| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack capable of appropriately performing visual inspection of the arrangement position of an insulation sheet, and preventing defects in bonding an outer case due to the insulation sheet even without cutting off a tongue piece part, so that improvement in manufacturing efficiency can be expected.SOLUTION: An insulation sheet 500A (500B) disposed on a core pack 2 includes: a body part 51A (51B) disposed over each peripheral surface 200A, 200B and 200C of unit cells 20A, 20B and 20C; a tongue piece part 502A (502B) covering a part of a positive electrode terminal 201A (201C); and a projecting part 504A (504B) extended on the side of a negative electrode terminal 202A (202C) to be disposed on the peripheral surfaces 200A and 200C. |
