	US 12,444,733 B2
	Negative electrode and secondary battery including the negative electrode
Joo Yul Baek, Daejeon (KR); Hee Won Choi, Daejeon (KR); Yeon Ji Oh, Daejeon (KR); and Chan Ki Park, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/606,282
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed May 29, 2020, PCT No. PCT/KR2020/007029 § 371(c)(1), (2) Date Oct. 25, 2021, PCT Pub. No. WO2020/242257, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 10-2019-0063108 (KR), filed on May 29, 2019.
Prior Publication US 2022/0216461 A1, Jul. 7, 2022
Int. Cl. H01M 4/36 (2006.01); H01M 4/58 (2010.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)

CPC H01M 4/364 (2013.01) [H01M 4/587 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01)]

9 Claims

1. A negative electrode, comprising:

a negative electrode active material layer,

wherein the negative electrode active material layer comprises a negative electrode active material and a conductive agent,

wherein the negative electrode active material comprises carbon-based active material particles comprising natural graphite and an amorphous carbon-based material,

wherein the carbon-based active material particles have a specific surface area of 1.4 m²/g to 2.3 m²/g,

wherein the conductive agent comprises carbon nanotubes having an average length of 1 μm to 12 μm, and

wherein the carbon nanotubes have an average diameter of 1 nm to 8 nm.