Abstract: This disclosure relates generally to battery cells, and more particularly, liquid electrolyte solvents, diluents, and designs for lithium-ion battery cells.

Abstract: This disclosure relates generally to battery cells, and more particularly, liquid electrolyte solvents, diluents, and designs for lithium-ion battery cells.

Abstract: An electrochemical cell has a cathode, a lithium metal anode, a separator between the cathode and the lithium metal anode, a liquid electrolyte, and a polymer composite layer bonding the lithium metal anode to the separator. The polymer composite layer includes a crosslinked polymer backbone, polyethylene glycol, polycaprolactone, and one or more lithium salt.

Abstract: Liquid electrolytes for electrochemical cells with silicon-based anodes are composed of an aprotic solvent, an ionic liquid, a lithium salt, and 8 mol % to 30 mol % hydrofluoroether. A molar ratio of the hydrofluoroether to the lithium salt is 0.22:1 to 0.83:1. The liquid electrolytes achieve at least a 50% improvement in cycle life over conventional electrolytes, extend capacity retention and delay increases in internal resistance.

Abstract: Liquid electrolytes for a lithium metal battery comprise an aprotic solvent, an ionic liquid, a lithium salt, 8 mol % to 30 mol % hydrofluoroether and up to 5 mol % additives. A molar ratio of the hydrofluoroether to the lithium salt is 0.22:1 to 0.83:1. The liquid electrolytes achieve at least a 50% improvement in cycle life over conventional electrolytes, extend capacity retention and delay increases in internal resistance.

Abstract: An electrochemical cell has a cathode having a cathode current collector and a cathode active material, an anode having an anode current collector, lithium metal seed, and an anode cap on the lithium metal seed, a liquid electrolyte, a separator between the cathode active material and the anode active material, and a polymer electrolyte lamination layer bonding the anode to the separator. The polymer electrolyte lamination layer is formulated using a crosslinked polymer, a lithium salt, a plasticizer, and an anode additive. The anode cap and the polymer electrolyte lamination layer work together to produce densely plated lithium metal between the lithium metal seed and the anode cap with little or no external pressure.

Abstract: An electrochemical cell has a cathode having a cathode current collector and a cathode active material, an anode having an anode current collector and an anode active material comprising lithium metal, a liquid electrolyte, a separator between the cathode active material and the anode active material, and a polymer electrolyte lamination layer bonding the anode to the separator. The polymer electrolyte lamination layer is formulated using a crosslinked polymer, a lithium salt, a plasticizer, and an anode additive.

Abstract: An all-solid-state battery cell has a cathode on which a cathode current collector is attached, a solid electrolyte deposited on the cathode opposite the cathode current collector, an anode comprising lithium deposited onto the solid electrolyte opposite the cathode, and an anode current collector bonded to the anode opposite the solid electrolyte with a bonding layer of a metal alloyed with the lithium.

Abstract: An anode for a lithium metal battery includes a host structure configured to be between an anode current collector and a separator, the host structure having void spaces configured to host metallic lithium during charging, wherein the host structure has a void space of ?60% and ?80%. Another anode for a lithium metal battery includes a current collector, a separator, and a host structure between the current collector and the separator, the host structure having void spaces configured to host metallic lithium during charging, wherein the host structure is formed of fibers.

Abstract: An electrochemical cell has a cathode having a cathode current collector and a cathode active material, an anode having an anode current collector, lithium metal seed, and an anode cap on the lithium metal seed, a liquid electrolyte, a separator between the cathode active material and the anode active material, and a polymer electrolyte lamination layer bonding the anode to the separator. The polymer electrolyte lamination layer is formulated using a crosslinked polymer, a lithium salt, a plasticizer, and an anode additive. The anode cap and the polymer electrolyte lamination layer work together to produce densely plated lithium metal between the lithium metal seed and the anode cap with little or no external pressure.

Abstract: An electrochemical cell has a cathode having a cathode current collector and a cathode active material, an anode having an anode current collector and an anode active material comprising lithium metal, a liquid electrolyte, a separator between the cathode active material and the anode active material, and a polymer electrolyte lamination layer bonding the anode to the separator. The polymer electrolyte lamination layer is formulated using a crosslinked polymer, a lithium salt, a plasticizer, and an anode additive.

