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    • 1. 发明申请
    • Flow-Field Plate and Fuel Cell Stack Using the Same
    • 流场板和燃料电池堆栈使用它
    • US20080305382A1
    • 2008-12-11
    • US11910830
    • 2006-03-29
    • Junqing DongYong Zhou
    • Junqing DongYong Zhou
    • H01M8/02H01M2/00
    • H01M8/2483H01M8/0258H01M8/026H01M8/0263H01M8/0271H01M8/0284H01M8/241H01M8/248H01M2008/1095
    • Disclosed is a flow-field plate and fuel cell stack using the same. The flow-field plate (19) of the present invention comprises a center hole (5) formed at the center of flow-field plate, a inlet (6) and a outlet (7) formed on two positions near the outer edge of flow-field plate, and flow grooves distributing around the center hole (5) and communicating with the inlet (6) and outlet (7) on one side of flow-field plate. Since the flow-field plate according to the present invention comprises flow grooves distributing around the center hole and communicating with the inlet and outlet, which is benefit for oxidant diffusion, there is no “dead-end” on the flow-field plate and reactants may distribute uniformly to each part of flow-field plate. Furthermore, resultants generated from reaction, such as water, nitrogen, carbon dioxide, etc., may be discharged in time and not accumulate on flow-field plate. Therefore, the reactant utilization ratio, the fuel cell performances and its service life may be improved.
    • 公开了一种使用该流场板和燃料电池堆的流场板和燃料电池堆。 本发明的流场板(19)包括形成在流场板中心的中心孔(5),在流体外缘附近的两个位置上形成的入口(6)和出口(7) 以及围绕中心孔(5)分布并与流场板一侧的入口(6)和出口(7)连通的流动槽。 由于根据本发明的流场板包括围绕中心孔分布并与入口和出口连通的流动槽,这有利于氧化剂扩散,所以在流场板和反应物上没有“死端” 可均匀地分布到流场板的每个部分。 此外,由反应生成的产物如水,氮,二氧化碳等可能会及时排出,而不会积聚在流场板上。 因此,可以提高反应物利用率,燃料电池性能及其使用寿命。
    • 2. 发明授权
    • Flow-field plate and fuel cell stack using the same
    • 流场板和燃料电池堆使用相同
    • US07846608B2
    • 2010-12-07
    • US11910865
    • 2006-03-29
    • Junqing DongYong Zhou
    • Junqing DongYong Zhou
    • H01M2/38H01M2/40H01M8/24
    • H01M8/2483H01M8/0258H01M8/026H01M8/0263H01M8/0271H01M8/0284H01M8/241H01M8/248H01M2008/1095
    • Disclosed is a flow-field plate and fuel cell stack using the same. The flow-field plate of the present invention comprises a center hole (5) formed at the center of the flow-field plate, a inlet (6) and a outlet (7) formed on two positions near the outer edge of the flow-field plate, and flow grooves extending radially from the center hole (5) on one side of the flow-field plate. Since the flow-field plate according to the present invention may comprise flow grooves extending radially and having short flow path, which is benefit for reactants diffusion, there is no “dead-end” on the flow-field plate and reactants may distribute uniformly to each part of flow-field plate. Furthermore, resultants generated from reaction, such as water, nitrogen, carbon dioxide, etc., may be discharged in time and not accumulate on flow-field plate. Therefore, the reactant utilization ratio, the fuel cell performances and its service life may be improved.
    • 公开了一种使用该流场板和燃料电池堆的流场板和燃料电池堆。 本发明的流场板包括形成在流场板中心的中心孔(5),在流动场板的外缘附近的两个位置上形成的入口(6)和出口(7) 场板,以及从流场板一侧的中心孔(5)径向延伸的流动槽。 由于根据本发明的流场板可以包括径向延伸并具有短流路的流槽,这有利于反应物扩散,所以在流场板上没有“死端”,反应物可以均匀地分布到 流场板各部分。 此外,由反应生成的产物如水,氮,二氧化碳等可能会及时排出,而不会积聚在流场板上。 因此,可以提高反应物利用率,燃料电池性能及其使用寿命。
    • 3. 发明申请
    • FLOW-FIELD PLATE AND FUEL CELL STACK USING THE SAME
    • 流场板和燃料电池堆叠使用它
    • US20090214931A1
    • 2009-08-27
    • US11910865
    • 2006-03-29
    • Junqing DongYong Zhou
    • Junqing DongYong Zhou
    • H01M2/14H01M2/02
    • H01M8/2483H01M8/0258H01M8/026H01M8/0263H01M8/0271H01M8/0284H01M8/241H01M8/248H01M2008/1095
    • Disclosed is a flow-field plate and fuel cell stack using the same. The flow-field plate of the present invention comprises a center hole (5) formed at the center of the flow-field plate, a inlet (6) and a outlet (7) formed on two positions near the outer edge of the flow-field plate, and flow grooves extending radially from the center hole (5) on one side of the flow-field plate. Since the flow-field plate according to the present invention may comprise flow grooves extending radially and having short flow path, which is benefit for reactants diffusion, there is no “dead-end” on the flow-field plate and reactants may distribute uniformly to each part of flow-field plate. Furthermore, resultants generated from reaction, such as water, nitrogen, carbon dioxide, etc., may be discharged in time and not accumulate on flow-field plate. Therefore, the reactant utilization ratio, the fuel cell performances and its service life may be improved.
