The demand for energy in countries around the world continues to increase, but due to the unstable nature of renewable energy, solar photovoltaics, wind turbines, and energy storage equipment must be widely installed. This has become an emerging high-tech industry and has been listed by the government as one of the six core strategic industries. In November 2022, the world's largest single-phase energy storage power station supplied by BYD Energy Storage was successfully put into commercial operation on the west coast of the United States, which became hot news in the industry. The independent energy storage power station is provided by BYD Energy Storage, a 1500V grid-level energy storage product BYD Cube T28, with an energy storage capacity of nearly 1.7GWh. Large-scale enterprises continue to join the energy storage track, and technology is advancing by leaps and bounds. How to develop energy storage systems to higher voltage levels, larger system scales, and higher safety and stability has become the focus of competition among various companies.