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: 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 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 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 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.

Abstract: Provided herein is a method of preparing anode slurries of lithium-ion batteries. The method disclosed herein comprises a step of dispersing a silicon-based material (2) in a solvent containing a porous carbon aerogel (1). This step allows the silicon-based material (2) to diffuse into and reside in the pores (3) of the porous carbon aerogel (1). The pores (3) provide sufficient space for the expansion of the silicon-based material (2) during the intercalation of lithium ions. Cracking of the silicon-containing layer is avoided.

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 an anode slurry for lithium-ion batteries, comprising a silicon-based material, a porous carbon aerogel, a binder material, a carbon active material, and a solvent, wherein the porous carbon aerogel has an average pore size from about 80 nm to about 500 nm. The porous carbon aerogel in the anode slurry disclosed herein provides sufficient space for expansion of the silicon-based material during intercalation of lithium ions. Cracking of the silicon-containing anode layer is prevented.

Abstract: A method of designing and modifying electrode materials for a battery device is disclosed in this invention. The method includes constructing a first principle model for battery electrode material properties estimation and screening. The method also includes applying a structural and compositional modification on the first principle model. In some embodiments, the method includes developing a hybrid physical model to estimate the battery cell cycling behavior with the calculated and experimental parameters. The method and the simulation models have the advantage that both atomic level and physical structure will be considered for the battery electrode and its modified derivatives with small compositional or structural changes. Therefore, both the time consumption and accuracy for battery electrode material designing and modification for specific application requirements can be improved.

Abstract: A composite material for a battery electrode and a method of producing thereof have been disclosed. In particular, the composite material is used as a cathode for lithium ion batteries. The cathode material is a lithium-rich cathode material with high specific capacity, high capacity retention rate and high lithium ion diffusion. The cathode material is made by a plurality of clusters, in which each of the clusters comprises metallic nano-platelets arranged in a stratified array.

Abstract: A method of designing and modifying electrode materials for a battery device is disclosed in this invention. The method includes constructing a first principle model for battery electrode material properties estimation and screening. The method also includes applying a structural and compositional modification on the first principle model. In some embodiments, the method includes developing a hybrid physical model to estimate the battery cell cycling behavior with the calculated and experimental parameters. The method and the simulation models have the advantage that both atomic level and physical structure will be considered for the battery electrode and its modified derivatives with small compositional or structural changes. Therefore, both the time consumption and accuracy for battery electrode material designing and modification for specific application requirements can be improved.

Abstract: A composite material for a lithium ion battery anode and a method of producing the same is disclosed, wherein the composite material comprises a porous electrode composite material. Pores with carbon-based material forming at the pore wall are created in situ. The porous electrode composite material provide space to accommodate volumetric changes during battery charging and discharging while the carbon-based material improved the conductivity of the electrode composite material. The method creates pores to have a denser carbon content inside the pores and a wider mouth of the pores to enhance lithium ion distribution.

Abstract: A composite material for a battery electrode and a method of producing thereof have been disclosed. In particular, the composite material is used as a cathode for lithium ion batteries. The cathode material is a lithium-rich cathode material with high specific capacity, high capacity retention rate and high lithium ion diffusion. The cathode material is made by a plurality of clusters, in which each of the clusters comprises metallic nano-platelets arranged in a stratified array.

Abstract: A method of coating electrode material, for a lithium ion battery, that involves chemically grafting an organic layer to the electrode material. The method includes carbonizing the organic layer to form a doped carbon layer chemically bonded to the electrode material. A dopant included in the carbon layer is adapted to react with harmful material formed in the operation of the lithium ion battery and thereby protect the electrode material. Further, a dopant included in the carbon layer may improve the carbon layer's conductivity. A lithium ion battery that includes an electrode fabricated from electrode material that has doped carbon chemically bonded to the electrode material. A dopant included in the doped carbon is capable of reacting with harmful products formed in the electrolyte of the lithium ion battery during its charging and discharging process.