US 12,230,793 B2
Negative electrode for nonaqueous electrolyte secondary batteries
Yuta Kuroda, Osaka (JP); and Ryo Kazama, Kanagawa (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/442,051
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Feb. 17, 2020, PCT No. PCT/JP2020/006121
§ 371(c)(1), (2) Date Sep. 22, 2021,
PCT Pub. No. WO2020/195334, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-064823 (JP), filed on Mar. 28, 2019.
Prior Publication US 2022/0190328 A1, Jun. 16, 2022
Int. Cl. H01M 4/38 (2006.01); H01M 4/02 (2006.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/36 (2006.01); H01M 4/583 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 4/386 (2013.01) [H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/583 (2013.01); H01M 4/622 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 2004/027 (2013.01); H01M 2300/0037 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A negative electrode for a non-aqueous electrolyte secondary battery including a negative electrode mixture layer including a negative electrode active material and a negative electrode additive,
the negative electrode active material including a carbon material and a Si-containing material,
a content of the Si-containing material in the negative electrode mixture layer being 1 mass % or more, and
the negative electrode additive including a formaldehyde condensate of an aromatic organic acid having a hydroxyl group and/or a formaldehyde condensate of an aromatic organic acid salt having a hydroxyl group.