ACTIVE MATERIAL, ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
FIG4 is an enlarged cross-sectional view of section A of the secondary battery shown in FIG3
The negative electrode 3 includes a negative electrode current collector 3a and a negative electrode active material-containing layer 3b. At the portion of the negative electrode 3 positioned outermost among the wound electrode group 1, the negative electrode active material-containing layer 3b is formed only on an inner surface of the negative electrode current collector 3a, as shown in FIG4. For the other portions of the negative electrode 3, negative electrode active material-containing layers 3b are formed on both of reverse surfaces of the negative electrode current collector 3a.
cross-sectional view
5
positive electrodes positive electrode
100
single-batteries single-battery
2
container member
4
Example Examples
3
Example Examples
32
lid
['10. A secondary battery (100) comprising: a positive electrode (5); a negative electrode (3); and an electrolyte, wherein the negative electrode (3) is the electrode according to claim 8 or']