What is an energy storage lithium battery? Energy storage lithium batteries mainly refer to lithium battery packs used in energy storage power sources, solar power generation equipment, wind power generation equipment and renewable energy storage.What is a power lithium battery? Power battery refers to the power supply that provides a power source for tools, mostly refers to the lithium battery that provides power for electric vehicles, electric trains, electric bicycles, and golf carts, and the power source of new energy vehicles is generally mainly based on power batteries.

What is the difference between energy storage lithium battery and power lithium battery?

1. The battery capacity is different

In the case of new batteries, test the battery capacity with a discharge meter, and the capacity of the general power lithium battery is low; The capacity of the lithium battery pack for energy storage is high.

2. The application industry is different

Power lithium battery is used for electric vehicles, electric bicycles, electric motorcycles, electric equipment and tool driving power batteries; It is used for transmission and substation to provide closing current for power units;

Energy storage lithium battery packs are mainly used in energy storage power stations such as hydropower, thermal power, wind power and solar power stations, peak and frequency regulation power auxiliary services, digital products, power products, medical and security, and UPS power supplies.

3. The position of the BMS of the battery management system is different

In the energy storage system, the energy storage lithium battery only interacts with the energy storage converter at high voltage, and the converter takes power from the AC grid to charge the battery pack; Or the battery pack supplies power to the converter, and the electric energy is converted into AC and sent to the AC grid through the converter;

The BMS of an electric vehicle, at high voltage, has an energy exchange relationship with the motor and the charger; In terms of communication, there is information interaction with the charger in the charging process, and in the whole application process, there is the most detailed information interaction with the vehicle controller.

4. The types of cells used are different

For the sake of safety and economy, lithium iron phosphate batteries are often used when choosing lithium battery packs, and more energy storage power stations use lead-acid batteries and lead-carbon batteries;

The current mainstream battery types for power lithium battery electric vehicles are lithium iron phosphate batteries and ternary lithium batteries.

5. Performance and design are not the same

Power lithium batteries focus more on charging and discharging power, requiring fast charging rate, high output power, vibration resistance, especially emphasizing high safety and high energy density to achieve long-lasting endurance, as well as light weight requirements in terms of weight and volume;

The preparation of energy storage lithium batteries emphasizes the battery capacity, especially the operation stability and service life, and considers the consistency of the battery module, and the battery material should pay attention to the expansion rate and energy density, the uniformity of the electrode material performance, etc., in order to pursue the long life and low cost of the overall energy storage equipment.

6. The nature is different

Power lithium batteries refer to the batteries that provide power for transportation, generally relative to small batteries that provide energy for portable electronic devices;

Ordinary energy storage lithium battery is a kind of primary battery with lithium metal or lithium alloy as the anode material and non-aqueous electrolyte solution, which is different from the rechargeable battery lithium-ion battery and lithium-ion polymer battery. Although power batteries and energy storage lithium batteries are both lithium batteries, their properties are completely different.