ACTIVE MATERIAL, ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
FIG6 is an enlarged cross-sectional view of section B of the secondary battery shown in FIG5
As shown in FIG6, the electrode group 1 is a stacked electrode group. The stacked electrode group 1 has a structure in which and negative electrodes 3 and positive electrodes 5 are alternately stacked with separator(s) 4 sandwiched therebetween. The negative electrode current collector 3a of each of the negative electrodes 3 includes at one end, a portion 3c where the negative electrode active material-containing layer 3b is not supported on either surface. This portion 3c serves as a negative electrode tab. As shown in FIG6, the portions 3c serving as the negative electrode tabs do not overlap the positive electrodes 5. The plural negative electrode tabs (portions 3c) are electrically connected to the strip-shaped negative electrode terminal 6. A tip of the strip-shaped negative electrode terminal 6 is drawn to the outside from the container member 2.
cross-sectional view
5
positive electrodes positive electrode
100
single-batteries single-battery
2
container member
4
Example Examples
6
≤
33
sheets
3
Example Examples
['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']