Non-flammable electrolyte containing liquefied gas and lithium secondary batteries containing same
AssigneeGlobal Graphene Group, Inc.
InventorsAruna Zhamu, Bor Z. Jang
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AssigneeGlobal Graphene Group, Inc.
InventorsAruna Zhamu, Bor Z. Jang
Estimating the term…
A rechargeable lithium cell comprising a cathode, an anode, an optional ion-permeable membrane disposed between the anode and the cathode, a non-flammable salt-retained liquefied gas electrolyte in contact with the cathode and the anode, wherein the electrolyte contains a lithium salt dissolved in or mixed with a liquefied gas solvent having a lithium salt concentration greater than 1.0 M so that the electrolyte exhibits a vapor pressure less than 1 kPa when measured at 20° C., a vapor pressure less than 60% of the vapor pressure of the liquefied gas solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of the liquefied gas solvent alone, a flash point higher than 150° C., or no flash point, wherein the liquefied gas solvent is selected from methane, fluoromethane, difluoromethane, chloromethane, dichloromethane, ethane, fluoroethane, difluoroethane, tetrafluoroethane, chloroethane, dichloroethane, tetrachloroethane, propane, fluoropropane, chloropropane, ethylene, fluoroethylene, chloroethylene, or a combination thereof.
A rechargeable lithium cell comprising a cathode having a cathode active material, an anode having an anode active material, an optional ion-permeable membrane disposed between said anode and said cathode, a non-flammable electrolyte containing lithium salt-retained liquefied gas in contact with said cathode and said anode, wherein said electrolyte contains a lithium salt dissolved in or mixed with a liquefied gas solvent having a lithium salt concentration greater than 1.0 M so that said electrolyte exhibits a vapor pressure less than 1 kPa when measured at 20° C., a vapor pressure less than 60% of the vapor pressure of said liquefied gas solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of said liquefied gas solvent alone, a flash point higher than 150° C., or no flash point, wherein said liquefied gas solvent is selected from methane, ethane, propane, ethylene, chloroethylene, or a combination thereof.
A non-flammable electrolyte for a lithium battery, said electrolyte containing lithium salt-retained liquefied gas having a lithium salt dissolved in or mixed with a liquefied gas solvent having a lithium salt concentration greater than 1.0 M so that said electrolyte exhibits a vapor pressure less than 1 kPa when measured at 20° C., a vapor pressure less than 60% of the vapor pressure of said liquefied gas solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of said liquefied gas solvent alone, a flash point higher than 150° C., or no flash point, wherein said liquefied gas solvent is selected from methane, ethane, propane, ethylene, chloroethylene, or a combination thereof.
Dependencies are inferred from the claim text.