Abstract: Systems and methods for water soluble weak acidic resins as carbon precursors for silicon-dominant anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from silicon and a primary resin carbon precursor; wherein the primary resin carbon precursor comprises a water-soluble acidic polyamide imide functionalized with acidic groups and one or more polymeric stabilizing additives. The electrode coating layer may also include a base and/or a surfactant. The electrode coating layer may be more than 70% silicon.

Abstract: Systems and methods are provided for forming of batteries using carbon compositions as conductive additives for dense and conductive cathodes. An example battery may include an anode, an electrolyte, and a cathode including an active material, with the active material including 0D conductive carbon particles with nanoscale structure in three dimensions, and 1D conductive carbon particles with nanoscale structure in two dimensions. A ratio of the 1D conductive carbon particles to the 0D conductive carbon particles in the active material may be between 0.5 and 2. For example, the ratio of the 1D conductive carbon particles to the 0D conductive carbon particles may be approximately 1. The 1D carbon particles have a diameter of less than 120 nm, a surface area of 30 m2/g, and/or a dispersive surface energy of more than 180 mJ/m2. The 0D and 1D particles may comprise between 1% and 10% of the active material.

Abstract: Systems and methods for use of perforated anodes in silicon-dominant anode cells may include a cathode, an electrolyte, and an anode, where the cathode and anode each comprise an active material on a current collector. Both of the current collector and active material may be perforated. For example, the current collector may be perforated and/or both the current collector and active material may be perforated. The battery may comprise a stack of anodes and cathodes. Each cathode of the stack may be perforated and/or each anode of the stack may be perforated. Each cathode of the stack may comprise two layers of active material on each side of the cathode where a first of the two layers of active material may be for prelithiation of anodes of the battery. A second of the two layers may be for lithium cycling of the battery.

Abstract: Systems and methods for use of perforated anodes in silicon-dominant anode cells may include a cathode, an electrolyte, and an anode, where the cathode and anode each comprise an active material on a current collector. One or both of the current collector and active material may be perforated. For example, the current collector may be perforated and/or both the current collector and active material may be perforated. The battery may comprise a stack of anodes and cathodes. Each cathode of the stack may be perforated and/or each anode of the stack may be perforated. Each cathode of the stack may comprise two layers of active material on each side of the cathode where a first of the two layers of active material may be for prelithiation of anodes of the battery. A second of the two layers may be for lithium cycling of the battery.

Abstract: Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, wherein sacrificial salts and prelithiation reagents are added to the cathode as functional additives for electrochemical prelithiation.

Abstract: Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, wherein the anode is a Si-dominant anode that utilizes water-soluble maleic anhydride- and/or maleic acid-containing polymers/co-polymers, derivatives, and/or combinations (with or without additives) as binders.

Abstract: Systems and methods for water soluble weak acidic resins as carbon precursors for silicon-dominant anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from silicon and a primary resin carbon precursor; wherein the primary resin carbon precursor comprises a water-soluble acidic polyamide imide functionalized with acidic groups and one or more polymeric stabilizing additives. The electrode coating layer may also include a base and/or a surfactant. The electrode coating layer may be more than 70% silicon.

Abstract: Electrolytes and electrolyte additives for energy storage devices comprising cyanate based compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte comprising at least two electrolyte co-solvents, wherein at least one electrolyte co-solvent comprises a cyanate based compound.

Abstract: Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, wherein sacrificial salts and prelithiation reagents are added to the cathode as functional additives for electrochemical prelithiation.

Abstract: Systems and methods for water soluble weak acidic resins as carbon precursors for silicon-dominant anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from silicon and pyrolyzed water-soluble acidic polyamide imide as a primary resin carbon precursor. The electrode coating layer may include a pyrolyzed water-based acidic polymer solution additive. The polymer solution additive may include one or more of: polyacrylic acid (PAA) solution, poly (maleic acid, methyl methacrylate/methacrylic acid, butadiene/maleic acid) solutions, and water soluble polyacrylic acid. The electrode coating layer may include conductive additives. The current collector may include a metal foil, where the metal current collector includes one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer. The electrode coating layer may be more than 70% silicon.

