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IBM Adds Partners for Lithium-Air Battery Project
IBM Corp. says two Japanese battery materials companies, Asahi Kasei and Central Glass, are joining its Battery 500 Project to develop lithium-air batteries for electric vehicles.
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IBM Corp. says two Japanese battery materials companies, Asahi Kasei and Central Glass, are joining its Battery 500 Project to develop lithium-air batteries for electric vehicles.
The project, which was launched by IBM Research in 2009, hopes to develop a lithium-air battery able to propel a midsize electric car for about 500 miles per charge. IBM says lithium-air batteries have inherently greater energy density than lithium-ion chemistries because they use lighter-weight cathodes and are "fueled" by oxygen from the atmosphere.
But to achieve its mileage goal, IBM says it must develop a battery with 10 times the energy density of a lithium-ion battery. It describes the engineering challenge as "extremely high," so it plans to expand the scope of the project to pursue multiple chemistries simultaneously.
The two Japanese companies will contribute expertise in battery materials to the Battery 500 Project. Asahi Kasei produces separator membranes for lithium-ion batteries. Central Glass makes electrolytes for such batteries.
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