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DOE OSTI · 1735324

Cobalt-stabilized lithium metal oxide electrodes for lithium batteries

Thackeray, Michael M.·Croy, Jason R.·Long, Brandon R.·Park, Joong Sun·Lee, Eungje
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Abstract

An electrode material comprising a composite lithium metal oxide, which in an initial state has the formula: y[xLi2MO3.(1−x)LiM′O2].(1−y)Li1+dMn2−z−dM″zO4; wherein 0≤x≤1; 0.75≤y<1; 0<z≤2; 0≤d≤0.2; and z−d≤2. M comprises one or more metal ions that together have an average oxidation state of +4; M′ comprises one or more metal ions that together have an average oxidation state of +3; and M″ comprises one or more metal ions that together with the Mn and any excess proportion of lithium, “d”, have a combined average oxidation state between +3.5 and +4. The Li1+dMn2−z−dM″zO4 component comprises a spinel structure, each of the Li2MO3 and the LiM′O2 components comprise layered structures, and at least one of M, M′, and M″ comprises Co. Cells and batteries comprising the electrode material also are described.

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25 ENERGY STORAGE37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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BibTeXRIS

Thackeray, Michael M., Croy, Jason R., Long, Brandon R., Park, Joong Sun, Lee, Eungje. 2020-09-29. Cobalt-stabilized lithium metal oxide electrodes for lithium batteries. https://www.osti.gov/biblio/1735324

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