Abstract: Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, where prelithiation reagents are utilized to treat one or more of the anode and cathode. In one embodiment, the prelithiation reagent is a Li-organic complex solution comprising naphthalene and metallic lithium dissolved in an inhibitor-free THF.

Abstract: Systems and methods are provided for silicon with a carbon-based coating for lithium-ion battery electrodes. An example electrode, for use in an electrochemical cell, includes an active material that includes a plurality of silicon particles, with each silicon particle having a coating covering a surface of the particle. The coating may include a carbon based coating. A least a portion of the silicon (e.g., at least 70%) in the silicon particles is elemental silicon.

Abstract: Systems and methods for an ultra-high voltage cobalt-free cathode for alkali ion batteries may include an anode, a cathode, and a separator, with the cathode comprising an active material ANi(1-x)MnxSbOy, where x is a number between 0.0 and 1.0, y is an integer, and A comprises one or more of lithium, sodium, and potassium. The anode may include one or more of an alkali metal, silicon, and carbon. In one example, x is a value in the range between 0.05 and 0.9 and y is a value in the range between 1 and 8 where a specific capacity of the active material is greater than 50 milliamp-hours per gram. In another example, x is a value in the range between 0.4 and 0.6 and y is a value in the range between 1 and 8, where a specific capacity of the active material is greater than 70 milliamp-hours per gram.

Abstract: Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, wherein the anode is a Si-dominant anode that utilizes water-soluble maleic anhydride- and/or maleic acid-containing polymers/co-polymers, derivatives, and/or combinations (with or without additives) as binders.

Abstract: Systems and methods are provided for silicon with a carbon-based coating for lithium-ion battery electrodes. An example electrode, for use in an electrochemical cell, includes an active material that includes a plurality of silicon particles, with each silicon particle having a coating covering a surface of the particle. The coating may include a carbon based coating. A least a portion of the silicon (e.g., at least 70%) in the silicon particles is elemental silicon.

Abstract: Systems and methods are provided for aqueous based electrodes (e.g., anodes) with mechanical enhancement additives. An electrode for use in an electrochemical cell has an active material that includes silicon and a mechanical enhancement additive, with the mechanical enhancement additive selected to offset or counter silicon volume changes, and with the mechanical enhancement additive selected based on one or more selection thresholds relating to one or both of Young's modulus and aspect ratio.

Abstract: Electrolytes and electrolyte additives for energy storage devices comprising cyanate based compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte comprising at least two electrolyte co-solvents, wherein at least one electrolyte co-solvent comprises a cyanate based compound.

Abstract: Systems and methods for water soluble weak acidic resins as carbon precursors for silicon-dominant anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from silicon and pyrolyzed water-soluble acidic polyamide imide as a primary resin carbon precursor. The electrode coating layer may include a pyrolyzed water-based acidic polymer solution additive. The polymer solution additive may include one or more of: polyacrylic acid (PAA) solution, poly (maleic acid, methyl methacrylate/methacrylic acid, butadiene/maleic acid) solutions, and water soluble polyacrylic acid. The electrode coating layer may include conductive additives. The current collector may include a metal foil, where the metal current collector includes one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer. The electrode coating layer may be more than 70% silicon.

Abstract: Systems and methods for thermal curing of water soluble polymers for silicon dominant anodes to improve the mechanical properties of the anode and electrochemical performance of a battery are provided.

Abstract: Systems and methods for an ultra-high voltage cobalt-free cathode for alkali ion batteries may include an anode, a cathode, and a separator, with the cathode comprising an active material ANi(1-x)MnxSbOy, where x is a number between 0.0 and 1.0, y is an integer, and A comprises one or more of lithium, sodium, and potassium. The anode may include one or more of an alkali metal, silicon, and carbon. In one example, x is a value in the range between 0.05 and 0.9 and y is a value in the range between 1 and 8 where a specific capacity of the active material is greater than 50 milliamp-hours per gram. In another example, x is a value in the range between 0.4 and 0.6 and y is a value in the range between 1 and 8, where a specific capacity of the active material is greater than 70 milliamp-hours per gram.