Abstract: A method for manufacturing patterned electrodes includes extruding a mixture including an active material, a conductive additive, a binder, and a solvent from an extruder to form an active material layer; laminating the active material layer and a current collector; and patterning the active material layer using a patterned roller including a plurality of projections that form a plurality of features extending into the active material layer.

Abstract: A battery that cycles lithium ions includes a positive electrode and an electrolyte infiltrating the positive electrode. The positive electrode includes an electroactive material including a layered lithium transition metal oxide. The electrolyte includes an organic solvent, a lithium salt, and a fluorinated phosphate ester additive. The fluorinated phosphate ester includes at least one of: (i) a chemical compound comprising a phosphate group attached to two or three branched-chain fluorocarbon groups, or (ii) a chemical compound comprising a cyclic phosphate group attached to a fluorocarbon group.

Abstract: In an embodiment, an electrolyte for a lithium-ion battery includes a lithium salt, a phosphorus-containing additive, and a solvent. In an embodiment, a lithium-ion battery comprises an anode, a cathode, an electrolyte and a separator. The anode comprises an anode active layer. The cathode comprises a cathode active layer, where the cathode active layer comprises lithium and manganese-rich layered-structure material. The electrolyte comprises a phosphorus-containing additive. The separator is disposed between the anode and the cathode.

Abstract: A battery that cycles lithium ions includes a positive electrode and an electrolyte infiltrating the positive electrode. The positive electrode includes an electroactive material comprising a lithium-and manganese-rich oxide. The electrolyte includes an organic solvent, an inorganic lithium salt, and a nitrile additive.

Abstract: A battery that cycles lithium ions includes a positive electrode and an electrolyte infiltrating the positive electrode. The positive electrode includes an electroactive material comprising a lithium-and manganese-rich oxide. The electrolyte includes an organic solvent, an inorganic lithium salt, and a functional additive comprising lithium fluoride (LiF), lithium phosphate (Li3PO4), or a combination thereof.

Abstract: The disclosure relates to solid-phase and molten metal phosphorothioates useful as electrolytes, batteries comprising solid-phase and molten metal phosphorothioates, and methods of making solid-phase and molten metal phosphorothioates.

Abstract: A battery that cycles lithium ions includes a positive electrode, a negative electrode, and an electrolyte infiltrating the positive electrode and the negative electrode. The negative electrode comprises a silicon-containing electroactive active material. The electrolyte includes an organic solvent, an inorganic lithium salt, and a fluoroalkoxysilane additive.

Abstract: A battery cell comprises C cathode electrodes comprising a cathode current collector and a cathode active material layer, where C is an integer greater than zero, A anode electrodes comprising an anode current collector and an anode active material layer, where A is an integer greater than zero, and S separators, where S is an integer greater than zero. An electrolyte comprising an additive including at least one of tris(2,2,2-trifluoroethyl) phosphate (TFEP) and a TFEP derivative.

Abstract: An electrolyte composition for batteries is provided. The electrolyte composition includes a solvent blend that includes cyclic carbonate and linear carbonate. The electrolyte composition further includes a lithium-based salt, fluoroethylene carbonate, vinylene carbonate, and a metal-based salt additive. The metal-based salt additive includes counterions of a metal and trifluoromethanesulfonimide. The metal is chosen from magnesium (Mg), manganese (Mn), aluminum (Al), iron (Fe), nickel (Ni), or combinations thereof.

Abstract: An electrolyte for an electrochemical cell that cycles lithium ions includes an organic solvent, an inorganic lithium salt, and an additive including a chemical compound having a phosphorus, oxygen, and silicon bond (POS additive). The organic solvent includes a mixture of a cyclic carbonate and a linear carbonate. The POS additive includes a trialkylsilyl ester of at least one of phosphoric acid, polyphosphoric acid, phosphonic acid, and phosphorous acid. The electrochemical cell may include a positive electrode comprising a nickel-based electroactive material and a negative electrode comprising a silicon-based electroactive active material.

Abstract: An electrode for an electrochemical cell that cycles lithium ion includes a porous electroactive layer and an electrolyte disposed in at least a portion of pores of the porous electroactive layer. The porous electroactive layer includes an electroactive material represented by: xLi2MnO3·(1-x)LiMO2 where M is a transition metal selected from the group consisting of: nickel (Ni), manganese (Mn), cobalt (Co), aluminum (Al), iron (Fe), and combinations thereof and 0.01?x?0.99. The electrolyte includes a lithium salt and a first solvent that includes 2,2,2-trifluoroethyl acetate (TFEA). The electrolyte may also include a second solvent that includes fluoroethylene carbonate (FEC) and/or a third solvent that includes diethyl carbonate (DEC). A ratio of the first solvent to the second solvent to the third solvent may be greater than or equal to about 1:1:98 to less than or equal to about 98:1:1.

Abstract: A composite electrode for an electrochemical cell that cycles lithium ions is manufactured by introducing a solvent, a binder, electroactive material particles, and an electrically conductive agent into a screw extruder to form an electrode precursor mixture. The electrode precursor mixture is discharged from the screw extruder and deposited on a metal substrate to form an electrode precursor layer. The electrode precursor layer is calendared by passing the electrode precursor layer between rollers to adhere the electrode precursor layer to and uniformly distribute the electrode precursor layer over the metal substrate. Then, the electrode precursor layer is dried to remove the solvent therefrom and form a solid electrode layer including the electroactive material particles, the electrically conductive agent, and the binder on the surface of the metal substrate.

