Abstract: Disclosed is a method for precipitating a polymer by adding a precipitation agent into a first suspension to form a second suspension; wherein the first suspension comprises a polymer and an aqueous solvent; and wherein the polymer comprises a copolymer comprising a structural unit derived from an acid group-containing monomer and a structural unit derived from a hydrophobic group-containing monomer. The method for precipitation of a polymer disclosed herein is developed to initiate the bond disruption and/or breakage between the polymer and the aqueous solvent within the second suspension. This is accompanied with the structural transformation of the polymer driven by the intermolecular and intramolecular interactions of the polymer chains which brings about the precipitation of the polymer. The method circumvents both complex separation process and contamination of the polymer, enables excellent materials recovery and allows the precipitation of the polymer to be achieved within a short time frame.

Abstract: A cathode slurry comprising a cathode active material, especially a nickel-containing cathode active material, with improved stability in water. Treatment of nickel-containing cathode active materials with lithium compounds may improve stability of the cathode by preventing undesirable decomposition of the material. Also provided herein is a cathode for a secondary battery, comprising a current collector and an electrode layer coated on top of the current collector, wherein the electrode layer comprises a cathode active material, a binder material and a lithium compound.

Abstract: Provided herein is a method for preparing a cathode based on an aqueous slurry. The cathode slurry comprises a cathode active material, especially a nickel-containing cathode active material, with improved stability in water. Pre-treatment of nickel-containing cathode active materials may improve stability of the cathode by preventing undesirable decomposition of the material. In addition, battery cells comprising the cathode prepared by the method disclosed herein exhibit impressive electrochemical performances.

Abstract: The invention provides an aqueous solvent-based cathode slurry for a secondary battery, comprising a cathode active material, a water-compatible copolymeric binder, a lithium compound, and an aqueous solvent. The lithium compound in the cathode slurry serves as a lithium-ion source in compensating for the irreversible capacity loss due to SEI formation during initial charging of the battery. Consequently, battery cells prepared using the cathode slurry disclosed herein exhibit improved electrochemical performance. Also provided herein is a cathode for a secondary battery, comprising a current collector and an electrode layer coated on one side or both sides of the current collector, wherein the electrode layer comprises a cathode active material, a water-compatible copolymeric binder, and a lithium compound; and which the cathode can be produced using the aqueous solvent-based cathode slurry disclosed.

Abstract: A method for preparing a cathode based on an aqueous slurry is provided. The cathode slurry with improved stability in water comprises a cathode active material, especially a nickel-containing cathode active material. Treatment of nickel-containing cathode active materials with lithium compounds may improve stability of the cathode by preventing undesirable decomposition of the material. In addition, battery cells comprising the cathode prepared by the method disclosed herein exhibit impressive electrochemical performances.

Abstract: Provided herein is a method of preparing anode slurries of lithium-ion batteries. The silicon-based material is uniformly dispersed prior to mixing with other components of the anode slurry. The method disclosed herein is capable of avoiding agglomeration of nano-sized silicon-based material and effectively dispersing the nano-sized silicon-based material uniformly in anode slurries. Anodes coated with the anode slurries disclosed herein also show an improvement in the electrical conductivity.

Abstract: Provided herein is a lithium-ion battery comprising an electrode assembly, wherein the electrode assembly comprises at least one cathode, at least one anode, and a separator interposed between the at least one cathode and the at least one anode; and wherein the separator comprises a porous base material and a porous polymer layer coated on a surface of the porous base material and adjacent to the at least one cathode. The lithium-ion battery comprising the separator disclosed herein prevents thermal runaway during overcharge, thereby ensuring the safety of lithium-ion battery.

Abstract: A cathode slurry comprises a cathode active material, especially a nickel-containing cathode active material, a binder, a solvent and a base having a formula of R1R2R3N, with improved stability in water. Pre-treatment of nickel-containing cathode active materials may improve stability of the cathode by preventing undesirable decomposition of the material. In addition, battery cells comprising the cathode prepared by the cathode slurry exhibit impressive electrochemical performances.

Abstract: Provided herein is a method for preparing a cathode based on an aqueous slurry. The cathode slurry comprises a cathode active material, especially a nickel-containing cathode active material, with improved stability in water. Pre-treatment of nickel-containing cathode active materials may improve stability of the cathode by preventing undesirable decomposition of the material. In addition, battery cells comprising the cathode prepared by the method disclosed herein exhibit impressive electrochemical performances.

Abstract: Provided herein is an electrode assembly of lithium-ion battery, comprising at least one anode, at least one cathode and at least one separator interposed between the at least one anode and at least one cathode, wherein the water content of the electrode assembly is less than 20 ppm by weight, based on the total weight of the electrode assembly.

