The XPAND battery pack has been developed for use in commercial and industrial electric vehicle (EV) applications. Devised by Kokam Co., Ltd, in South Korea, the battery pack will be offered in two versions – XMP71P, a 7.1 kWh version, and XMP114E, a 11.4 kWh version. Both versions are scalable to support EV applications from 7.1 kWh up to 1.5 MWh of capacity, in a wide variety of voltages.
The result of four years of extensive R&D and product development efforts, the new XPAND battery pack features advanced battery technologies that meet or exceed practically all existing standards for EV battery safety. For example, the battery cells’ ceramic separator and other battery pack thermal containment technologies prevent thermal runaway propagation. These and other advanced battery technologies enabled the XPAND battery pack to secure an IP67 rating, confirming that it is fully protected from dust and can be submerged in one meter 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 While delivering unparalleled battery safety, the XPAND pack also provides a high-level of cost-effective performance to the EV market. The XPAND’s advanced 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 percent compared to air-cooled systems.
The XPAND battery pack has an energy density of up to 150 Wh/kg. The XMP71P battery pack’s 40Ah Lithium Nickel Manganese Cobalt (NMC) Oxide cells have cycle lives exceeding 6,000 cycles. XPAND’s modular “plug-and-play” design, with all external connections on the front panel, simplify the task of engineering XPAND into a wide variety of EV applications and service the battery pack in the field.
XPAND’s state-of-the-art BMS features diagnostics, estimates of battery state and a flexible system architecture, providing more accurate State of Charge (SOC) and State of Health (SOH) data. The battery system has been tested to meet the strict electromagnetic compatibility (EMC) requirements of international marine and transportation customers in North America, Europe, and Asia. Manufactured in the U.S. in a fully automated, 700 MWh cell manufacturing and pack assembly facility, XPAND addresses the rapidly growing market for electric bus, tram and other commercial and industrial EV battery solutions.