Provided is particulate of a cathode active material for a lithium battery, comprising one or a plurality of cathode active material particles being embraced or encapsulated by a thin layer of a high-elasticity polymer having a recoverable tensile strain no less than 5%, a lithium ion conductivity no less than 10.sup.−6 S/cm at room temperature, and a thickness from 0.5 nm to 10 μm, wherein the polymer contains an ultrahigh molecular weight (UHMW) polymer having a molecular weight from 0.5×10.sup.6 to 9×10.sup.6 grams/mole. The UHMW polymer is preferably selected from polyacrylonitrile, polyethylene oxide, polypropylene oxide, polyethylene glycol, polyvinyl alcohol, polyacrylamide, poly(methyl methacrylate), poly(methyl ether acrylate), a copolymer thereof, a sulfonated derivative thereof, a chemical derivative thereof, or a combination thereof.

The present application relates to an anode, and an electrochemical device and an electronic device comprising the same. Embodiments of the present application provided an anode comprising: a current collector, a first anode structure layer and a second anode structure layer. The first anode structure layer comprises a first framework material and the second anode structure layer comprises a second framework material, wherein the first anode structure layer is disposed between the current collector and the second anode structure layer, and the first framework material has a higher oxidation-reduction potential for lithium ion or electronic conductivity than the second framework material. When the anode with double-layer structure provided by the present application is charged, the space utilization ratio of the anode can be enhanced, the rate capability of the electrochemical device can be enhanced, the formation of lithium dendrites may be inhibited, and the volume change amount of the anode can be reduced, thereby enhancing the safety performance and cycle performance of the electrochemical device.

A battery having a polyvalent metal as the electrochemically active material in the anode which also includes a solid ionically conductive polymer material.

An apparatus for forming an electrode film mixture can have a first source including a polymer dispersion comprising a liquid and a polymer, a second source including a second component of the electrode film mixture, and a fluidized bed coating apparatus including a first inlet configured to receive from the first source the dispersion, and a second inlet configured to receive from the second source the second component.

A process produces a shaped organic charge storage unit, especially a secondary battery, the electrodes of which contain an organic redox-active polymer, and which includes a polymeric solid electrolyte. Compared to conventional folded charge storage units, the charge storage unit shows greater resistance to deformation, which is manifested in a lower drop in capacity and a reduced tendency to fracture in the shaping process.

The present disclosure presents a disulfide containing monomer, its reduced form, its derivative, the synthesis method of this disulfide containing monomer, and the polymer containing the monomers disclosed thereof

An anode material includes a lithiated silicon oxide material, an inorganic coating layer, and a polymer coating layer, wherein the inorganic coating layer and the lithiated silicon oxide material at least have Si—O-M bonds therebetween, and M includes at least one of an aluminum element, a boron element, and a phosphorus element. The anode material has high water stability, high first coulombic efficiency, and good cycle stability.

The present application provides a silicon-based negative electrode material and a preparation method and use thereof. The silicon-based negative electrode material has a lithium borate coating layer on its surface, which may improve first charge-discharge efficiency of the material. There is a strong chemical bond interaction between the lithium borate coating layer and the borate ester having a specific structure, which may improve the rate capability of the battery. Furthermore, the borate ester has a structure of —(CH.sub.2CH.sub.2O).sub.n—CO—CR.sub.0═CH.sub.2, and the negative plate prepared with the silicon-based negative electrode material will undergo a cross-linking reaction during a high-temperature baking of the plate, so that a cross-linking is formed among particles of the silicon-based negative electrode material, thereby effectively ensuring the structural integrity of the silicon-based negative electrode plate during recycling, and improving the cycle performance of the battery.

Provided is an anode-free metal halide battery. The metal halide battery comprises a current collector, an electrolyte, and a cathode. The current collector comprises a passivation layer of an electrically insulating material. The passivation layer allows metal ion transport. The electrolyte comprises an ion-conducting material and is in contact with the current collector and the cathode. The cathode comprises a metal halide salt incorporated into an electrically conductive metal.

A battery electrode material includes a composition of (A) a charge-conducting radical polymer, (B) poly[poly(ethylene oxide) methyl ether methacrylate] (PPEGMA); and (A) a lithium salt, the composition being a mixed ionic and electronic conductor with ionic conductivity at room temperature of at least about 10.sup.−4 S/cm and electronic conductivity of at least about 10.sup.−3 S/cm.