Abstract:
본발명은이온교환법을이용한단사정계결정구조의나트륨바나듐인산염계전극재료및 그제조방법에관한것으로, 보다구체적으로는합성이어려운단사정계나트륨바나듐인산염계전극재료를이온교환법을이용하여리튬과나트륨을교환함으로써고용량의전극물질을제조할수 있는제조방법및 그방법으로제조된단사정계결정구조의나트륨바나듐인산염계전극재료에관한것이다. 본발명에의하면이온교환법을이용하여리튬과나트륨을교환함으로써합성이어려운단사정계나트륨바나듐인산염계전극재료를제조할수 있다. 또한, 본발명의제조방법에의하면고용량의고전압화된전극재료를간단한공정을통해제조할수 있으며, 그방법으로제조된단사정계나트륨바나듐인산염계전극재료는나트륨이차전지에적용할수 있는효과가있다.
Abstract:
PURPOSE: A method for oriented films and single crystals of lanthanum silicates by abnormal grain growth are provided to manufacture a lanthanum silicate having high conductivity at 200-300.C. CONSTITUTION: The matrix powder of lanthanum silicate having La series power and Si series power is manufactured(S100). The seed powder of the lanthanum silicate is manufactured independently of the process of manufacturing the matrix powder(S200). The seed powder of the lanthanum silicate and matrix powder is mixed and is crystal growth(S300-S400).
Abstract:
A cathode material of a lithium-ion battery and a manufacturing method thereof is provided to realize high-capacity while suppressing transition to a spinel phase by bonding oxygen through the partial substitution of transition metal having low valent metal in a LiM'M''O3 structure, or model metal. A method for manufacturing a cathode material of a lithium secondary battery comprises (S110) a step for manufacturing a lithium precursor, M' precursor and M'' precursor by dissolving the lithium precursor, M' precursor and M'' precursor in distilled water respectively; (S120) a step for manufacturing the M'M'' precursor solution by adding M'' precursor solution in M' precursor; (S130) a step for manufacturing the lithium M'M'' precursor solution by adding the lithium precursor solution in the M'M'' precursor solution; (S140) a step for agitating the lithium M'M'' precursor solution; (S150) a step for obtaining parent powder by putting the agitated lithium M'M'' precursor solution in an oven, and evaporating water from the M'M'' precursor solution; (S160) a step for pulverizing the parent powder and to heating it to the first temperature in the atmosphere; (S170) a step for heating the parent powder at the second temperature higher than the first temperature and cooling it; and (S180) a step for obtaining a cathode material of a lithium secondary battery by washing the cooled parent powder with distilled water and drying the washed parent powder.
Abstract:
A methane and oxygen generation device, and a method for preparing methane and oxygen by using the device are provided to generate useful methane and oxygen from carbon dioxide and water and to lower the amount of carbon dioxide inducing the greenhouse effect. A methane and oxygen generation device(100) comprises a cathode(110) which is connected with the negative electrode of a power source device(150); an anode(120) which is connected with the positive electrode of a power source device; and a proton electrolyte layer(130) which is located between the cathode and the anode, wherein a carbon dioxide-methane reaction layer(140) is generated between the cathode and the proton electrolyte layer by the reaction of the proton electrolyte layer and carbon dioxide, the cathode is supplied with carbon dioxide to generate methanol and the anode is supplied with water to generate oxygen.
Abstract:
본발명은급속충방전이가능한나트륨바나듐인산염계전극활물질의제조방법및 그방법으로제조된이차전지용나트륨바나듐인산염계전극활물질에관한것으로, 보다구체적으로는나트륨이온전지의전극활물질이갖는단점을극복하기위해나트륨전극소재와인화니켈과의복합체를구성함으로써급속충방전이가능한나트륨바나듐인산염계전극활물질의제조방법에관한것이다. 본발명의제조방법에의하면나트륨바나듐인산염계전극소재와전기전도도가우수한인화니켈과의복합체를구성함으로써급속충방전이가능한나트륨바나듐인산염계전극활물질을제조할수 있다. 또한, 본발명에의해제조된나트륨바나듐인산염계전극활물질은고출력특성을발현하는나트륨이차전지에적용할수 있는효과가있다.
Abstract:
본발명은이온교환법을이용한단사정계결정구조의나트륨바나듐인산염계전극재료및 그제조방법에관한것으로, 보다구체적으로는합성이어려운단사정계나트륨바나듐인산염계전극재료를이온교환법을이용하여리튬과나트륨을교환함으로써고용량의전극물질을제조할수 있는제조방법및 그방법으로제조된단사정계결정구조의나트륨바나듐인산염계전극재료에관한것이다. 본발명에의하면이온교환법을이용하여리튬과나트륨을교환함으로써합성이어려운단사정계나트륨바나듐인산염계전극재료를제조할수 있다. 또한, 본발명의제조방법에의하면고용량의고전압화된전극재료를간단한공정을통해제조할수 있으며, 그방법으로제조된단사정계나트륨바나듐인산염계전극재료는나트륨이차전지에적용할수 있는효과가있다.