power lithium battery pack and energy storage lithium battery

Time: 2022-07-13 Editor: goginsor.com Tour: 10 Times

　　power lithium battery packand capacity lithium battery? The big difference between power lithium battery pack and capacity lithium battery is that the formula is different and the application field is different.

The difference between power lithium battery pack and capacity lithium battery

The power lithium battery pack refers to the power source that provides the power source for the tool. Now refers to the power of electric cars, electric trains, etc.lithium battery pack.

First, the definition is different.

Lithium batteries for new energy vehicles are all power lithium batteries, which can be divided into three types according to their characteristics: power type, energy type and both power and energy type. Power is the so-called power lithium battery pack. Its main feature is to support high-rate charge and discharge, generally as high as 10C. The main parameter to be considered is the specific function (W/kg). The main characteristic of the energy type is high specific energy (Wh/kg).

For example, the capacity type is a marathon runner. To have endurance means large capacity, and the requirements for large current discharge performance are generally not high; strength is a sprinter, fighting for explosive power, but also endurance, otherwise the capacity is too small to run far.

Power energy lithium battery pack with the emergence of plug-in hybrid vehicles. It requires the battery to store high energy, can support a certain distance of pure electric driving, but also has good power characteristics, so it can enter the hybrid mode when the power is low.

Second, the discharge characteristics are different

The power lithium battery pack is characterized by high current discharge, and the discharge rate is generally above market C, which can achieve instantaneous high current;

Capacity lithium battery is characterized by small current discharge, but large capacity, can be sustained and stable power supply for a long time.

Third, the design direction is different

Capacity lithium batteries and new energy power lithium-ion batteries are not much different in positive and negative materials, electrolytes, and separators. However, compared with power lithium-ion batteries, capacity lithium batteries put safety, cycle performance, and cost in the first place, and do not require good rate performance and temperature performance. Therefore, the requirements of capacity lithium batteries for material indicators and battery material ratios are very different from those of power lithium-ion batteries.

Four. Differences in Application Areas

Power lithium batteries are generally small batteries that provide energy for portable electronic devices. Generally used for electric vehicles, electric trains, electric bicycles, scenic sightseeing cars, balance scooters and other vehicles to provide power.

Capacity lithium batteries are like climbing mountains and require endurance, that is, high capacity is required to maintain low power discharge for a long time. Products with small current discharge but large capacity requirements, such as mobile power supplies, outdoor flashlights, etc.