| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a battery which has an improved heat radiation property and can demonstrate a high stability even in a case of an internal heat generation due to a misuse. <P>SOLUTION: Inside an outer package member 10 is provided a battery element 20. A side surface of a battery can 11 made of stainless steel or the like of the outer package member 10 is coated with a coating member 18 composed of a thermoplastic sheet such as polypropylene. A side surface of the outer package member 10, namely, 70% or more of an area of the outer surface of the coated member 18 is set to have a radiant ratio of 0.6 or more to improve a heat radiation property by radiation and a temperature rise is prevented to delay starting of a thermorunaway. If necessary, a character or a pattern can be written on the outer surface of the coated member 18. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
