AA LITHIUM PRIMARY BATTERY AND AAA LITHIUM PRIMARY BATTERY
An AA lithium primary battery includes: an electrode group 4 including a positive electrode 1 containing iron sulfide as a positive electrode active material, and a negative electrode 2 containing lithium as a negative electrode active material which are wound with a separator 3 interposed therebetween. Part of the negative electrode 2 facing the positive electrode 1 has a mass of 0.86-1.1 g, a total volume of pores in the separator 3 having a pore size of 0.1-10 μm is 0.25 ml/g or lower, and a Gurley number of the separator 3 is 100-1000 sec/100 ml.
1 . An AA lithium primary battery comprising:
an electrode group including a positive electrode containing iron sulfide as a positive electrode active material, and a negative electrode containing lithium as a negative electrode active material which are wound with a separator interposed therebetween, wherein
part of the negative electrode facing the positive electrode has a mass of 0.86-1.1 g, a total volume of pores in the separator having a pore size of 0.1-10 μm is 0.25 ml/g or lower, and
a Gurley number of the separator is 100-1000 sec/100 ml.
2 . The AA lithium primary battery of claim 1 , wherein
the total volume of the pores in the separator having the pore size of 0.1-10 μm is 0.15 ml/g or lower.
3 . The AA lithium primary battery of claim 1 , wherein
the total volume of the pores in the separator having the pore size of 0.1-10 μm is higher than 0.10 ml/g.
4 . The AA lithium primary battery of claim 1 , wherein
the total volume of the pores in the separator having the pore size of 1-10 μm is 0.07 ml/g or lower.
5 . The AA lithium primary battery of claim 1 , wherein
the positive electrode is located at an outermost periphery of the electrode group.
6 . An AAA lithium primary battery comprising:
an electrode group including a negative electrode containing lithium as a negative electrode active material, and a positive electrode containing iron sulfide as a positive electrode active material which are wound with a separator interposed therebetween, wherein
part of the negative electrode facing the positive electrode has a mass of 0.34-0.45 g,
a Gurley number of the separator is 100-1000 sec/100 ml, and
a total volume of pores in the separator having a pore size of 0.1-10 μm is 0.25 ml/g or lower.
7 . The AAA lithium primary battery of claim 6 , wherein
the total volume of the pores in the separator having the pore size of 0.1-10 μm is 0.18 ml/g or lower.
8 . The AAA lithium primary battery of claim 6 , wherein
the total volume of the pores in the separator having the pore size of 0.1-10 μm is higher than 0.10 ml/g.
9 . The AAA lithium primary battery of claim 6 , wherein
the total volume of the pores in the separator having the pore size of 0.1-10 μm is 0.07 ml/g or lower.
10 . The AAA lithium primary battery of claim 6 , wherein
the positive electrode is located at an outermost periphery of the electrode group.