Abstract: Provided herein is a lithium-ion battery comprising an electrode assembly, wherein the electrode assembly comprises at least one cathode, at least one anode, and a separator interposed between the at least one cathode and the at least one anode; and wherein the separator comprises a porous base material and a porous polymer layer coated on a surface of the porous base material and adjacent to the at least one cathode. The lithium-ion battery comprising the separator disclosed herein prevents thermal runaway during overcharge, thereby ensuring the safety of lithium-ion battery.

Abstract: Provided herein is an electrode assembly of lithium-ion battery, comprising at least one anode, at least one cathode and at least one separator interposed between the at least one anode and at least one cathode, wherein the water content of the electrode assembly is less than 20 ppm by weight, based on the total weight of the electrode assembly.

Abstract: Provided herein is a method for preparing a ternary cathode material for lithium-ion battery by a static mixer, wherein the cathode material comprises a lithium multi-metal composite oxide represented by xLi2MnO3.(1?x)LiNiaMnbCocAl(1-a-b-c)O2, where 0?a<1, 0?b<1, 0?c<1, a+b+c?1, and 0?x<1. The cathode material disclosed herein exhibits a high initial specific capacity, possesses good safety characteristics and shows excellent capacity retention.

Abstract: Provided herein is an electrode assembly of lithium-ion battery, comprising at least one anode, at least one cathode and at least one separator interposed between the at least one anode and at least one cathode, wherein the water content of the electrode assembly is less than 20 ppm by weight, based on the total weight of the electrode assembly.

Abstract: Provided herein is a method for preparing a ternary cathode material for lithium-ion battery by a static mixer, wherein the cathode material comprises a lithium multi-metal composite oxide represented by xLi2MnO3.(1-x) LiNiaMnbCocAl(1a-b-c)O2, where 0?a<1, 0?b<1, 0?c<1, a+b+c?1, and 0?x<1. The cathode material disclosed herein exhibits a high initial specific capacity, possesses good safety characteristics and shows excellent capacity retention.

Abstract: Provided herein is a lithium-ion battery cathode slurry, comprising: a cathode active material, a conductive agent, a binder material, and a solvent, wherein the cathode active material has a particle size D50 in the range from about 10 ?m to about 50 ?m, and wherein the slurry coated onto a current collector having a wet film thickness of about 100 ?m has a drying time of about 5 minutes or less under an environment having a temperature of about 60° C. to about 90° C. and a relative humidity of about 25% to about 40%. The cathode slurry disclosed herein has homogeneous ingredient dispersion and quick drying capability for making a lithium-ion battery with high quality and consistent performance. In addition, these properties of the cathode slurry increase productivity and reduce the cost of manufacturing lithium-ion batteries.

Abstract: Provided herein is a method for recycling lithium-ion batteries, comprising isolating a mixture of anode and cathode materials from waste lithium-ion batteries. The separated electrode materials can easily be collected with high recovery rate, providing a rapid, efficient and low-cost method for recycling electrode materials from waste lithium-ion batteries.

Abstract: Provided herein is a lithium-ion battery anode slurry, comprising: an anode active material, a conductive agent, a binder material, and a solvent, wherein the anode active material has a particle size D50 in the range from about 10 ?m to about 40 ?m, and wherein the slurry coated onto a current collector having a wet film thickness of about 100 ?m has a drying time of about 5 minutes or less under an environment having a temperature of about 60° C. to about 90° C. and a relative humidity of about 25% to about 40%. The anode slurry disclosed herein has homogeneous ingredient dispersion and quick drying capability for making a lithium-ion battery with high quality and consistent performance. In addition, these properties of the anode slurry increase productivity and reduce the cost of manufacturing lithium-ion batteries.

Abstract: Provided herein is a method for recycling lithium-ion batteries in a polar solvent such as an aqueous media or water. The method disclosed herein isolates a mixture of anode and cathode materials from waste lithium-ion batteries. The separated electrode materials can easily be collected with high recovery rate, providing a rapid, efficient and low-cost method for recycling electrode materials from waste lithium-ion batteries.

Abstract: Provided herein is a method for preparing a ternary cathode material for lithium-ion battery by a static mixer, wherein the cathode material comprises a lithium multi-metal composite oxide represented by xLi2MnO3. (1-x) LiNiaMnbCocAl (1-a-b-e)O2, where 0?a<1, 0?b<1, 0?c<1, a+b+c?1, and 0?x<1. The cathode material disclosed herein exhibits a high initial specific capacity, possesses good safety characteristics and shows excellent capacity retention.