Against the backdrop of global low-carbon industrial transformation, electric forklifts have gradually replaced most internal combustion counterparts in material handling scenarios such as warehouses, ports, and manufacturing workshops. Conventional lead-acid batteries and early lithium-ion battery products can no longer fully match the growing demand for long continuous operation, high safety, low operation cost and wide temperature adaptability in heavy-duty working conditions, which drives the continuous innovation of battery chemical systems for electric forklifts.

The first notable emerging battery chemistry is the optimized iron-based lithium-ion system adjusted for industrial working conditions. Different from consumer-grade lithium battery formulas, this new system adjusts the ratio of cathode and anode materials and electrolyte components, effectively improving the cycle life to more than 6000 times under conventional charge and discharge conditions, while maintaining good thermal stability. It can adapt to 2-3 shifts of continuous operation in most standard warehouse scenarios, and reduce the average annual power supply cost for material handling equipment operators.

The second rapidly developing new chemistry is sodium-ion battery, which has outstanding performance in low temperature resistance and raw material supply stability. In low-temperature environments below zero degrees Celsius that are common in northern open storage yards and cold chain logistics warehouses, the capacity retention rate of this battery system can remain above 80% after long-term use, which makes up for the performance shortcomings of traditional lithium batteries in extreme cold scenarios. It also has more moderate production cost performance, and is suitable for large-scale deployment in scenarios with high seasonal temperature changes.

Semi-solid battery chemistry is another key emerging direction for electric forklift applications. By adding a small amount of solid component to the electrolyte, this system reduces the risk of electrolyte leakage under strong vibration and heavy impact working conditions, further improving the overall safety performance of the battery pack. This technology is especially suitable for port handling, heavy industrial material sorting and other scenarios where the equipment runs at high frequency all day long.

At present, all these new battery chemistries are being tested and verified in actual industrial scenarios, and will gradually realize large-scale commercial application in the next few years. Enterprises engaged in material handling can select appropriate battery solutions according to their own operation intensity, environmental characteristics and cost budget, to steadily promote the electrification upgrade of their forklift fleets.