Battery manufacturer launches new pack aimed at electric buses and industrial EV applications
South Korean battery manufacturer Kokam has launched its latest battery pack – the XPAND. The pack is aimed at offering electric vehicle manufacturers a safe, high-performance battery for electric buses, trams and trucks, as well as military, marine and other EV applications.
The XPAND battery pack will be offered in two versions – the 7.1-kWh XMP71P, and the 11.4-kWh XMP114E. Both versions are easily scalable, able to support EV applications from 7.1 kWh up to 1.5MWh of capacity, in a wide variety of voltages.
Overall, the pack offers an energy density of up to 150 watt hours per kilogram (Wh/kg).
“While cost and performance are important considerations for electric bus, tram and other EV manufacturers when selecting a battery, safety is their number one priority,” said Ike Hong, vice president of Kokam’s Power Solutions Division. “With XPAND, Kokam now offers manufactures an EV battery pack that has been tested and certified to be one of the safest EV battery solutions on the market – while still offering high levels of performance at a competitive price.”
The pack is produced in the US in the company’s 700 megawatt hour (MWh) cell manufacturing and pack assembly facility.
XPAND has secured an IP67 rating, confirming that it is fully protected from dust and can be submerged in 1 metre of water for up to 30 minutes. In addition, the XPAND battery pack has been developed according to ISO 12405, ECE R100, J2929, and ISO 26262 standards and is UN38.3 certified.
The XPAND’s liquid cooling system offers direct cooling to the battery cells’ face, maximizing volumetric efficiency by reducing the mass of the system by up to 75% compared with air-cooled systems. XPAND is also built to last—the XMP71P battery pack’s 40Ah Lithium Nickel Manganese Cobalt (NMC) Oxide cells have a long lifespan, with cycle lives of over 6,000 cycles.
The company also notes that the XPAND battery management system features diagnostics, battery state estimate and a flexible system architecture, providing more accurate State of Charge (SOC) and State of Health (SOH) data, helping EV operators more accurately estimate how long they can continue to drive their EV before recharging.