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    • 11. 发明公开
    • 수동급기 직접 메탄올 연료전지 시스템의 운전 제어방법
    • 被动空气呼吸直接甲醇燃料电池系统的操作方法
    • KR1020120097201A
    • 2012-09-03
    • KR1020110016622
    • 2011-02-24
    • 서울대학교산학협력단주식회사 엑스에프씨
    • 장익황차석원이주형
    • H01M8/04G01R31/36H01M8/10G05D7/00
    • Y02E60/523
    • PURPOSE: An operation control method of a passive air-breathing direct methanol fuel cell is provided to have constant stack performance without influence to external environmental change like temperature, humidity, etc. CONSTITUTION: An operation control method of a passive air-breathing direct methanol fuel cell comprises: a step of measuring and detecting anode output voltage of a fuel cell stack, a cathode output voltage, external temperature and external humidity; a step of respectively comparing the detected external temperature and the external humidity with a standard temperature and a standard humidity, and calculating voltage difference between the anode voltage and the cathode voltage; and a step of controlling flow or concentration of methanol fuel supplied on the basis of the differences of temperature, humidity, and voltage. [Reference numerals] (A01) Measuring external temperature; (A02) Is the temperature below standards?; (A03) Measuring external humidity; (A04) Is the humidity below standards?; (A05) Is the voltage above standards?; (AA) In case only using methanol; (BB) Start; (CC,EE,JJ) No; (DD,FF,KK) Yes; (GG) Maintain the flux of methanol; (HH) Maintain the operation state; (II) Reduce the flux of methanol; (LL) Reduce flooding and crossover; (MM) Increase the flux of methanol; (NN) Generation of a flooding phenomenon of a catalyst layer in an air electrode and generation of a crossover phenomenon of ethanol of the air electrode; (OO) Tempeoraily discontinue the flow of methanol; (PP) End
    • 目的:提供一种无源呼吸式直接甲醇燃料电池的操作控制方法,具有恒定的堆叠性能,不受诸如温度,湿度等外部环境变化的影响。构成:被动呼吸式直接甲醇的操作控制方法 燃料电池包括:测量和检测燃料电池堆的阳极输出电压,阴极输出电压,外部温度和外部湿度的步骤; 分别将检测到的外部温度和外部湿度与标准温度和标准湿度进行比较,并计算阳极电压和阴极电压之间的电压差的步骤; 以及基于温度,湿度和电压的差异来控制供应的甲醇燃料的流动或浓度的步骤。 (附图标记)(A01)测量外部温度; (A02)温度是否低于标准? (A03)测量外部湿度; (A04)湿度是否低于标准? (A05)电压是否高于标准? (AA)仅使用甲醇的情况; (BB)开始; (CC,EE,JJ)否; (DD,FF,KK)是; (GG)保持甲醇通量; (HH)维持运行状态; (二)降低甲醇通量; (LL)减少淹水和交叉; (MM)增加甲醇通量; (NN)在空气极中产生催化剂层的淹水现象,并产生空气极的乙醇的交叉现象; (OO)Tempeoraily中止甲醇流动; (PP)结束
    • 13. 发明公开
    • 원자막 증착법으로 형성된 이트리아-안정화 지르코니아 기능층을 포함하는 세리아계 전해질 및 이를 포함하는 고체 산화물 연료전지
    • 基于CERIA的双层电解质包含通过原子层沉积形成的YTTRIA稳定的ZIRCORNIA功能层和包含其的固体氧化物燃料电池
    • KR1020120137917A
    • 2012-12-24
    • KR1020110057084
    • 2011-06-13
    • 서울대학교산학협력단주식회사 엑스에프씨
    • 차석원지영석장익황이주형
    • H01M8/12H01M8/02C04B35/64C23C16/455
    • Y02P70/56H01M8/12C04B35/64C23C16/455H01M8/02
    • PURPOSE: A preparing method of a functional layer-comprising ceria-based electrolyte is provided to minimize resistance loss by depositing an YSZ film with relatively high resistance to oxygen ions into a thin thickness, and to facilitate the thickness control of the functional layer. CONSTITUTION: A preparing method of a functional layer-comprising ceria-based electrolyte comprises a step of forming an YSZ functional layer through an atomic layer deposition. The functional layer formation step consists of repeating 1-30 times of an yttria formation cycle and a zirconia formation cycle. The yttria formation cycle comprises: a step of supplying an yttria precursor into a chamber; a step of purging the chamber; a step of supplying the oxidant into a chamber; and a step of purging the inside of chamber. The zirconia formation cycle comprises: a step of supplying one kind of zirconia precursors into the chamber; a step of purging the chamber; and a step of supplying oxidant into the chamber; and a step of purging the inside of the chamber.
