How to reduce the self-discharge rate of digital lithium battery to improve the usability of digital devices after long-term idleness?
Publish Time: 2024-08-10
The self-discharge phenomenon of digital lithium battery will affect the usability of digital devices after long-term idleness, and reducing its self-discharge rate is the key.
First of all, from the material point of view, the selection of positive and negative electrode materials and electrolytes of the battery has an important influence on the self-discharge rate. The use of electrode materials with higher purity can reduce the side reactions caused by impurities, thereby reducing self-discharge. For example, in the preparation process of positive electrode materials, the synthesis conditions are strictly controlled to improve the crystallinity and purity of the materials. For negative electrode materials, the side reactions between them and electrolytes can be reduced by surface treatment and other methods. For example, a stable protective film is formed on the surface of the negative electrode to prevent excessive reaction between the electrolyte and the negative electrode, reducing the probability of self-discharge.
In terms of battery manufacturing process, optimizing environmental control and process parameters in the production process can also help reduce the self-discharge rate. Keep the production environment dry and clean to avoid moisture and impurities from mixing into the battery. In the battery assembly process, accurately control the coating thickness and uniformity of the electrode, as well as the compaction density of the pole piece and other parameters. Appropriate compaction density can ensure the stability of the internal structure of the electrode, reduce the micro-short circuit phenomenon inside the electrode, and thus reduce self-discharge.
The storage conditions of the battery also have an impact on the self-discharge rate. When digital devices are idle for a long time, they should be stored in an environment with appropriate temperature and humidity. Generally speaking, lower temperatures can slow down the chemical reaction rate inside the battery and reduce self-discharge. At the same time, avoid exposing the battery to high temperature, high humidity or direct sunlight. For fully charged digital devices, if they are not expected to be used for a long time, the battery power can be kept at a moderate level (generally around 40% - 60%), because too high or too low power status may lead to faster self-discharge. By taking measures from multiple aspects such as material selection, manufacturing process optimization and reasonable storage, the self-discharge rate of digital lithium batteries can be effectively reduced, the usability of digital devices after long-term idleness can be improved, and the service life of batteries and devices can be extended.
