| US 7,544,444 B2 | ||
| Alkaline dry battery and method for evaluating separator for use in alkaline dry battery | ||
| Mitsuji Adachi, Suita (Japan); Yasuhiko Shoji, Higashiosaka (Japan); and Seiji Wada, Katano (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Filed on Jun. 28, 2005, as Appl. No. 11/167,430. | ||
| Claims priority of application No. 2004-194395 (JP), filed on Jun. 30, 2004. | ||
| Prior Publication US 2006/0003224 A1, Jan. 05, 2006 | ||
| Int. Cl. H01M 2/14 (2006.01); G01N 3/00 (2006.01) | ||
| U.S. Cl. 429—247 [429/249; 73/838] | 2 Claims |
| 1. An alkaline dry battery comprising: a positive electrode including a positive electrode active material; a negative electrode
including a negative electrode active material; a separator disposed between said positive electrode and said negative electrode;
and an electrolyte solution contained in said positive electrode, said negative electrode, and said separator, wherein
said electrolyte is an alkaline aqueous solution containing 30 to 40% by weight of potassium hydroxide, and
said separator impregnated with said alkaline aqueous solution has a burst index within a range of 2 to 10 kPa/(g/m2).
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