THIN TYPE BATTERY DEVICE FOR PORTABLE INFORMATION TERMINAL

摘要

PROBLEM TO BE SOLVED: To provide a thin type battery device for a portable information terminal which can warm the thin type battery rapidly even at low temperature without short-circuit of a circuit. SOLUTION: Thin type battery device for a portable information terminal is provided with an approximate rectangular parallelopiped rigid case made of aluminium and a thin type battery to be contained in the case so as to be in contact with an inner surface of the case without a gap. This thin type battery is comprised of a generating element and a bag matter containing the generating element. An elastic sheet matter 5 mainly composed by silicone rubber whose volume specific resistinty is not less than 1010Ω.cm and whose heat conductivity is not less than 0.3 W.m-1. deg.C-1 is mounted on overall surface of this bag matter.