Thermal Management Inside Lithium-Ion Forklift Packs

Thermal management is one of the most critical performance indicators for lithium-ion forklift packs, which directly affects the comprehensive performance, service life and operation safety of the whole electric forklift. In actual industrial operation scenarios, lithium-ion forklift packs need to sustain continuous high-current discharge under heavy load conditions, and frequent fast charging operations will also generate a large amount of accumulated heat inside the battery pack. If the heat cannot be dissipated evenly and timely, the temperature of the core cells will rise beyond the reasonable working range, and temperature difference between different cells will expand gradually, which will lead to inconsistent performance attenuation of different cells, reduce the overall cycle life of the whole pack, and even bring potential safety risks under extreme working conditions. A qualified thermal management system for lithium-ion forklift packs needs to keep the overall working temperature of the battery pack stably between 20 degrees Celsius and 40 degrees Celsius, and control the maximum temperature difference between internal cells within 5 degrees Celsius. The system can also provide proper low temperature preheating function in cold outdoor working environments, to avoid the sharp drop of battery discharge efficiency and output power caused by too low core temperature. At present, mature thermal management solutions for forklift battery packs usually combine passive heat dissipation and active temperature regulation, which can adapt to different operation intensity and environmental conditions from indoor closed warehouses to open-air heavy loading yards. Jianshu New Energy has accumulated rich practical experience in the R&D and optimization of lithium-ion forklift pack thermal management schemes, which can provide customized adjustment according to the actual use scenarios of different users. BYD Forklift also applies mature and reliable thermal management design in its mass-produced electric forklift products, to ensure stable and reliable operation performance for end users in all-day continuous operation scenarios. Users who have related technical consultation or scheme customization demands can send emails to 17399989919@163.com for further communication. Reasonable and stable thermal management design can effectively extend the overall cycle life of lithium-ion forklift packs, reduce the long-term operation and maintenance cost for logistics and industrial users, and effectively avoid unexpected operation shutdown caused by over temperature or under temperature faults. Regular routine inspection of the thermal management system is also a necessary part of daily forklift maintenance, which can help operation teams to find potential hidden dangers in time, and guarantee the continuous and efficient operation of the whole material handling process.