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US 10,483,594 B2Granted
Positive electrode plates for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary batteries
AssigneesPanasonic Corporation, Sanyo Electric Co., Ltd.
InventorsHiroshi Kawada, Motoharu Saito, Kenichi Hotehama, Yoshinori Aoki
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Abstract
A positive electrode plate (11) includes a current collector (30) and a mixture layer (31) disposed on the current collector (30). The mixture layer (31) has a thin portion (32) with a thickness of less than 200 μm disposed on an inner coil half of the current collector (30) and a thick portion (33) having a larger thickness than the thin portion (32), the thick portion (33) having a yield loop height H measured by a stiffness test of 6 mm<H<15 mm.
Claims9
A positive electrode plate for wound nonaqueous electrolyte secondary batteries, comprising:
- a current collector, and
- a mixture layer disposed on the current collector,
- the mixture layer having a thin portion with a thickness of less than 200 μm disposed on an inner coil half of the current collector and a thick portion having a larger thickness than the thin portion, the thick portion having a yield loop height H measured by a stiffness test of 6 mm<H<15 mm.
Dependencies are inferred from the claim text.