DOE: cobalt is the most expensive material used in lithium-ion battery cathodes - Green Car Congress
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FOTW #1228, March 7, 2022: Cobalt is the Most Expensive Material Used in Lithium-ion Battery Cathodes | Department of Energy
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FOTW #1272, January 9, 2023: Electric Vehicle Battery Pack Costs in 2022 Are Nearly 90% Lower than in 2008, according to DOE Estimates | Department of Energy
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Study reveals plunge in lithium-ion battery costs | MIT News | Massachusetts Institute of Technology
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