摘要:
Disclosed is a fabrication method for an electrode active material, and a lithium battery comprising an electrode active material fabricated therefrom. The fabrication method for an electrode active material comprises preparing an aqueous solution by dissolving a precursor that can simultaneously undergo positive ion substitution and surface-reforming processes in water; mixing and dissolving raw materials for an electrode active material with a composition ratio for a final electrode active material in the aqueous solution, thereby preparing a mixed solution; removing a solvent from the mixed solution, thereby forming a solid dry substance; thermal- processing the solid dry substance; and crushing the thermal-processed solid dry substance.
摘要:
Disclosed are a silicon thin film anode for a lithium secondary battery having enhanced cycle characteristics and capacity and a preparation method thereof. A preparation method for a silicon thin film anode for a lithium secondary battery, comprises: preparing a collector including a metal; forming an anode active material layer including a silicon on the collector; forming one or more interface stabilizing layer, by annealing the collector and the anode active material layer under one of an inert atmosphere, a reduced atmosphere, and a vacuum atmosphere to react a metallic component of at least one of the collector and the anode active material layer with a silicon component of the anode active material layer at an interface therebetween; and forming a carbon coating layer on the anode active material layer by performing an annealing process in a hydrocarbon atmosphere.
摘要:
Disclosed is a fabrication method for an electrode active material, and a lithium battery comprising an electrode active material fabricated therefrom. The fabrication method for an electrode active material comprises preparing an aqueous solution by dissolving a precursor that can simultaneously undergo positive ion substitution and surface-reforming processes in water; mixing and dissolving raw materials for an electrode active material with a composition ratio for a final electrode active material in the aqueous solution, thereby preparing a mixed solution; removing a solvent from the mixed solution, thereby forming a solid dry substance; thermal-processing the solid dry substance; and crushing the thermal-processed solid dry substance.
摘要:
Disclosed are a silicon thin film anode for a lithium secondary battery having enhanced cycle characteristics and capacity and a preparation method thereof. A preparation method for a silicon thin film anode for a lithium secondary battery, comprises: preparing a collector including a metal; forming an anode active material layer including a silicon on the collector; forming one or more interface stabilizing layer, by annealing the collector and the anode active material layer under one of an inert atmosphere, a reduced atmosphere, and a vacuum atmosphere to react a metallic component of at least one of the collector and the anode active material layer with a silicon component of the anode active material layer at an interface therebetween; and forming a carbon coating layer on the anode active material layer by performing an annealing process in a hydrocarbon atmosphere.
摘要:
A system for chemical vapor deposition at ambient temperature using electron cyclotron resonance (ECR) comprising: an ECR system; a sputtering system for providing the ECR system with metal ion; an organic material supply system for providing organic material of gas or liquid phase; and a DC bias system for inducing the metal ion and the radical ion on a substrate is provided, and a method for fabricating metal composite film comprising: a step of providing a process chamber with the gas as plasma form using the ECR; a step of providing the chamber with the metal ion and the organic material; a step of generating organic material ion and radical ion by reacting the metal ion and the organic material with the plasma; and a step of chemically compounding the organic material ion and the radical ion after inducing them on a surface of a specimen is also provided.
摘要:
Disclosed are a recovery for a metaloxidic cathodic active material for a lithium ion secondary battery and a synthesis thereof by the recovery method, wherein the recovery method includes (a) dissolving a cathodic active material from a waste lithium ion secondary battery using sulfuric acid solution containing sulfurous acid gas to generate a solution containing metal ions, (b) injecting sodium hydroxide solution and ammonia solution in the solution containing the metal ions to fabricate an electrode active material precursor, and (c) filtrating the active material precursor, followed by drying and grinding, thus to fabricate a solid-state cathodic active material precursor, and the synthesis method is achieved by mixing the electrode active material precursor fabricated according to the recovery method with lithium carbonate or lithium hydroxide, followed by heat treatment, to generate a metaloxidic cathodic active material.
