned to Rivian IP Holdings, LLC, Irvine, CA (US)
Filed by Rivian IP Holdings, LLC, Plymouth, MI (US)
Filed on Sep. 21, 2022, as Appl. No. 17/950,032.
Prior Publication US 2024/0097128 A1, Mar. 21, 2024
Int. Cl. H01M 4/58 (2010.01); H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/5825 (2013.01) [H01M 4/364 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2220/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrode for a lithium-ion battery comprising a blend of:
a first lithium metal phosphate material comprising a first plurality of primary active material particles having a D50 of from 150 nanometers to 2 microns; and
a second lithium metal phosphate material comprising a second plurality of primary active material particles having a D50 of from 5 to 300 times larger than the first plurality of primary active material particles,
wherein the first lithium metal phosphate material and the second lithium metal phosphate material are independently represented by formula LiMPO4, wherein M is one or more of iron (Fe) or manganese (Mn), and
wherein the first lithium metal phosphate material is blended with the second lithium metal phosphate material at a weight ratio of greater than 1:1.