What Is The Difference Between A Storage Lithium Battery Pack And A Power Lithium Battery?

With the gradual maturity of lithium battery pack technology and the gradual decline in cost, China's energy storage market and power battery industry are gradually unfolding. In recent years, the energy storage and new energy automobile industry has developed rapidly and entered a rapid growth period. The following sciences are about energy storage lithium batteries and power lithium batteries.

Energy storage lithium battery: Energy storage mainly refers to the storage of electrical energy. The energy storage lithium battery mainly refers to a lithium battery pack used for solar power generation equipment and wind power generation equipment and renewable energy storage energy.

Power lithium battery: Power battery refers to a power source with a large power capacity and output power, and the power battery is a power source for the tool. It refers to a lithium battery that provides power for electric vehicles, electric trains, electric bicycles, and golf carts. The power source of energy vehicles is generally based on power batteries.

1 battery capacity is different

In the case of new batteries, the battery capacity is tested by a discharge meter, and the capacity of the general power lithium battery is about 1000-1500 mAh;

The capacity of the energy storage lithium battery pack is above 2000mAh, and some can reach 3400mAh.

2 different application industries

Power lithium battery is used for electric vehicles, electric bicycles, electric motorcycles, electric equipment and tool drive power batteries; used for power transmission substations, providing switching current for power units;

The energy storage lithium battery pack is mainly used in energy storage power stations such as hydropower, firepower, wind power and solar power stations, peak-adjusting frequency-frequency power auxiliary services, digital products, power products, medical and security, and UPS power supplies.

3 battery management system BMS location 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 power flows through the converter. Transmitter into AC to send to the AC grid;

The BMS of an electric vehicle has an energy exchange relationship with the electric motor and the charger at a high voltage; in communication, there is information exchange with the charging machine during the charging process, and the vehicle controller has the most detailed in all application processes. Information exchange.

4 different types of batteries used

Energy storage lithium battery energy storage power station for safety and economic considerations, when choosing lithium battery packs, lithium iron phosphate batteries are often used, and some 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 different

Power lithium batteries are more focused on charge and discharge power, etc., requiring fast charging rate, high output power, and vibration resistance, especially stressing that high safety and high energy density have achieved long-lasting endurance, as well as lightweight requirements in terms of weight and volume. ;

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

6 different nature

A power lithium battery is a battery that powers a transportation vehicle, generally compared to a small battery that provides energy for a portable electronic device;

A common energy storage lithium battery is a primary battery using a lithium metal or a lithium alloy as a negative electrode material and a nonaqueous electrolyte solution, and a rechargeable lithium ion battery is different from a lithium ion polymer battery.