Revealing anion chemistry above 3V in Li-ion capacitors
نویسندگان
چکیده
منابع مشابه
Anion-redox nanolithia cathodes for Li-ion batteries
The development of lithium–air batteries is plagued by a high potential gap (>1.2V) between charge and discharge, and poor cyclability due to the drastic phase change of O2 (gas) and O (condensed phase) at the cathode during battery operations. Here we report a cathode consisting of nanoscale amorphous lithia (nanolithia) confined in a cobalt oxide, enabling charge/discharge between solid Li2O/...
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متن کاملAnion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li0.2Ni0.2Mn0.6]O2.
Conventional intercalation cathodes for lithium batteries store charge in redox reactions associated with the transition metal cations, e.g., Mn(3+/4+) in LiMn2O4, and this limits the energy storage of Li-ion batteries. Compounds such as Li[Li0.2Ni0.2Mn0.6]O2 exhibit a capacity to store charge in excess of the transition metal redox reactions. The additional capacity occurs at and above 4.5 V v...
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ژورنال
عنوان ژورنال: Electrochimica Acta
سال: 2019
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2019.134871