Application ScenariosPower BatteriesThe primary mission of power batteries is to provide power for mobile devices, focusing on areas requiring dynamic energy output. Their main application carriers are new energy vehicles, as well as smaller devices such as electric bicycles and power tools. The core requirement in these scenarios is "providing continuous power within limited space."
Energy Storage BatteriesEnergy storage batteries serve fixed scenarios for "energy storage and scheduling," which can be divided into several sub-fields:
Grid Side: Used for peak shaving and valley filling - storing electricity during the day and releasing it at night to balance electricity demand.
Renewable Energy Side: Supporting photovoltaic and wind power projects to store unstable green electricity and address the issue of "wind and solar curtailment."
User Side: Including backup power solutions for industrial and commercial facilities, home energy storage systems, and even emergency power supply for communication base stations.
The core requirement for energy storage batteries is "long-term stable energy storage and discharge," with much less constraint on equipment volume and space compared to power batteries.
Therefore, from an application scenario perspective, the main competitors of power batteries are traditional fossil fuel-powered sources, while the main competitors of energy storage batteries are other energy storage technologies (such as pumped hydro storage and hydrogen energy storage).
Technical RequirementsHigh Energy Density vs. High Cycle Life and Safety
As the "heart" of mobile devices, power batteries primarily pursue high energy density and convenience to achieve longer 续航 (range) and mileage, while ensuring safety. Their design life typically aligns with that of new energy vehicles, around 5-8 years, which is shorter than that of energy storage batteries.
Energy storage batteries, as fixed "energy warehouses" that do not need to be moved, have lower requirements for energy density. However, due to their need for frequent and long-cycle charging and discharging, they have higher requirements for cycle life, with a design life generally exceeding 10 years. In addition, energy storage systems are usually large-scale and require long-term continuous operation, thus having more stringent requirements for safety and cost control.
