Low-temperature lithium-ion batteries utilize VGCF and activated carbon with a specific surface area of (2000±500) m²/g as additives, along with matching positive and negative electrode materials. A special electrolyte with added additives is injected to ensure the low-temperature discharge capability of the lithium-ion battery. Simultaneously, the volume change rate after being stored at 70℃ for 24 hours is ≤0.5%, exhibiting the safety and storage capabilities of conventional lithium-ion batteries. Applications include: power supplies for equipment, aerospace, deep-sea submersible equipment, polar scientific research and exploration equipment, power supplies for cold-weather rescue and disaster relief, and power supplies for cold-weather clothing, footwear, and lighting.
Low-temperature lithium-ion batteries are classified according to their discharge performance into two types: energy storage type and rate-capacity type. Low-temperature energy storage type lithium-ion batteries are widely used in tablet computers, paratrooper equipment, navigation devices, backup starting power supplies for drones, power supplies for special flight instruments, satellite signal receiving devices, marine data monitoring equipment, atmospheric data monitoring equipment, outdoor video recognition equipment, oil exploration and testing equipment, railway monitoring equipment, outdoor power grid monitoring equipment, warm shoes, and vehicle backup power supplies.
Low-temperature rate lithium-ion batteries are used in infrared laser equipment, high-intensity light weapons, and acoustic weapons. Low-temperature lithium-ion batteries are categorized by application into: low-temperature lithium-ion batteries and industrial low-temperature lithium-ion batteries.
Low-temperature lithium-ion batteries are classified according to their usage environment as follows:
A. -20℃ civilian low-temperature lithium-ion batteries: At -20℃, the battery retains over 90% of its rated capacity during 0.2C discharge; at -30℃, the battery retains over 90% of its rated capacity during 0.2C discharge.
b. -40℃ Special Low-Temperature Lithium-ion Battery: At -40℃, the battery discharges to over 90% of its rated capacity.
C. -50℃ extreme environment low temperature lithium-ion battery: at -50℃, the battery discharges at 0.2℃, accounting for more than 50% of its rated capacity;
