Photovoltaic energy storage batteries are the core of photovoltaic energy storage systems and even the key to breaking through the limitation of photovoltaic energy being "available by day but unavailable by night". They undertake the full-chain tasks of storing, distributing and releasing photovoltaic electricity—storing surplus photovoltaic power during the day and discharging electricity at night to ensure continuous and stable power supply. These batteries are suitable for diverse scenarios such as household distributed systems, industrial and commercial projects, and remote off-grid systems, meeting the needs of "self-generation and self-consumption" and "peak shaving and valley filling".

As specialized batteries, they feature long cycle life, high charge-discharge efficiency and reliable safety protection capabilities. Multiple technical routes including lithium-ion batteries can accurately match the requirements of different application scenarios. Under the "dual carbon" goals, the iterative upgrading of their technologies continuously improves the economy and reliability of photovoltaic energy storage systems, driving clean energy to move forward toward becoming a "major energy source". They serve as a bridge connecting sunlight to practical applications, helping to unlock the potential of clean energy and light up a green future.