At present, the global energy storage technology has entered the high-speed development stage, pumped storage, compressed air, flywheel energy storage, lithium-ion batteries, lead-acid batteries, liquid batteries, super capacitors and other energy storage technologies have been market-proven. Among them, lithium-ion batteries, lead carbon batteries, liquid batteries, sodium sulfur batteries, supercritical compressed air storage, super capacitor and other mainstream energy storage technology costs have been significantly reduced.

    Recently, the State has introduced a number of energy planning policies, including the "13th Five-Year Plan", "Energy Development Strategy Action Plan (2014-2020)", "Energy Technology Revolution Innovation Action Plan (2016-2030)", Thirteen five "planning, renewable energy" thirteen five "plan, will be energy storage as one of the key research and development areas. The National Energy Board, the National Development and Reform Commission, Ministry of Industry and other ministries and commissions level issued "on the promotion of electric energy to participate in the" three North "area of ​​power compensation service compensation (market) mechanism pilot work notice", "on the promotion of alternative energy advice" China Manufacturing 2025 - Energy Equipment Implementation Plan "," on the promotion of multi-complementary integrated optimization demonstration project implementation of the views "," on the organization and implementation of the Internet + "intelligent energy (energy Internet) demonstration project notice", "National Electric Power Demonstration Project management approach notice "and other specific implementation views are expected to achieve energy storage costs in the larger application areas and the scope of the sharing, to promote the rapid and healthy development of energy storage industry.

     February 17, the National Energy Board issued "2017 energy work guidance", clearly called for the implementation of "on the promotion of energy storage technology and the healthy development of industry guidance", the establishment of energy storage technology system research and development, comprehensive testing and engineering verification Platform to promote the focus of energy storage technology test demonstration, strengthen the energy storage standard system to promote the application of large-capacity energy storage technology to promote the use of energy users in the trough of the use of energy storage and heat storage, and actively promote the pumped storage power station and storage Power station project construction.

     China through a series of energy storage demonstration project construction, has been initially grasp the energy storage in the power grid peak, FM, industrial energy saving, distributed energy, micro-grid and other systems application technology.

     In 2017, energy storage technology in the new energy micro-network, energy Internet, more complementary, power replacement, standby power, new energy vehicles, optical storage and other applications and application types gradually clear, energy storage applications and application value Increasingly clear.