Electrovaya currently offers three chemistry solutions for its polymer battery platform, which is independent of electrode materials:

• Cobaltate (150-220 Wh/kg) for small systems, i.e. cells up to 10 Ah;

• Phosphate (110-130 Wh/kg), a lithium iron phosphate electrode material for large systems including transportation; and

• The recently introduced MN-Series (170-210 Wh/kg), a lithiated manganese oxide based system. The MN series offers up to 50% higher energy density with comparable safety and rate properties to Electrovaya’s Phosphate-Series chemistry, and is the company’s preferred chemistry for transportation. (Earlier post.)

In August, Electrovaya delivered its first plug-in hybrid Ford Escape—based on the MN-series—to the State of New York. The increased volumetric efficiency of the MN-Series enabled the near doubling of the capacity of the pack to nearly 15 kWh.

Electrovaya has previously collaborated with Raser Technologies as co-founder of the Plug-in Hybrid Consortium with the aim of accelerating plug-in hybrid commercialization.

At EVS-23, Electrovaya is highlighting its upgraded Version-3 intelligent Battery Management System (iBMS) for transportation applications. The iBMS has been designed for 15V and 48V modules which may be integrated to form intelligent Battery Systems from 48V to 710V.

The iBMS is an integrated, CAN-bus solution with fail-safe capabilities. It optimizes the battery system for optimal performance at a cell and module-level, protects the system and provides system-level interface communications to optimize the battery system together with other elements such as motor, controller and charger.

The iBMS consists of both distributed and system control intelligence integrated in the battery system design. It is available in several voltage configurations and is available as an integrated solution for all three of Electrovaya’s chemistry offerings.