Why do lithium-ion batteries survive lower at low temperatures? Mottcell new energy tells you why

Many friends find that the endurance time of their electric cars or mobile phones is significantly shortened in the winter. After testing, we found that there is no problem with the battery, so what is the reason for the smaller lithium battery life at low temperature?

Shenzhen Mottcell New Energy introduced the reduction in the winter of lithium battery life for the following reasons:

1. At low temperature, the viscosity of the electrolyte increases, or even partially solidifies, leading to a decrease in the conductivity of lithium-ion batteries. This affects the circulation of electrons inside the battery and reduces the electron activity

2 Because the negative electrode of the lithium ion battery cannot provide enough space at low temperature, the lithium crystallizes on the surface and cannot enter the interior, resulting in part of the lithium elements cannot play a role

3. 。Due to the reaction of lithium metal and the electrolyte, the interface thickness of the solid electrolyte increases. The relative internal resistance also increases.

Shenzhen Shanmu New Energy is a high-tech enterprise specializing in the research and development of lithium battery, and has rich technical experience in low-temperature lithium battery and high-temperature lithium battery. Yamamu new Energy improves the battery structure and battery materials, so as to improve the stability of lithium batteries at low temperature.