Envia Systems, a company specializing in lithium-ion (Li-ion) energy storage solutions, announced that its High Capacity Manganese Rich (HCMR) cathode material for advanced batteries is available in limited quantities for pilot vehicle programs. Envia's HCMR technology is the first of its proprietary cathode and anode materials for Li-ion batteries to be readied for commercial testing. The HCMR cathode is said to have twice the capacity over currently available cathode materials, enabling battery makers to make smaller battery packs that can reduce the costs of electric vehicles (EVs) and plug-in hybrid-electric vehicles (PHEVs). Concurrently, General Motors announced that it has invested $7 million to lead a $17 million equity investment round in Envia and secured rights to use its HCMR cathode material. Other participating investors include Asahi Kasei and Asahi Glass, as well as current investors Bay Partners, Redpoint, and Panagea Ventures. Envia recently secured development grants from the U.S. Advanced Battery Consortium totaling $3.65 million, adding to grants of $4 million from the U.S. Department of Energy's ARPA-E program and $1 million from the California Energy Commission secured in 2009. Early testing of Envia's composite cathode material shows improvement in energy density of Li-ion cells by up to one-third.