Cornell University

Korea Institute of Science and Technology

Zhengyuan Tu

Lynden A Archer

Snehashis Choudhury

Won Il Cho

Mun Sek Kim

In Wook Nah

Min Seop Kim

Qing Zhao

Shuya Wei

Yingying Lu

Deniz Gunceler

Tomas Arias

Hybrid electrodes for batteries are disclosed having a protective electrochemically active layer on a metal layer. Other hybrid electrodes include a silicon salt on a metal electrode. The protective layer can be formed directly from the reaction between the metal electrode and a metal salt in a pre-treatment solution and/or from a reaction of the metal salt added in an electrolyte so that the protective layer can be formed in situ during battery formation cycles.

Protective layers for metal electrode batteries

A metal-based battery includes at least one metal electrode immersed within an electrolyte that includes: (1) an aprotic solvent; (2) a simple halogen containing material; and (3) optionally a metal salt that includes a complex halogen containing anion. The simple halogen containing material may include a metal halide salt that includes a metal cation selected from the group including but not limited to lithium and sodium metal cations. The metal halide salt may also include a halide anion selected from the group consisting of fluoride, chloride, bromide and iodide halide anions. The use of the metal halide salt within the metal-based battery provides enhanced cycling ability within the metal-based battery. Also contemplated are additional simple halogen containing material additives that may enhance cycling performance of a metal-based battery.

Dendrite inhibiting electrolytes for metal-based batteries

Provided is a lithium metal anode comprising a Langmuir-Blodgett films as an artificial solid electrolyte interface layer, a lithium metal battery comprising the same, and a preparation method thereof. Various ultra-thin film layers made of carbon and ceramic are formed on the surface of the LiM to serve as a stable artificial SEI layer and suppress formation and perforation of lithium dendrite and side reactions.

Lithium metal anode comprising Langmuir-Blodgett films as an artificial solid electrolyte interface layer, lithium metal battery comprising the same, and preparation method thereof

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Jiangxi, China

Zhengyuan Tu