Battelle Memorial Institute

Chinese Academy of Sciences

Guangdong Keprime Enerstore Ltd

Deyu Wang

Jie Xiao

Wu Xu

Jun Liu

Ji-Guang Zhang

Jun Li

Ralph E Williford

Chenyun Wang

Yuanhao Tang

Wei Liu

Jiguang Zhang

Nathan L Canfield

Xiaolin Li

Xianhui Zhang

Z Gary Yang

Yujing Bi

Jingjing Zhou

Huan Lin

Jinhua He

Zhenlian Chen

The present invention relates to a modified lithium ion battery anode material having high energy density, and a manufacturing process thereof, the anode material comprising, from inside to outside, a core, a transition layer and a shell layer. The anode material of the present invention has the advantages of high energy density, low surface activity, good storage performance, and a simple manufacturing process, and is suitable for large scale application.

Modified lithium ion battery anode material having high energy density, and manufacturing method thereof

Described herein are solid solution composites that are used as cathode materials for lithium-ion batteries. The solid solution composite of &#x3b1; LiMVO-&#x3b2;LiNiCoMnO, in which LiMVOhas cubic close-packed structure, LiNiCoMnOhas hexagonal layered structure, and both share an oxygen lattice fully or partly. The new solid solution materials have advantage for lithium-ion batteries that the working voltage of the composite is adjustable by controlling the molar ratio of &#x3b1; and &#x3b2; and have higher working voltage than current secondary battery materials. Also described herein are methods of preparing such composite.

Solid solution composite LIMVO4-LINI-X-YCOXMNYO2 material for rechargeable lithium ion batteries

The present invention relates to a novel phosphate based composite anode material, preparation method and uses thereof. Specifically disclosed is a phosphate based composite cell anode material, the material having monoclinic and orthorhombic crystal lattice structures with the chemical formula of AVM(PO), wherein A is Li, Naor the mixture thereof, M is Mg, Al, Sc, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn or Nb, 0&#x2266;x&#x2266;3.0, 0&#x2266;y&#x2266;2.0, and C is the carbon layer. Also disclosed are a preparation method and uses of the composite material. Unlike simple physical mixing, the composite material of the present invention has the advantages of an adjustable electric potential plateau, high reversible capacity, good cycle stability, power consumption early warning and the like.

Phosphate based composite anode material, preparation method and use thereof

Methods for making composite anodes, such as macroporous composite anodes, are disclosed. Embodiments of the methods may include forming a tape from a slurry including a substrate metal precursor, an anode active material, a pore-forming agent, a binder, and a solvent. A laminated structure may be prepared from the tape and sintered to produce a porous structure, such as a macroporous structure. The macroporous structure may be heated to reduce a substrate metal precursor and/or anode active material. Macroporous composite anodes formed by some embodiments of the disclosed methods comprise a porous metal and an anode active material, wherein the anode active material is both externally and internally incorporated throughout and on the surface of the macroporous structure.

Methods for making anodes for lithium ion batteries

Disclosed herein are embodiments of lithium/air batteries and methods of making and using the same. Certain embodiments are pouch-cell batteries encased within an oxygen-permeable membrane packaging material that is less than 2% of the total battery weight. Some embodiments include a hybrid air electrode comprising carbon and an ion insertion material, wherein the mass ratio of ion insertion material to carbon is 0.2 to 0.8. The air electrode may include hydrophobic, porous fibers. In particular embodiments, the air electrode is soaked with an electrolyte comprising one or more solvents including dimethyl ether, and the dimethyl ether subsequently is evacuated from the soaked electrode. In other embodiments, the electrolyte comprises 10-20% crown ether by weight.

High-energy metal air batteries

Some batteries can exhibit greatly improved performance by utilizing electrodes having randomly arranged graphene nanosheets forming a network of channels defining continuous flow paths through the electrode. The network of channels can provide a diffusion pathway for the liquid electrolyte and/or for reactant gases. Metal-air batteries can benefit from such electrodes. In particular Li-air batteries show extremely high capacities, wherein the network of channels allow oxygen to diffuse through the electrode and mesopores in the electrode can store discharge products.

Graphene-based battery electrodes having continuous flow paths

Growing community of inventors

Richland, WA, United States of America

Deyu Wang