Patent Number: 8,822,083

Title: Negative electrode for lithium-ion secondary battery and manufacturing process for the same

Abstract: A negative electrode for a lithium-ion secondary battery, has a current collector and an active-material layer bound on a surface of the current collector. The active-material layer includes active materials, binders, conductive additives, and buffer materials. The active materials include Si and/or Sn, and the buffer materials comprise a silicone composite powder in which a spherical silicone-rubber powder is covered with a silicone resin.

Inventors: Miyoshi; Manabu (Kariya, JP), Murase; Hitotoshi (Kariya, JP), Hayashi; Keiichi (Kariya, JP), Suzuki; Shinji (Kariya, JP)

Assignee: Kabushiki Kaisha Toyota Jidoshokki

International Classification: H01M 2/16 (20060101); H01M 4/02 (20060101); B05D 5/12 (20060101); H01M 4/88 (20060101)

Expiration Date: 9/02/12018