At present, various energy storage methods cannot fully meet the requirements of safety, high specific power, high specific energy, long service life, mature technology, and wide operating temperature range. The development of various energy storage technologies is still very immature, so there is still great research prospects and development space for large-scale application of energy storage technologies in power grids.

(1) Developing fast, efficient, and low-cost energy storage batteries: Currently, high costs are the biggest bottleneck in the large-scale promotion and application of energy storage technology. Improving conversion efficiency and reducing costs are important aspects of energy storage technology research and development.

(2) The comprehensive application of various energy storage technologies: Due to the certain shortcomings or limitations of various energy storage methods, and the inherent characteristics of improving them, it also incurs the cost of implementation difficulty and cost. Therefore, the organic combination of various methods can promote strengths and avoid weaknesses, fully utilize the advantages of various methods, and achieve multiple requirements in terms of energy and power, And it can significantly extend the cycle life of energy storage components, which has become a new hot topic in energy storage research.

(3) Analysis theory and method applied in energy storage system power grid: Based on a full understanding of the dynamic characteristics of energy storage devices in the power grid, study the complex nonlinear electromagnetic problems inside energy storage devices, as well as the mutual use between energy storage devices and components in the system.

(4) Research effective control strategies for energy storage systems: study the comprehensive characteristics, steady-state characteristics, and transient characteristics of energy storage systems and distributed systems, and fully utilize energy storage systems; Improve the sharing of data on traditional power sources, new energy sources, and loads, reasonably arrange charging and discharging times, and improve the utilization efficiency of energy storage systems.