Abstract:
Electrodes are formed with a porous layer of particulate electrode material bonded to each of the two major sides of a compatible metal current collector. In one embodiment, opposing electrodes are formed with like lithium-ion battery anode materials or like cathode materials or capacitor materials on both sides of the current collector. In another embodiment, a battery electrode material is applied to one side of a current collector and capacitor material is applied to the other side. In general, the electrodes are formed by combining a suitable grouping of capacitor layers with un-equal numbers of anode and cathode battery layers. One or more pairs of opposing electrodes are assembled to provide a combination of battery and capacitor energy and power properties in a hybrid electrochemical cell. The cells may be formed by stacking or winding rolls of the opposing electrodes with interposed separators.
Abstract:
Some lithium-ion batteries are assembled using a plurality of electrically interconnected battery pouches to obtain the electrical potential and power requirements of the battery application. In this disclosure, such battery pouches are prepared to contain a stacked grouping of inter-layered and interconnected anodes, cathodes, and separators, each wetted with a liquid electrolyte. A pair of reference electrodes is combined in a specific arrangement with other cell members to enable accurate assessment of both anode group and cathode group performance, and to validate and regenerate reference electrode capability.
Abstract:
Lithium-ion battery cells and a lithium-ion utilizing capacitor cells are placed spaced-apart in a common container and infiltrated with a common lithium-ion transporting, liquid electrolyte. The lithium-ion-utilizing capacitor and lithium-ion cell battery are combined such that their respective electrodes may be electrically connected, either in series or parallel connection for energy storage and management in an automotive vehicle or other electrical power supply application.
Abstract:
An all-solid-state battery cell includes C cathode electrodes including a cathode active material layer arranged on at least one side of a cathode current collector, A anode electrodes including an anode active material layer and an anode current collector, and S separators comprising a sulfide membrane, where C, A, and S are integers greater than one. A lithium layer arranged between the anode current collector and the anode active material layer. The cathode active material, the anode active material, and the separator are densified prior to arranging the lithium layer and the anode current collector adjacent to the anode active material layer.
Abstract:
In an embodiment, an electrolyte includes a lithium salt and a cosolvent, where the cosolvent comprises a cyclic carbonate-containing solvent and a linear carbonate-containing solvent. In an embodiment, a battery includes an anode, a cathode, an electrolyte and a separator. The anode includes an anode current collector and an anode active layer. The anode active layer comprises a lithiated silicon oxide or a combination of lithiated silicon oxide and carbon present in an amount of 20 wt % or greater, based on a total weight of the anode active layer. The cathode includes a cathode current collector and a cathode active layer. The electrolyte includes a lithium salt and a cosolvent that includes a cyclic carbonate-containing solvent and a linear carbonate-containing solvent.
Abstract:
A method of manufacturing an electrode-forming slurry includes mixing together an active material, an electrically conducting material and optionally a solid state electrolyte with a low-polar solvent. The low-polar solvent has a dipole moment of less than 4 and a boiling point greater than 100° C. to form a first slurry, where the active material is an anode active material or a cathode active material. A polymeric binder and an ether-based solvent are mixed to form second slurry. The first slurry and the second slurry are mixed to form the electrode-forming slurry.
Abstract:
A battery that cycles lithium ions includes a negative electrode and an ionically conductive electrolyte. The negative electrode includes an electroactive material comprising a silicon oxide-based material. The electrolyte includes an organic solvent, a lithium salt, and a ternary additive system comprising a phosphite compound, a borate compound, and a sulfate compound.
Abstract:
A thermal device comprises a first layer of a non-metallic material that is a good conductor of heat and electricity, that includes a first terminal and a second terminal, and that has a first surface and a second surface; a metallic material disposed on the first surface of the first layer; a first plastic layer disposed on the metallic material; and a second plastic layer disposed on the second surface of the first layer. The first plastic layer and the second plastic layer include a plastic material that is a good conductor of heat.
Abstract:
A battery cell including an anode electrode layer including an anode active material. A cathode electrode layer comprises cathode active material. A solid electrolyte layer is arranged between the anode electrode layer and the cathode electrode layer. An elastomeric layer is arranged between the anode electrode layer and the solid electrolyte layer.
Abstract:
A battery cell comprises an electrode stack including A anode electrodes with A anode current collectors. A external tabs extend from the first side of the A anode electrodes. C cathode electrodes include C cathode current collectors and C external tabs. A separator comprises a continuous sheet interleaved between the anode electrodes and the C cathode electrodes. The A external tabs of the A anode electrodes are folded along the separator on the first side of the A anode electrodes. The C external tabs of the C cathode electrodes are folded along the separator on the second side the C cathode electrodes. The electrode stack is arranged in a housing. First and second tab positioning members including first and second external lead tabs are connected to the A external tabs and the C external tabs, respectively.