Lithium battery energy storage has the advantages of high energy density, long service life, green environmental protection, etc., but there are also some disadvantages, such as high production cost, poor safety performance, and explosion. Therefore, the
Connectors are essential components for series and parallel connection between battery packs. When the battery pack is charged and discharged, the passage of large current will produce a thermal effect on the connector. When the connector temperature rises and exceeds the battery pack temperature, the temperature will spread to the inside of the battery, affecting the stability of the battery. Therefore, it is necessary to make the connector achieve low temperature rise characteristics.
Moderate Operating Temperature
In lithium battery energy storage systems, temperature will directly affect the activity and conductivity of electrode materials, the embedding and de-embedding of lithium ions on electrodes, and the permeability of diaphragms to lithium ions, thereby affecting the electrochemical reactions inside the battery, which is manifested as the temperature sensitivity of power batteries. Within the appropriate operating temperature range, as the temperature rises, the activity of the internal active substances increases, the battery charge and discharge voltage and capacity increase accordingly, the battery internal resistance decreases accordingly, and the discharge efficiency increases accordingly. However, if the temperature is too high, the side reactions inside the battery will consume lithium ions, solvents, and electrolytes, resulting in a decrease in battery performance.
Uniform Temperature DistributionIn addition, if the temperature field inside the battery box is unevenly distributed for a long time, it will also cause uneven performance of each battery module and single battery, especially the battery aging speed distributed in the high temperature area will be significantly faster than the low temperature part. As time goes by, the physical performance differences between different batteries will become more and more obvious, resulting in poor consistency between batteries, or even premature failure, shortening the life of the entire power battery system.
Product Recommendation
Liadoo energy storage connector adopts terminal technology with independent intellectual property rights. The contact surface between the internal terminal and the pin is kept in the optimal area, which effectively reduces the contact resistance, reduces the overcurrent density, and reduces the current temperature rise. In addition, the metal material adopts imported high-purity copper, which has high conductivity and stable overcurrent temperature rise. The plastic material adopts a unique alloy material, which integrates a variety of plastic characteristics, has both high strength and high toughness, has high thermal conductivity, and accelerates heat dissipation; in terms of the connection technology between the internal terminal and the wire nose, the FIRST patented technology is adopted to ensure the reliability of the connection between the two, increase the contact area, and effectively reduce the overcurrent temperature rise. The stable and firm multi-point crimping process effectively reduces the temperature rise at the connection between the wire nose and the wire, and ensures the consistency of the temperature rise. The company's temperature rise test results for connectors of different current levels can be controlled below 35 degrees Celsius.
