| abstract |
SUMMARY OF THE INVENTION It is an object of the present invention to provide a capacitor having excellent durability at high temperature and high rate cycle. In order to solve the above problem, in the present invention, the battery element 10 includes an anode 410, a cathode 420, and a separator 430 disposed between the anode 410 and the cathode 420 And an inorganic coating layer 440 disposed between the anode 410 and the separator 430. The anode 410 is made of Li a Ni b Co c Mn d O 2 wherein a, b, c and d are numbers satisfying 0? A? 1.2, 0? B? 1, 0.1? C? 0.4, 0? D? d = 1), and the cathode 420 is a negative electrode active material, and includes a hard graphitizable carbon having a D50 particle diameter of 1.0 占 퐉 or more and 6.0 占 퐉 or less. |