Abstract: Embodiments of methods for depositing material in features of a substrate have been provided herein. In some embodiments, a method for depositing material in a feature of a substrate includes depositing a material in a feature of a substrate disposed in a process chamber by sputtering a target using a plasma formed from a first gas; and etching the deposited material in the process chamber using a plasma formed from a second gas, different than the first gas, to at least partially reduce overhang of the material in the feature, wherein an atomic mass of the second gas is greater than an atomic mass of the first gas.

Abstract: Liquid electrolytes for a lithium metal battery comprise an aprotic solvent, an ionic liquid, a lithium salt, 8 mol % to 30 mol % hydrofluoroether and up to 5 mol % additives. A molar ratio of the hydrofluoroether to the lithium salt is 0.22:1 to 0.83:1. The liquid electrolytes achieve at least a 50% improvement in cycle life over conventional electrolytes, extend capacity retention and delay increases in internal resistance.

Abstract: A liquid electrolyte for a lithium metal battery comprises 45-65 mol % of an aprotic solvent, 5-15 mol % of an ionic liquid, 28-44 mol % of a lithium salt and up to 5 mol % additives. The aprotic solvent consists of one or more of a linear carbonate and a linear ether and the ionic liquid consists of one or more of PYR13FSI, PYR14FSI, PYR13TFSI, and PYR14TFSI. The lithium salt is selected from the group consisting of LiFSI, LiTFSI, and LiBET. The liquid electrolyte can have a flash point of greater than 60° C. and a dynamic viscosity of less than 120 mPa·s.

Abstract: An anode for a lithium metal battery has a current collector formed of a flexible polymer substrate having an anode-facing surface, the polymer substrate formed of a polymer chemically compatible with lithium metal. A current pathway of a first conductive metal is embedded in the polymer substrate and has a terminal end extending from an end of the polymer substrate. Traces of a second conductive metal each have a current collecting portion at the anode-facing surface, the traces in electrical communication with the current pathway. Lithium metal is deposited onto the current collector.

Abstract: An anode for a lithium metal battery includes a current collector, a seed layer deposited onto the current collector, the seed layer comprising a seed material selected to promote electrochemical plating of metallic lithium onto the seed layer, a separator, a host structure between the seed layer and the separator, the host structure having void spaces configured to host metallic lithium during charging, a first adhesion layer bonding the host structure to the seed layer, and a second adhesion layer bonding the host structure to the separator.

Abstract: An anode for a lithium metal battery includes a current collector, a LiPON layer on the current collector, a solid polymer layer on the LiPON layer and a porous separator laminated to the solid polymer layer. The solid polymer layer can be a linear polymer mixed with an ion conducting filler. The solid polymer layer can be a polymer matrix formed from a solidified polymer network comprising a crosslinked polymer mixed with an ion conducting filler.

Abstract: Apparatus for physical vapor deposition are provided herein. In some embodiments, a shield for use in a physical vapor deposition chamber, comprises an annular one-piece body having an inner volume, a top opening and a bottom opening, wherein a bottom of the annular one-piece body includes an inner upwardly extending u-shaped portion, an annular groove formed in an inner wall of the one-piece body, and a plurality of gas distribution vents disposed along the annular feature and formed through the one-piece body, wherein the plurality of gas distribution vents are spaced apart from each other to distribute gases into the inner volume in a desired pattern.

Abstract: Methods and apparatus for processing substrates are provided herein. In some embodiments, a physical vapor deposition chamber includes a first RF power supply having a first base frequency and coupled to one of a target or a substrate support; and a second RF power supply having a second base frequency and coupled to one of the target or the substrate support, wherein the first and second base frequencies are integral multiples of each other, wherein the second base frequency is modified to an offset second base frequency that is not an integral multiple of the first base frequency.

Abstract: A system of gas lines for a processing chamber and a method of forming a gas line system for a processing chamber are provided. The system of gas lines includes electropolished multi-way valves that connect electropolished linear gas lines. By using multi-way valves rather than tee-fittings and electropolishing the linear gas lines, the nucleation of contaminating particles in the system of gas lines may be reduced.