Abstract:
The present invention relates to a manifold having a leakage prevention unit for blocking the leakage of an electrolyte solution, an integrated complex electrode cell and a redox flow battery including the same. By having a first leakage prevention unit and a second leakage prevention unit, the electrolyte solution can be prevented from leaking through though-holes, or permeating into through-holes on the other side after infiltrating between gaskets. Thereby, the lifespan of the battery can be maintained and charge-discharge efficiency and energy efficiency can be prevented from decreasing by the increase in charging time or decrease in discharging time.
Abstract:
본 발명은 그라파이트 산화물 및 그래핀 나노시트 제조 방법에 관한 것으로, 그라파이트 1g당 10~500ml의 황산과 그라파이트 1g당 1~100ml의 인산을 혼합한 후, 과망간산칼륨과 과산화수소를 첨가하여 동결건조시켜 제조되는 것을 특징으로 한다. 본 발명에 의하면 그라파이트 합성시 발생되는 반응열을 용이하게 제어할 수 있고,합성된 그라파이트 산화물의 자연적 환원을 방지하여 노란색의 그라파이트 산화물 분말이 건조 후 유지될 수 있는 장점이 있다.
Abstract:
본 발명은 알코올의 수율을 높인 금속 촉매를 제조하는 방법에 관한 것으로서, 합성 가스로부터 알코올을 제조하기 위한 금속 촉매를 제조하는 방법에 있어서, 금속 촉매를 형성하는 1단계; 및 상기 금속 촉매에 감마선을 조사하는 2단계를 포함한다. 본 발명은, 감마선을 조사하여 금속 촉매를 안정화함으로써, 합성 가스와의 촉매 반응에서 탄화수소의 생성을 억제하여 알코올의 수율이 향상된 금속 촉매를 제공하는 효과가 있다.
Abstract:
The present invention relates to an electrolyte solution for a redox flow battery including total organic active materials (total organic redox couples), and a redox flow battery using the same. The active materials used in the electrolyte solution for a redox flow battery according to the present invention uses the oxidation-reduction reaction of a nonmetallic organic compound instead of the oxidation-reduction reaction of metal ions, thereby achieving effects of enabling the battery to have high voltage and high capacity.
Abstract:
The present invention relates to a cathode catalyst for a lithium-air battery, a method for producing the same, and a lithium-air battery comprising the same. The method for producing a cathode catalyst for a lithium-air battery is characterized by comprising: a first step of mixing precursors of carbon nanofibers and precursors of metal oxides with a solvent to produce a solution of electrospinning; a second step of electrospinning the solution of electrospinning produced in the first step to form a metal oxide-carbon nanofiber complex; and a third step of treating the metal oxide-carbon nanofiber complex formed in the second step by heat. According to the cathode catalyst for a lithium-air battery produced by the method of the present invention, the oxygen reaction is accelerated in a cathode of a lithium-air battery to lower charging and discharging overvoltage and raise energy efficiency.
Abstract:
The present invention relates to a manufacturing method of metal catalysts with enhanced alcohol yield, and a manufacturing method of a metal catalyst to produce alcohol from synthetic gas. The manufacturing method comprises a first step of forming a metal catalyst and a second step of irradiating the metal catalyst with gamma rays. The present invention stabilizes the metal catalyst by emitting the gamma rays, thereby suppressing hydrocarbon generation and accordingly there is an effect of providing a metal catalyst with enhanced alcohol yield.
Abstract:
본 발명은 레독스 커플 담지 나노입자 및 이를 포함하는 레독스 흐름전지에 관한 것이다. 본 발명에 따른 레독스 커플 담지 나노입자는 레독스 흐름전지용 레독스 커플을 포함하는 용액에 미세기공을 포함하는 나노입자를 담지한 후 건조시켜 제조된 것을 특징으로 한다. 이러한 레독스 커플 담지 나노입자를 레독스 흐름전지의 양극전해질 또는 음극전해질 중 적어도 어느 한 곳에 포함될 수 있다. 상기 레독스 커플 담지 나노입자는 미세 기공을 가지고 있어 나노입자 기공 내부 또는 표면에 많은 레독스 커플을 포함하고 있어 레독스 커플의 고농도화가 가능할 뿐만 아니라 멤브레인을 통한 레독스 커플의 투과(cross-over)를 막을 수 있어 고에너지밀도 및 고효율 레독스 흐름전지를 제공할 수 있다.
Abstract:
PURPOSE: A surface modified electrode material for a capacitor and a manufacturing method are provided to improve lifetime and output characteristics at room temperature by forming a ZnOHF(Zinc hydroxyfluoride) coating layer. CONSTITUTION: A solution having a dissolved zinc starting material and an electrode material are mixed. A first mixture is manufactured(S10). A surface modified source of a material fluorine starting material is added to the first mixture. A second mixture is manufactured(S20). The second mixture is maintained at a constant temperature in order to form a coating layer on a surface of an electrode material(S30). A solvent is removed from the second mixture(S40). [Reference numerals] (AA) Start; (BB) End; (S10) Mixing of a zinc starting material and an electrode material; (S20) Adding of a fluorine material to the first mixture- a second mixture; (S30) Aging of the second mixture; (S40) Removing of an solvent from the second mixture
Abstract:
PURPOSE: A capacitor electrode and a capacitor including the same are provided to implement high energy density by thermally processing lithium and manganese starting materials at low temperatures to minimize impurities. CONSTITUTION: Lithium starting materials are mixed with manganese starting materials. The mixed materials are thermally processed at 300 to 600 degrees centigrade for 1 to 40 hours under an air atmosphere or an oxygen atmosphere.