Battery

The utility model provides a battery which comprises a shell, a battery cell and a battery cell radiator, the battery cell and the battery cell radiator are located in the shell, the battery cell comprises a first battery cell module and a second battery cell module, the battery cell radiator is located between the first battery cell module and the second battery cell module, and the first side face of the battery cell radiator makes contact with or is connected with the first battery cell module. And the second side surface is contacted or connected with the second battery cell module. According to the battery provided by the invention, heat inside the battery cells is effectively, quickly and timely transferred to the cold ends outside the battery cells with lower thermal resistance, heat dissipation can be timely carried out on the battery cell modules, the heat dissipation capability is improved, the purpose of efficiently dissipating heat of the whole battery cells is achieved, the heat dissipation perfo