Invention Grant
- Patent Title: Electrode for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery provided with same
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Application No.: US17493901Application Date: 2021-10-05
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Publication No.: US11978885B2Publication Date: 2024-05-07
- Inventor: Atsushi Ogawa , Toru Sukigara , Hiroto Maeyama , Soshi Kawamura , Kenichi Kobayashi
- Applicant: HONDA MOTOR CO., LTD. , NICHIA CORPORATION
- Applicant Address: JP Tokyo
- Assignee: HONDA MOTOR CO., LTD.,NICHIA CORPORATION
- Current Assignee: HONDA MOTOR CO., LTD.,NICHIA CORPORATION
- Current Assignee Address: JP Tokyo; JP Anan
- Priority: JP 16217973 2016.11.08
- Main IPC: H01M4/131
- IPC: H01M4/131 ; H01M4/02 ; H01M4/36 ; H01M4/505 ; H01M4/525 ; H01M10/0525

Abstract:
An electrode for nonaqueous electrolyte secondary batteries, provided with a collector and a positive electrode active material layer arranged on the collector and contains a positive electrode active material. The positive electrode active material contains compound particles which have a layered structure composed of two or more transition metals, and which have an average particle diameter DSEM of from 1 μm to 7 μm (inclusive) based on the observation with an electron microscope, a ratio of the 50% particle diameter D50 in a volume-based cumulative particle size distribution to the average particle diameter DSEM, namely D50/DSEM of from 1 to 4 (inclusive), and a ratio of the 90% particle diameter D90 in the volume-based cumulative particle size distribution to the 10% particle diameter D10 in the volume-based cumulative particle size distribution, namely D90/D10 of 4 or less. The positive electrode active material layer has a void fraction of 10-45%.
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