Introduction  Electrochemical power sources （batteries） have shown broad application prospects in the field of energy storage. To make reasonable use of the advantages of batteries， in-depth understanding of batteries is needed.

  Method  Several kinds of the most representative batteries and their technical characteristics were reviewed in this article. Based on the current application status of batteries in the field of energy storage， the problems and propose countermeasures were investigated.

  Result  The applications of batteries in the field of energy storage requires the further development of new dedicated energy storage batteries， the construction of battery management systems， and the design of hybrid energy storage strategies. These long-， medium-， and short-term approaches that combines theory with practice can improve the safety and economy of energy storage by chemical power storage.

  Conclusion  Electrochemical energy storage has broad prospects in the improvement of power quality range from new energy consumption to peak and frequency regulation of the power grid. It is necessary to specifically formulate energy storage solutions according to work requirements in order to maximum the benefits.