What Is The Difference between energy storage lithium battery pack and power lithium battery?

Energy storage lithium battery: Energy storage mainly refers to the storage of electric energy. Energy storage lithium batteries mainly refer to lithium battery packs used in solar power generation equipment, wind power generation equipment and renewable energy storage energy.

Power lithium battery: Power battery refers to a power battery with a large electric energy capacity and output power. The power battery is a power source that provides power for tools. The power source of energy vehicles is generally based on power batteries.

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

①Battery capacity is different

In the case of new batteries, use a discharge meter to test the battery capacity. Generally, the capacity of the power lithium battery is low; the capacity of the energy storage lithium battery pack is high.

②Different application industries

Power lithium batteries are used in batteries for electric vehicles, electric bicycles, electric motorcycles, electric equipment and tool drive power; used in power transmission substations to provide closing current for power units;

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

③ The BMS location 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; The converter converts it into AC and sends it to the AC grid;

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

④Different types of batteries used

Energy storage Lithium battery energy storage power station for safety and economic considerations, when choosing a lithium battery pack, often choose lithium iron phosphate battery, and some energy storage power stations use lead-acid batteries, lead-carbon batteries;

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

⑤The performance and design are not the same

Power lithium batteries focus more on charging and discharging power, requiring fast charging rate, high output power, and shock resistance, especially emphasizing high safety and high energy density to achieve long-lasting battery life, as well as lightweight requirements in terms of weight and volume ;
The preparation of energy storage lithium batteries emphasizes battery capacity, especially operation stability and service life, and more consideration should be given to the consistency of battery modules. In terms of battery materials, attention should be paid to expansion rate, energy density, and uniformity of electrode material performance, in order to pursue overall storage. Long life and low cost of energy equipment.

⑥Different in nature

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

Ordinary energy storage lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution, which is different from rechargeable lithium-ion batteries and lithium-ion polymer batteries.

Although the power battery and the energy storage lithium battery are both lithium batteries, their properties are completely different. I believe that after reading the above content, you have a deep understanding of the difference between the power battery and the energy storage battery, so that when we use the battery Then you can choose according to your needs.

Post time: Jan-11-2023

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