Reising Ethington P.C.
Thin and flexible solid electrolyte for lithium-ion batteries
A lithium-ion conducting, solid electrolyte is deposited on a thin, flexible, porous alumina membrane which is placed between co-extensive facing side surfaces of a porous, lithium-accepting, negative electrode and a positive electrode formed of a porous layer of particles of a compound of lithium, a transition metal element, and optionally, another metal element. A liquid electrolyte formed, for example, of LiPF6 dissolved in an organic solvent, infiltrates the electrode materials of the two porous electrodes for transport of lithium ions during cell operation. But the solid electrolyte permits the passage of only lithium ions, and the negative electrode is protected from damage by transition metal ions or other chemical species produced in the positive electrode of the lithium-ion cell.
GM Global Technology Operations LLC
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Nicholas P. W. Jung Hyun Peng Meng Xingcheng Bob R.
Pieczonka Kim Lu Jiang Xiao Powell, Jr.