To provide a battery pack capable of achieving a small size and light weight, providing desirable mechanical strength and flame retardancy, and enhancing safety in an abnormality, and to provide its manufacturing method.
The battery pack includes: a nonaqueous electrolyte secondary battery formed by packaging a battery element with a film-like battery element outer packaging member; a protection circuit board capable of controlling voltage and current of the nonaqueous electrolyte secondary battery; and a battery outer packaging member packaging the nonaqueous electrolyte secondary battery and the protection circuit board. The battery outer packaging member contains a shape holding polymer and a fire retardant, and the glass transition point by differential scanning calorimetry of the battery outer packaging member is 45-130°C.
COPYRIGHT: (C)2009,JPO&INPIT
Ken Segawa
Shunsuke Saito
| JP2004152655A | ||||
| JP2007323907A | ||||
| JP2002245998A | ||||
| JP2006236735A |
Takuma Sugiura