    • 目的:提供一种包含二氧化铈的电解质的功能层的制备方法,通过将具有相对较高的氧离子耐受性的YSZ膜沉积成薄的厚度来最小化电阻损耗,并且便于功能层的厚度控制。 构成:包含二氧化铈的电解质的功能层的制备方法包括通过原子层沉积形成YSZ功能层的步骤。 功能层形成步骤由重复1-30倍的氧化钇形成循环和氧化锆形成循环组成。 氧化钇形成循环包括:将氧化钇前体供应到室中的步骤; 清洗室的步骤; 将氧化剂供应到室中的步骤; 以及清洗室内部的步骤。 氧化锆形成循环包括:将一种氧化锆前体供应到室中的步骤; 清洗室的步骤; 以及向室内供给氧化剂的步骤; 以及吹扫室内部的步骤。
    • 17. 发明公开
    • 그라파이트 시트를 이용한 연료전지용 분리판의 제조방법
    • 使用石墨片作为材料制造燃料电池中的分离器的方法
    • KR1020140018457A
    • 2014-02-13
    • KR1020120080096
    • 2012-07-23
    • 주식회사 엑스에프씨
    • 이주형박태현장익황차석원이윤호
    • H01M8/02H01M8/10B30B9/00
    • Y02P70/56H01M8/02B30B9/00H01M8/10
    • The present invention relates to a method for manufacturing a separator for a fuel cell using a graphite sheet as a material, which has electroconductivity and thermoconductivity improved through excellent process efficiency by forming an integrated channel via stamping. According to the present invention, a separator having excellent properties such as electroconductivity and thermoconductivity can be manufactured by using graphite as a material of the separator. In addition, process costs are low and mass production is possible because the separator having a channel formed thereon can be formed via a simplified stamping process without needing complex mechanical processing. Also, the present invention can reduce additional components of a fuel cell because the graphite sheet is widely used for a high temperature gasket or sealant.
    • 本发明涉及一种使用石墨片作为材料的燃料电池用隔板的制造方法,其特征在于,通过冲压形成集成通道,通过优异的加工效率提高导电性和导热性。 根据本发明,通过使用石墨作为隔膜的材料,可以制造出具有优异的性能例如导电性和导热性的隔板。 此外,由于具有形成在其上的通道的隔膜可以通过简单的冲压工艺形成,而不需要复杂的机械加工,因此工艺成本低,可以批量生产。 而且,由于石墨片被广泛用于高温垫圈或密封剂,本发明可以减少燃料电池的附加部件。
    • 20. 发明公开
    • 고체 산화물 연료전지용 전해질막, 그 제조방법 및 이를 채용한 연료전지
    • 固体氧化物电解质膜及其制造方法及使用其的燃料电池
    • KR1020130064359A
    • 2013-06-18
    • KR1020110130940
    • 2011-12-08
    • 주식회사 엑스에프씨
    • 장익황지상훈이윤호차석원이주형
    • H01M8/12H01M8/02
    • Y02P70/56H01M8/12H01M8/02
    • PURPOSE: An electrolyte membrane for a solid oxide fuel cell is provided to include a dense thin film layer and a porous thin film layer, thereby maximizing the area occurred for electrochemical reaction, and improving the performance of the fuel cell. CONSTITUTION: An electrolyte membrane for a solid oxide fuel cell consists of two deposited layers. The two deposited layers are formed from one selected from oxygen ion conductive solid oxide, hydrogen ion conductive solid oxide, conductive solid oxide of oxygen ion, or a hydrogen ion. The average size of the crystal grain of the deposited layer near the anode is 5-100 nm. The average size of the crystal grain of the deposited layer near the cathode is 100-200 nm. The difference of the average size of the crystal grain of the two deposited layer is 50-195 nm.
    • 目的:提供一种固体氧化物燃料电池用电解质膜,其包括致密的薄膜层和多孔薄膜层,从而最大化电化学反应发生的面积,并提高燃料电池的性能。 构成:用于固体氧化物燃料电池的电解质膜由两个沉积层组成。 两个沉积层由选自氧离子导电固体氧化物,氢离子导电固体氧化物,氧离子的导电固体氧化物或氢离子形成。 阳极附近的沉积层的晶粒的平均尺寸为5-100nm。 阴极附近的沉积层的晶粒的平均尺寸为100-200nm。 两个沉积层的晶粒的平均尺寸的差为50-195nm。