Advantages of soft pack lithium batteries

The advantages of soft lithium batteries include good safety performance, light weight, large capacity, low internal resistance and flexible design.

Soft-pack lithium batteries are just liquid lithium-ion batteries with a polymer shell. Structurally, it is packaged in aluminum-plastic film. If there is a safety risk, the soft battery will only swell and crack. As shown in the figure:

The reasons why soft packaging lithium batteries have the above advantages:

1. Soft-packaged lithium batteries, unlike steel and aluminum shell batteries, will explode. The safety performance is therefore good.

2. Soft lithium batteries are 40% lighter than steel-cased lithium batteries of the same capacity and 20% lighter than aluminum-cased batteries, so they are lightweight.res.

3. The capacity of soft-pack lithium batteries is 10-15% higher than that of steel shell batteries of the same size, and 5-10% higher than that of aluminum shell batteries, so it has large capacity.

4. The internal resistance of soft-pack lithium batteries is lower than that of lithium batteries. At present, the internal resistance of domestic soft-pack battery cells can be as low as 35 mΩ, which greatly reduces the resistance. battery self-consumption.

5. The shape of soft-pack lithium batteries can be customized according to customer needs, and new cell models can be developed.

Reference materials

Lithium soft battery Baidu Encyclopedia Baidu Encyclopedia [Citation time 2018-1-16]

Soft case. Depending on ifte official from Ningde Times, we learned that the soft packaging of lithium batteries is customized according to the specific size of the PACK box. The cells are arranged in various battery layouts to fully utilize the internal space of the case. battery box. Because soft battery is a battery in which the positive and negative electrode materials are separated by a membrane or composite membrane to form a foldable and foldable package. Soft batteries have the advantages of small size, high energy density and high flexibility, so they are suitable for applications in electric vehicles and power tools with limited space.

The method of replacing a flexible single-cord lithium battery is as follows:

1. Cut the sealing from the battery compartment, remove the screws securing the hatch cover, and remove the battery.The battery compartment is located at the bottom of the water meter.

2. Press the buckle, remove the connector and disconnect the buckle from the battery. The water meter uses two 3V lithium batteries, model CR123A, connected in series. The battery and the water meter are connected by a snap button.

3. Batteries can be purchased online. Just search for CR123A. The price is around 30-40 yuan. 4. After purchasing a new battery, pay attention to whether the positive and negative poles are the same. those of origin. The battery is the same, mainly depends on the connection cable. If it is correct, simply plug the loop into the water meter loop.