Abstract: An electrochemical cell that cycles lithium ions includes a first electrolyte, a second electrode, a separating layer disposed between the first layer and the second layer. The first electrolyte includes a nickel-rich positive electroactive material that includes greater than or equal to about 80 mass % of nickel (Ni). The second electrode includes a silicon-based negative electroactive material. The electrochemical cell also includes an electrolyte in contact with at least one of the nickel-rich positive electroactive material in the first electrode and the silicon-based negative electroactive material in the second electrode. The electrolyte includes greater than or equal to about 1.5 wt. % to less than or equal to about 5 wt. % of an electrolyte additive. The electrolyte includes one or more isocyanate functional groups.

Abstract: An electrochemical cell includes a first porous electrode, a second porous electrode, and a separating layer disposed therebetween. The first porous electrode includes an electrolyte intermingled with a positive electroactive material represented by: LiM1xM2yM3zM4(1?x?y?z)O2 where M1 include nickel (Ni) and M2, M3, and M4 are transition metals independently selected from the group consisting of: manganese (Mn), cobalt (Co), aluminum (Al), iron (Fe), and combinations thereof and where 0.8?x?1, 0?y?1, and 0?z?1. The second porous electrode includes the electrolyte intermingled with a silicon-based negative electroactive material. The electrolyte includes greater than or equal to about 0.5 wt. % to less than or equal to about 2 wt. % of an electrolyte additive including (2-cyanoethyl)triethoxysilane (TEOSCN). The electrolyte also includes a lithium-containing salt and a solvent mixture including ethylene carbonate (EC) and dimethyl carbonate (DMC) in mass ratio of about 3:7.

Abstract: An electrochemical cell that cycles lithium ions is provided. The electrochemical cell may include a first porous electrode, a second porous electrode, and a separating layer disposed between the first electrode and the second electrode. The first porous electrode includes an electrolyte intermingled with a nickel-rich positive electroactive material. The second porous electrode includes the electrolyte intermingled a silicon-based negative electroactive material. The electrolyte includes greater than or equal to about 1 wt. % to less than or equal to about 3 wt. % of an electrolyte additive and a solvent mixture. The electrolyte additive may be selected from the group consisting of: succinic anhydride (SA), maleic anhydride, N-carboxyanhydride, glutaric anhydride, isatin anhydride, citraconic anhydride, and combinations thereof. The solvent mixture may include ethylene carbonate (EC) and dimethyl carbonate (DMC) in mass ratio of about 3:7.

Abstract: The present disclosure provides an electrochemical cell that cycles lithium ions. The electrochemical cell includes a first electrode, a second electrode, and a separating layer disposed between the first electrode and the second electrode. The first electrode includes an electrolyte intermingled with a nickel-rich positive electroactive material. The second electrode also includes the electrolyte, and the electrolyte is intermingled a silicon-based negative electroactive material. The electrolyte includes an electrolyte additive and a solvent mixture. The solvent mixture includes vinylene carbonate, fluoroethylene carbonate, ethylene carbonate, and dimethyl carbonate. The electrolyte additive is selected from the group consisting of: lithium difluorophosphate, ethylene sulfate, and combinations thereof.

Abstract: An electrochemical cell that cycles lithium ions is provided. The electrochemical cell includes a porous positive electrode that includes a positive electroactive material represented by: LiM1xM2yM3zM4(1-x-y-z)O2, where M1, M2, M3, and M4 are transition metals independently selected from the group consisting of: nickel (Ni), manganese (Mn), cobalt (Co), aluminum (Al), iron (Fe), and combinations thereof, 0?x?1, 0?y?1, and 0?z?1. The electrochemical cell also includes a porous negative electrode physically separated from the positive electrode, and an electrolyte disposed in pores of the positive and negative electrodes. The electrolyte may include a lithium salt, an electrolyte additive having one or more alkene amide groups, and a solvent. The negative electrode can include a silicon-based negative electroactive material.

Abstract: In an embodiment, the present disclosure pertains to an electrolyte composition including a plurality of ether-based solvents and at least one sodium-based salt. The plurality of ether-based solvents include at least one acyclic ether and at least one cyclic ether. In a further embodiment, the present disclosure pertains to an energy storage device that includes an electrolyte composition of the present disclosure. In another embodiment, the present disclosure pertains to a method of making the electrolyte compositions of the present disclosure. Such methods generally include one or more of the following steps of mixing a plurality of ether-based solvents and at least one sodium-based salt, and forming the electrolyte composition.

Abstract: An electrolyte composition for a battery is provided. The electrolyte composition includes a lithium salt in a carbonate-based solution and lithium difluoro(oxalate)borate present in the electrolyte composition in an amount from 0.1 part by weight to 5 parts by weight based on 100 parts by weight of the electrolyte composition.

Abstract: The disclosure relates to metal phosphorothioates, batteries comprising metal phosphorothioate, cells comprising metal phosphorothioate, and methods of making thereof.