摘要:
Disclosed are a recovery for a metaloxidic cathodic active material for a lithium ion secondary battery and a synthesis thereof by the recovery method, wherein the recovery method includes (a) dissolving a cathodic active material from a waste lithium ion secondary battery using sulfuric acid solution containing sulfurous acid gas to generate a solution containing metal ions, (b) injecting sodium hydroxide solution and ammonia solution in the solution containing the metal ions to fabricate an electrode active material precursor, and (c) filtrating the active material precursor, followed by drying and grinding, thus to fabricate a solid-state cathodic active material precursor, and the synthesis method is achieved by mixing the electrode active material precursor fabricated according to the recovery method with lithium carbonate or lithium hydroxide, followed by heat treatment, to generate a metaloxidic cathodic active material.
摘要:
The present invetion relates to a UV-cured multi-component polymer blend electrolyte, lithium secondary battery and their fabrication method, wherein the UV-cured multi-component polymer blend electrolyte, comprises: A) function-I polymer obtained by curing ethyleneglycoldi-(meth)acrylate oligomer of formula 1 by UV irradiation, CH2═CR1COO(CH2CH2O)nCOCR2═CH2 (1) wherein,R1 and R2 are independently a hydrogen or methyl group, and n is an integer of 3-20;B) function-II polymer selected from the group consisting of PAN-based polymer, PMMA-based polymer and mixtures thereof; C) function-III polymer selected from the group consisting of PVdF-based polymer, PVC-based polymer and mixtures thereof; and D) organic electrolyte solution in which lithium salt is dissolved in a solvent.
摘要:
The present invention relates to a multi-layered, UV-cured polymer electrolyte and lithium secondary battery comprising the same, wherein the polymer electrolyte comprises: A) a separator layer formed of polymer electrolyte, PP, PE, PVdF or non-woven fabric, wherein the separator layer having two surfaces; B) at least one gelled polymer electrolyte layer located on at least one surface of the separator layer comprising: a) polymer obtained by curing ethyleneglycoldi(meth)acrylate oligomer of the formula (I) by UV irradiation: CH2═CR1COO(CH2CH2O)nCOCR2═CH2 wherein, R1 and R2 are independently hydrogen or methyl group, and n is a integer of 3–20; and b) at least one polymer selected from the group consisting of PVdF-based polymer, PAN-based polymer, PMMA-based polymer and PVC-based polymer; and C) organic electrolyte solution in which lithium salt is dissolved in a solvent.
摘要翻译:本发明涉及包含该聚合物电解质的多层紫外线固化的聚合物电解质和锂二次电池,其中所述聚合物电解质包括:A)由聚合物电解质,PP,PE,PVdF或无纺布形成的隔离层, 其中所述隔离层具有两个表面; B)位于分离器层的至少一个表面上的至少一个胶凝聚合物电解质层,包括:a)通过UV照射固化式(I)的乙二醇二(甲基)丙烯酸酯低聚物获得的聚合物:CH 2 CO 2(CH 2 CH 2 CH 2)n CO 2 CH 2 CO 2(CH 2 CH 2 CH 2) 其中,R 1和R 2各自独立地为氢或甲基,n为3-20的整数; 和b)至少一种选自PVdF基聚合物,PAN基聚合物,基于PMMA的聚合物和基于PVC的聚合物的聚合物; 和C)其中锂盐溶解在溶剂中的有机电解质溶液。
摘要:
Disclosed are a pyrrolidinium type sulphonated zwitterion, a method of preparing the same, a lithium salt prepared by using the same, a method of preparing the salt, an electrolytic composition containing the salt and a lithium secondary battery including the electrolytic composition. Since the pyrrolidinium type sulphonated zwitterions prepared according to the invention are thermally and electrochemically stable, the lithium salt prepared by using the same exhibits a lower hygroscopicity than the conventional lithium salts and strong thermal and electrochemical stabilities. When the lithium salt of the invention is dissolved in an organic solvent independently or together with the ionic liquid, excellent conductivity and electrochemical stability are exhibited. Accordingly, the lithium salt of the invention is very suitable for the electrolyte of the lithium secondary battery.