Lithium-protecting polymer composite layer for a lithium metal secondary battery and manufacturing method
OwnerBor Z. Janginventor
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Abstract
A lithium secondary battery comprising a cathode, an anode, and an electrolyte or separator-electrolyte assembly disposed between the cathode and the anode, wherein the anode comprises: (a) an anode current collector; and (b) a thin layer of a high-elasticity polymer composite in ionic contact with the electrolyte and disposed between the anode current collector and the electrolyte wherein the polymer composite comprises from 0.01% to 95% by weight of a flame retardant additive dispersed in, dissolved in, or chemically bonded to an elastic polymer and wherein the polymer composite has a thickness from 2 nm to 100 μm, a fully recoverable tensile strain from 2% to 700%, and a lithium ion conductivity from 10−8 S/cm to 5×10−2 S/cm.
Claims28
A lithium secondary battery comprising a cathode, an anode, and an electrolyte or separator-electrolyte assembly disposed between said cathode and said anode, wherein said anode comprises:
- a) An anode current collector;
- and
- b) a thin layer of a high-elasticity polymer composite in ionic contact with said electrolyte and disposed between said anode current collector and said electrolyte wherein said polymer composite comprises from 0.01% to 95% by weight of a flame retardant additive dispersed in, dissolved in, or chemically bonded to an elastic polymer and said polymer composite has a thickness from 2 nm to 100 μm, a fully recoverable tensile strain from 2% to 700%, and a lithium ion conductivity from 10−8 S/cm to 5×10−2 S/cm.
An anode electrode for use in a lithium metal battery, said anode comprising:
- a) An anode current collector;
- and
- b) a thin layer of a high-elasticity polymer composite in ionic contact with said electrolyte and disposed between said anode current collector and said electrolyte wherein said polymer composite comprises from 0.01% to 95% by weight of a flame retardant dispersed in, dissolved in, or bonded to an elastic polymer and said polymer composite has a thickness from 2 nm to 100 μm, a fully recoverable tensile strain from 2% to 700%, and a lithium ion conductivity from 10−8 S/cm to 5×10−2 S/cm.
Dependencies are inferred from the claim text.