To provide a non-aqueous electrolyte secondary battery having an improved high-temperature charging/discharging cycle life and high-temperature storage recovery property.
The non-aqueous electrolyte secondary battery comprises a positive electrode capable of storing/releasing lithium, a negative electrode capable of storing/releasing lithium, a separator, and a non-aqueous electrolyte. The positive electrode contains a chalcogen compound as an active material, the negative electrode contains two or more types of carbonaceous materials and a binding material as a negative electrode material carried on a collector. The non-aqueous electrolyte contains a non-aqueous solvent mainly consisting of γ-butyrolactone. The charging capacity is Pc (mAh/g), surface density is Pp (g/m2). The capacity ratio (Cratio) of the positive electrode to the negative electrode is 0.724-0.914 when Cratio=(Pc×Pp)/(Nc×Np), where charge capacity and surface density of the positive electrode are Pc (mAh/g) and Pp (g/m2), respectively, and those of the negative electrode are Nc (mAh/g) and Np (g/m2), respectively.
| WO/2023/155639 | ANODE-FREE METAL HALIDE BATTERY |
| WO/1985/004988 | RECHARGEABLE ELECTROCHEMICAL DEVICE |
| JPH10302787 | LEAD-ACID BATTERY |
NAKAJIMA TAKAYUKI
MATSUMOTO KOICHI
KAMIBAYASHI SHINICHI
TOSHIBA ELECTRONIC ENG
| JPH09266011A | 1997-10-07 | |||
| JPH0562712A | 1993-03-12 | |||
| JPH04337247A | 1992-11-25 | |||
| JPH06111818A | 1994-04-22 | |||
| JP2000195518A | 2000-07-14 | |||
| JPH11214027A | 1999-08-06 | |||
| JP2000260472A | 2000-09-22 | |||
| JP2000228224A | 2000-08-15 |
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