Nonaqueous secondary battery and electronic equipment using the same
AssigneeHitachi Maxell, Ltd.
InventorsHideo Sakata, Hayato Higuchi, Fusaji Kita
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Abstract
A nonaqueous secondary battery comprising an electrode body which comprises a positive electrode and a negative electrode laminated with a separator interposed between them, and a nonaqueous electrolyte, wherein said negative electrode comprises graphite as a negative electrode active material, and has a coating density of at least 1.70 g/cm3, pore diameter of the maximum of less than 0.5 μm, and the logarithmic value of differential intrusion of at least 0.14 cm3/g at the pore diameter of the maximum.
Claims13
A nonaqueous secondary battery comprising an electrode body which comprises a positive electrode, a negative electrode, a separator laminated between the positive and negative electrodes, and a nonaqueous electrolyte,
- wherein said negative electrode contains graphite as a negative electrode active material, has a dried and pressed coating density of at least 1.70 g/cm3, a pore diameter of the maximum of less than 0.5 μm, and a logarithmic value of differential intrusion of at least 0.14 cm3/g at the pore diameter of the maximum.
Dependencies are inferred from the claim text.