US 11,942,623 B2
Negative electrode for use in non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery including same
Kiyoshi Tanaami, Saitama (JP); Toshimitsu Tanaka, Saitama (JP); Yuji Isogai, Saitama (JP); Makiko Takahashi, Saitama (JP); Shintaro Aoyagi, Saitama (JP); Takashi Mukai, Osaka (JP); Yuta Ikeuchi, Osaka (JP); Taichi Sakamoto, Osaka (JP); and Naoto Yamashita, Osaka (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Jan. 27, 2022, as Appl. No. 17/585,590.
Claims priority of application No. 2021-014417 (JP), filed on Feb. 1, 2021.
Prior Publication US 2022/0246905 A1, Aug. 4, 2022
Int. Cl. H01M 4/00 (2006.01); H01M 4/134 (2010.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 4/02 (2006.01)
CPC H01M 4/134 (2013.01) [H01M 4/5825 (2013.01); H01M 4/621 (2013.01); H01M 2004/027 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A negative electrode for use in a non-aqueous electrolyte secondary battery, the negative electrode comprising:
a current collector comprising a porous metal body;
a first negative electrode material disposed in pores of the porous metal body and comprising a negative electrode active material, a conductive aid, and a binder, the negative electrode active material comprising a silicon-based material; and
a second negative electrode material disposed in pores of the porous metal body and comprising a skeleton-forming agent comprising a silicate having a siloxane bond,
the negative electrode having:
a pair of first regions each located in each outer portion of the current collector in a thickness direction of the current collector and containing the first negative electrode material and the second negative electrode material; and
a second region located at a center in the thickness direction of the current collector and containing the second negative electrode material but not containing the first negative electrode material.