Hon Hai Precision Industry Co., Ltd.

Tsinghua University

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Jiangsu Huadong Institute of Li-ion Battery Co., Ltd

Superd Co. Ltd.

Hon Fu Jin Precision Industry (shenzhen) Co., Ltd.

Shenzhen Super Perfect Optics Limited

Jian-Jun Li

Xiang-Ming He

Jian Gao

Li Wang

Wei-Hua Pu

Chang-Yin Jiang

Jian-guo Ren

Xian-Kun Huang

Dan Wang

Te-Sheng Jan

Yu-Tao Chen

Chun-Che Yen

Li-Chun Zhang

Wen-Ting Sun

Gang Cheng

Jian-Wei Guo

Meng-Hua He

Bing-Jing Xu

Zheng-Qiang Song

Gai Yang

Jie-Rong Ying

Yi-Pai Huang

Chih-wei Chen

Tzyy-Chyi Tsai

Dong-Sheng Lin

Yu-Ming Shang

Po-Chuan Chen

Min Chen

Chen-Chen Zhao

Yao-Wu Wang

Jian-Gang Li

Zhong-Jia Dai

Lei Wang

Cheng Fang Wang

Zhi-Xiang Liu

Yong Yang

Tuan-Wei Li

Shu-Hui Wang

Li-Juan Feng

Wen-Jia Zhang

Ju-Ping Yang

Syuan Li

Ji-Xian Wang

Qing-Wei Cui

Jiang Cao

Hong-Sheng Zhang

Guo-Hua Li

A cathode catalyst used for conversion of a carbon dioxide gas by an electrochemical reduction includes at least one first catalyst layer and at least one second catalyst layer disposed on a surface of the at least one first catalyst layer. The at least one second catalyst layer is a porous structure. The at least one first catalyst layer and the at least one second catalyst layer are physically combined with each other, and materials of the at least one first catalyst layer and the at least one second catalyst layer are different. A cathode material and a reactor include the cathode catalyst are also provided.

Cathode catalyst, cathode material using the same, and reactor using the same

The present disclosure relates to a method for making an electrode material of lithium-ion batteries. In the method, a lithium source solution and a plurality of titanium source particles are provided. The lithium source solution and the titanium source particles are mixed, wherein a molar ratio of lithium element to titanium element is in a range from about 4:5 to about 9:10, thereby forming a sol. A carbon source compound is dispersed into the sol to form a sol mixture. The sol mixture is spray dried to form a plurality of precursor particles. The precursor particles are heated to form a lithium titanate composite electrode material.

Method for making lithium-ion battery electrode material

A method for screening a lithium ion battery is provided. A number of lithium ion batteries are galvanostatically discharged a to an inflection point voltage at an inflection point of a discharge curve at a first constant current I. The number of lithium ion batteries are rested for a first rest time Tto raise an open circuit voltage of the number of lithium ion batteries to U. Uis greater than the inflection point voltage. The number of lithium ion batteries are galvanostatically discharged to the inflection point voltage at a second constant current I, in which I&#x3c;&#x3c;I. The number of lithium ion batteries are rested for a second rest time Tand the batteries are screened based on a self-discharge of the number of lithium ion batteries.

Method for screening lithium ion battery

The present disclosure provides an electrolyte additive. The electrolyte additive comprises: maleimide derivative, bis-maleimide derivative, or combinations there of The structural formulas of maleimide derivative and bis-maleimide derivative respectively are: wherein, R, Rare selected from hydrogen atom and halogen atoms, Ris selected from silicon containing group, nitrogen containing group, fluorine containing group, phosphorus containing group, and a repeating ethoxy group. The present disclosure also provides an electrolyte liquid and a lithium ion battery using the electrolyte additive.

Electrolyte additive, electrolyte and lithium ion battery using the same

A method for making a cathode active material of a lithium ion battery is disclosed. In the method, LiMPOparticles and LiNPOparticles are provided. The LiMPOparticles and LiNPOparticles both are olivine type crystals belonged to a pnma space group of an orthorhombic crystal system, wherein M represents Fe, Mn, Co, or Ni, N represents a metal element having a +2 valence, and N is different from M. The LiMPOparticles and the LiNPOparticles are mixed together to form a precursor. The precursor is calcined to form LiMNPOparticles, wherein 0&#x3c;x&#x3c;1.

Method for making cathode active material of lithium ion battery

A method for making a sulfur-graphene composite material is provided. In the method, an elemental sulfur solution and a graphene dispersion are provided. The elemental sulfur solution includes a first solvent and an elemental sulfur dissolved in the first solvent. The graphene dispersion includes a second solvent and graphene sheets dispersed in the second solvent. The elemental sulfur solution is added to the graphene dispersion, a number of elemental sulfur particles are precipitated and attracted to a surface of the graphene sheets to form the sulfur-graphene composite material. The sulfur-graphene composite material is separated from the mixture.