    • 公开了一种使用该流场板和燃料电池堆的流场板和燃料电池堆。 本发明的流场板包括形成在流场板中心的中心孔(5),在流动场板的外缘附近的两个位置上形成的入口(6)和出口(7) 场板,以及从流场板一侧的中心孔(5)径向延伸的流动槽。 由于根据本发明的流场板可以包括径向延伸并且具有短流路的流槽,这有利于反应物扩散,所以在流场板上没有“死端”,反应物可以均匀地分布到 流场板各部分。 此外,由反应生成的产物如水,氮,二氧化碳等可能会及时排出,而不会积聚在流场板上。 因此,可以提高反应物利用率,燃料电池性能及其使用寿命。
    • 4. 发明申请
    • FUEL CELL SYSTEM AND CONTROL METHOD THEREOF
    • 燃料电池系统及其控制方法
    • US20090214901A1
    • 2009-08-27
    • US12096872
    • 2006-12-11
    • Junqing DongYong Zhou
    • Junqing DongYong Zhou
    • H01M8/04
    • H01M8/04589H01M8/04089H01M8/04186H01M8/04753H01M8/1011Y02E60/523
    • A fuel cell system and a control method thereof; said system comprises a fuel cell generator (5), a fuel supply unit (6), a gas supply unit (7), a detection unit (8), and a control unit (9); said detection unit (8) is for detecting the discharge parameter of said fuel cell generator (5); said control unit (9) is for controlling fuel supply from said fuel supply unit (6) and gas supply from said gas supply unit (7) in accordance with the discharge parameter detected by said detection unit (8); wherein, said detection unit (8) is a current detection device, and the discharge parameter of said fuel cell generator (5) detected by said detection unit (8) is the discharge current value. The present invention utilizes the discharge current output from the fuel cell generator as the main parameter to control the fuel/gas supply units; therefore, the control is more direct and effective. In addition, the present invention can also control the working duration of said fuel and gas supply units to operate intermittently in accordance with the said discharge current value.
    • 燃料电池系统及其控制方法; 所述系统包括燃料电池发生器(5),燃料供应单元(6),气体供应单元(7),检测单元(8)和控制单元(9)。 所述检测单元(8)用于检测所述燃料电池发生器(5)的放电参数; 所述控制单元(9)用于根据由所述检测单元(8)检测的放电参数,控制来自所述燃料供应单元(6)的燃料供应和来自所述气体供应单元(7)的气体供应; 其中,所述检测单元(8)是电流检测装置,并且由所述检测单元(8)检测的所述燃料电池发生器(5)的放电参数是放电电流值。 本发明利用从燃料电池发生器输出的放电电流作为主要参数来控制燃料/气体供应单元; 因此,控制更直接有效。 此外,本发明还可以根据所述放电电流值来控制所述燃料供给单元的工作持续时间间歇地动作。
    • 5. 发明授权
    • Negative electrodes for rechargeable batteries
    • 可充电电池用负极
    • US08133612B2
    • 2012-03-13
    • US10771010
    • 2004-02-02
    • Caisong ZouChuanfu WangJunqing Dong
    • Caisong ZouChuanfu WangJunqing Dong
    • H01M4/13H01M4/60H01M4/58H01M4/82H01M6/00
    • H01M4/0471C01B32/20C01P2004/61H01M4/366H01M4/587Y10T29/49115Y10T428/2982Y10T428/30
    • This invention relates to a negative electrode of a rechargeable battery. In particular, the active material for the negative electrode is a mixture of two types of graphite, graphite A and graphite B. Graphite A are of graphite granules having an average granule diameter between 10 and 40 μm, and a crystallite interlayer spacing, d002, between 0.335 and 0.342 nm. Graphite B are graphite granules with an average granule diameter between 5 and 30 μm and a crystallite interlayer spacing, d002, between 0.336 and 0.360 nm. The ratio of the weight of the graphite A and graphite B is between 25:75 to 80:20. To fabricate said negative electrode, take said mixture of graphite A and graphite B, add binder, dispersant, and solvent. Then stir to mix, coating the resultant mixture on a foil, heat to dry, and compress to form the negative electrode. A lithium ion rechargeable battery made with said negative electrode has high discharge capacity, long cycle life, excellent high current and safety characteristics. The manufacturing process for this negative electrode is simple and cheap and therefore, it is easy to implement for mass production.
