Lithium-ion is a collective term for many different chemistries and technologies. It’s a type of battery, but compared to a traditional lead-acid battery, it has a much higher energy density and can therefore store and supply energy much faster.
The cells of the lithium-ion battery may consist of various cell chemistries. The most common in the truck and car industry are:
- LFP (lithium, iron, phosphate)
- NMC (nickel, manganese, cobalt)
- NCA (nickel, cobalt, aluminium)
Toyota uses NCA cells in its lithium-ion batteries for forklifts, as these have a higher energy density and can contain more energy in the same volume.
At Toyota, we use cylinder cells that do not touch each other. This makes them very safe to use. Safety and quality remain Toyota’s core values in everything that we do.
Lithium-ion is a collective term for many different chemistries and technologies. In general, most of the chemistries are based on creating energy through the movement of free ions between the anode and the cathode in a battery cell.
A lithium-ion battery combines several of these cells to form a module. Depending on the size of the battery, several modules may be connected in series, forming a battery system.
Each module has a battery management system (BMS), as does the entire battery system. The BMS monitors and controls factors such as battery charge and power consumption.
The BMS works in cooperation with the truck. If any of the cells in the battery module are damaged or are in danger of overheating, the power supply is switched off and the truck indicates a fault code.
Some of the advantages of lithium-ion technology include:
- More than three times the lifespan of lead-acid batteries
- 30% more energy-efficient batteries (compared to lead-acid)
- Lower energy consumption, enabling lower CO2 emissions
- Easy and fast charging: a 25V lithium-ion battery is fully charged in only 80 minutes (30 minutes for 50% battery capacity)
- Partial charging and ‘opportunity charging’ are possible without performance or lifespan penalties
- Power output is constantly as high as possible, regardless of the remaining capacity in the battery
- No battery topping or battery maintenance required
- Chargers can be installed anywhere, with no need for dedicated rooms
- Seven-year warranty
- Improved safety thanks to unique Toyota charging plug
- A single battery will serve the lifetime of a truck
- Works efficiently in chilled areas
- Heater option available for in-cold store charging and continuous performance throughout the shift
Lithium-ion batteries work for all types of machines and trucks. The capacity and size of the battery is adapted according to the amount of driving time and any shifts required.
A lithium-ion battery has up to 30% higher capacity than lead-acid batteries thanks to its high energy density, which means that with a lithium-ion battery it is possible to reduce Ah size compared to lead-acid. For example, 210 Ah lithium-ion corresponds to 300 Ah lead-acid. Lithium-ion batteries are smaller and weigh less than lead-acid batteries.
A lithium-ion battery lasts up to 5,000 charges, while a lead-acid battery lasts about 1,500 times.