Method for making sulfur-graphene composite material

A method for making a lithium ion battery anode active material comprising: providing silicon particles and a silane coupling agent, wherein the silane coupling agent comprises a hydrolysable functional group and an organic functional group; mixing the silicon particles and the silane coupling agent in water to obtain a first mixture; adding a monomer or oligomer to the first mixture to obtain a second mixture, the surfaces of the silicon particles being coated with a polymer layer by in situ polymerization method to obtain silicon polymer composite material, the monomer or the oligomer reacting with the organic functional group of the silane coupling agent in a polymerization, thereby a generated polymer layer being chemically grafted on the surfaces of the silicon particles; and heating the silicon polymer composite material to carbonize the polymer layer to form a carbon layer coated on the surfaces of the silicon particles.

Method for making lithium ion battery anode active material

A method for making lithium iron phosphate is provided. A lithium chemical compound, a ferrous chemical compound, and a phosphate-radical chemical compound are mixed in an organic solvent to form a mixture. The mixture is solvothermal reacted in a solvothermal reactor at a predetermined temperature. A protective gas is introduced into the solvothermal reactor during the solvothermal reaction to increase a pressure in the solvothermal reactor to a level higher than a self-generated pressure of the solvothermal reaction.

Method for making lithium iron phosphate

A solid electrolyte includes an interpenetrating polymer network and a lithium salt dispersed in the interpenetrating polymer network. The interpenetrating polymer network includesCH&#x2014;CHOsegments, and is formed by polymerizing a first monomer R&#x2014;OCH&#x2014;CH&#x2014;OR, a second monomer R&#x2014;OCH&#x2014;CH&#x2014;ORand an initiator. Each 'R', 'R' and &#x201c;R&#x201d; includes &#x2014;C&#x2550;C&#x2014; group or &#x2014;C&#x2261;C&#x2014; group. The &#x201c;R. . . &#x201d; includes an alkyl group or a hydrogen atom. The &#x201c;m&#x201d; and &#x201c;n&#x201d; are integer. Molecular weights of the first monomer and the second monomer are more than or equal to 100, and less than or equal to 800. The first monomer is less than or equal to 50% of the second monomer by weight. The lithium salt is less than or equal to 10% the second monomer by weight. A lithium based battery using the solid electrolyte is also provided.

Solid electrolyte and lithium based battery using the same

A method for making a cathode active material of a lithium ion battery, the cathode active material being represented by a chemical formula of Li[(NiCoMn)Mo]O, wherein 0&#x3c;x&#x2266;0.05. Source liquid solutions of Li, Ni, Co, Mn, and Moare mixed in stoichiometric ratio in a multi-carboxylic acid solution to form a solution. The solution is heated at 50&#xb0; C. to 80&#xb0; C. to form a wet gel. The wet gel is spray dried to form a dry gel. The dry gel is heated at a first temperature and then at a second temperature, the first temperature is in a range of 400&#xb0; C. to 500&#xb0; C., the second temperature is in a range of 750&#xb0; C. to 850&#xb0; C.

Cathode active material and method for making the same

A method for making a lithium battery cathode composite is provided. A mixed solution including a solvent, an iron salt, and a phosphate is provided. An alkaline solution is added in the mixed solution until the mixed solution has a pH value in a range from about 1.5 to about 5. The mixed solution is stirred to react the iron salt with the phosphate to form a number of iron phosphate precursor particles. The iron phosphate precursor particles are heated. A lithium source solution, a reducing agent, and the iron phosphate precursor particles are mixed to form a lithium iron phosphate precursor slurry. Outer surfaces of the lithium vanadium phosphate particles are coated with the lithium iron phosphate precursor.

Method for making lithium battery cathode composite material of lithium iron phosphate/lithium vanadium phosphate composite

A lithium ion battery includes a cathode, an anode, and an electrolyte sandwiched between the cathode and the anode. The cathode includes a cathode active material. The anode is spaced from the cathode. The cathode active material includes a sulfur grafted poly(pyridinopyridine). The sulfur grafted poly(pyridinopyridine) includes a poly(pyridinopyridine) matrix and sulfur dispersed in the poly(pyridinopyridine) matrix. The sulfur includes a number of poly-sulfur groups or a number of elemental sulfur particles dispersed in the poly(pyridinopyridine) matrix. The electrolyte is a gel electrolyte.

Lithium ion battery

A method for cycling a sulfur composite lithium ion battery includes a step of charging and discharging the sulfur composite lithium ion battery at a first voltage range between a predetermined highest voltage and a predetermined lowest voltage. The lithium ion battery includes an electrode active material. The electrode active material includes a sulfur composite. The step of charging and discharging satisfies at least one conditions of (1) and (2): (1) the predetermined lowest voltage of the first voltage range is larger than a discharge cutoff voltage of the sulfur composite; and (2) the predetermined highest voltage of the first voltage range is smaller than a charge cutoff voltage of the sulfur composite. A method for using a sulfur composite as an electrode active material of a lithium ion battery is also disclosed.

Voltage cycling method for lithium ion battery comprising sulfur polymer composite in active material

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Beijing, China

Jian-Jun Li