    • 本发明涉及可再充电电池的负电极。 特别地,负极活性物质是两种类型的石墨,石墨A和石墨B的混合物。石墨A是石墨颗粒,其平均颗粒直径在10至40μm之间,微晶层间距d002, 在0.335和0.342nm之间。 石墨B是石墨颗粒,其平均颗粒直径在5至30μm之间,微晶层间距d002在0.336和0.360nm之间。 石墨A和石墨B的重量比在25:75至80:20之间。 为了制造所述负极,取石墨A和石墨B的混合物,加入粘合剂,分散剂和溶剂。 然后搅拌混合,将所得混合物涂覆在箔上,加热干燥,并压缩形成负极。 由所述负极制成的锂离子可充电电池具有高放电容量,较长的循环寿命,优异的高电流和安全特性。 该负极的制造方法简单便宜,因此易于实现批量生产。
    • 9. 发明申请
    • Positive electrodes for lithium batteries and their methods of fabrication
    • 锂电池正极及其制造方法
    • US20050186474A1
    • 2005-08-25
    • US11059433
    • 2005-02-15
    • Zhanfeng JiangJunqing DongHulquan Liu
    • Zhanfeng JiangJunqing DongHulquan Liu
    • B05D1/36B05D5/12H01M4/02H01M4/131H01M4/1391H01M4/36H01M4/50H01M4/505H01M4/52H01M4/525H01M10/0525H01M10/36
    • H01M4/131H01M4/0404H01M4/1391H01M4/366H01M4/505H01M4/525H01M10/0525H01M2004/021H01M2004/028
    • The present invention discloses positive electrodes and their methods of fabrication. These electrodes are low in cost. Lithium rechargeable batteries that use these positive electrodes have excellent cycling properties at high temperature. The positive electrode of the embodiments of this invention comprises of a current collector coated by two layers of active materials for positive electrodes. The active material for the first layer of coating is one or more active materials selected from the following: spinel lithium manganese oxide, and spinel lithium manganese oxide derivatives. The active material for the second layer of coating is one or more active material selected from the following: lithium cobalt oxide, lithium cobalt oxide derivatives, lithium nickel oxide, and lithium nickel oxide derivatives. To fabricate these positive electrodes, a first layer of coating comprising of the active materials stated above is applied onto a current collector and then dried before a second layer of coating is applied onto the surface of the first layer of coating. The positive electrode is obtained after the current collector with the two layers of coating is dried a second time and then pressed to form a slice.
    • 本发明公开了正电极及其制造方法。 这些电极的成本低。 使用这些正极的锂可充电电池在高温下具有优异的循环性能。 本发明实施例的正极包括由两层正极活性材料涂覆的集电器。 用于第一层涂层的活性材料是选自以下的一种或多种活性材料:尖晶石锂锰氧化物和尖晶石锂锰氧化物衍生物。 用于第二层涂层的活性材料是选自以下的一种或多种活性材料:钴酸锂,钴酸锂衍生物,锂镍氧化物和锂镍氧化物衍生物。 为了制造这些正电极,将包含上述活性材料的第一层涂层施加到集电器上,然后在将第二层涂层施加到第一层涂层的表面之前进行干燥。 在集电体上获得正电极后,将两层涂层第二次干燥,然后压制形成切片。
    • 10. 发明授权
    • Flow field plates for fuel cells
    • 用于燃料电池的流场板
    • US07892699B2
    • 2011-02-22
    • US11511614
    • 2006-08-28
    • Junqing DongZhiqiang Zhao
    • Junqing DongZhiqiang Zhao
    • H01M4/64H01M4/66
    • H01M8/0247H01M8/0258H01M8/0267H01M8/04074Y10T428/24479
    • This invention provides a type of cathode flow field plate for fuel cells. The cathode flow field plate comprises a cooling flow field and a reacting flow field, gas entrances, gas exits and plate ribs. Here, an end of said flow field is connected to the gas entrances. The other end is connected to the gas exits. Said cooling flow field comprises of a distributing rib. Said distributing rib is located between the gas entrances and the gas exits. There are connecting pores between said gas entrances and the distributing rib. The cathode flow field plate for fuel cells provided in this invention uses the distributing rib and the connecting pores to divide the gas into cooling gas and reacting gas. Since a single gas source is used, the only parameter subject to adjustment is the total amount of gas flow. Thus the control of the gases is relatively simple. The devices controlling the sources of the cooling gas and the reacting gas can be minimized. Therefore, the fuel cells using the flow field plate provided in this invention can be low in cost.
    • 本发明提供一种用于燃料电池的阴极流场板。 阴极流场板包括冷却流场和反应流场,气体入口,气体出口和板肋。 这里,所述流场的末端连接到气体入口。 另一端连接到气体出口。 所述冷却流场包括分配肋。 所述分配肋位于气体入口和气体出口之间。 在所述气体入口和分配肋之间存在连接孔。 本发明提供的用于燃料电池的阴极流场板使用分配肋和连接孔将气体分成冷却气体和反应气体。 由于使用单个气源,所以调整的唯一参数是气体流量的总量。 因此,气体的控制相对简单。 控制冷却气体源和反应气体的装置可以最小化。 因此,使用本发明提供的流场板的燃料电池的成本可以低。