Positive electrode material, positive electrode, battery, battery pack, electronic device, electric vehicle, electric storage device, and electric power system
A battery includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes Li x Al 2 (OH) 7-y .zH 2 O where 0.9<x<1.1, −0.1<y<0.1, 0≤z<2.1.