公开(公告)号：EP1875542A4

公开(公告)日：2008-04-30

申请号：EP06722192

申请日：2006-03-29

Applicant: BYD CO LTD

Inventor： DONG JUNQING ,  ZHOU YONG

IPC: H01M8/02

CPC classification number: H01M8/2483 ,  H01M8/0258 ,  H01M8/026 ,  H01M8/0263 ,  H01M8/0271 ,  H01M8/0284 ,  H01M8/241 ,  H01M8/248 ,  H01M2008/1095

Abstract: 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.

Abstract translation: 公开了一种流场板和使用其的燃料电池堆。 本发明的流场板（19）包括形成在流场板中心处的中心孔（5），形成在靠近流动外缘的两个位置处的入口（6）和出口（7） 以及分布在中心孔（5）周围并与流场板一侧上的入口（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且与入口和出口连通的流动槽，这有利于氧化剂扩散，所以流场板上不存在“死端”，并且反应物 可以均匀分布到流场板的每个部分。 此外，由反应产生的产物如水，氮气，二氧化碳等可以及时排放，而不会积聚在流场板上。 因此，可以提高反应物利用率，燃料电池性能和使用寿命。

公开(公告)号：EP1977471A4

公开(公告)日：2009-04-22

申请号：EP06828290

申请日：2006-12-11

Applicant: BYD CO LTD

Inventor： DONG JUNQING ,  ZHOU YONG

IPC: H01M8/04

CPC classification number: H01M8/04589 ,  H01M8/04089 ,  H01M8/04186 ,  H01M8/04753 ,  H01M8/1011 ,  Y02E60/523

Abstract: 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.

Abstract translation: 一种燃料电池系统及其控制方法; 所述系统包括燃料电池发电机（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电机（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）检测到的排放参数来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; 其特征在于，所述检测单元（8）为电流检测装置，所述检测单元（8）检测的所述燃料电池发电机（5）的放电参数为放电电流值。 本发明利用燃料电池发电机输出的放电电流作为控制燃料/气体供应单元的主要参数， 因此，控制更加直接和有效。 此外，本发明还可以根据所述放电电流值，控制所述燃料和气体供应单元的工作持续时间间歇运行。

公开(公告)号：EP1925052A4

公开(公告)日：2008-08-27

申请号：EP06775510

申请日：2006-08-25

Applicant: BYD CO LTD

Inventor： DONG JUNQING ,  ZHAO ZHIQIANG

IPC: H01M8/04 ,  H01M8/02

CPC classification number: H01M8/0247 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/04074 ,  Y10T428/24479

Abstract: 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.

公开(公告)号：EP1652250A4

公开(公告)日：2007-10-17

申请号：EP04761988

申请日：2004-07-20

Applicant: BYD CO LTD

Inventor： ZOU CAISONG ,  WANG CHUANFU ,  DONG JUNQING

IPC: H01M4/58 ,  C01B31/04 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/38 ,  H01M10/36 ,  H01M10/40

CPC classification number: H01M4/0402 ,  C01B32/20 ,  H01M4/02 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/366 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: 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 mum, 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 mum 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.

公开(公告)号：EP1831948A4

公开(公告)日：2008-04-23

申请号：EP05848158

申请日：2005-12-30

Applicant: BYD CO LTD

Inventor： ZHOU YONG ,  DONG JUNQING ,  WANG CHUANFU

IPC: H01M8/22

CPC classification number: H01M8/04089 ,  H01M8/04097 ,  H01M8/04208 ,  H01M8/1009 ,  H01M8/22 ,  H01M8/241 ,  H01M8/2455 ,  Y02P70/56

Abstract: A fuel cell battery, comprising a chamber unit (1), an anode entrance (2) connected to the chamber unit (1), an anode exit (3), a cathode entrance (4) and a cathode exit (5). The anode entrance (2) is connected to a hydrogen source (11) and an organic fuel source (12) respectively through a hydrogen duct (9) and an organic fuel duct (10). Duct (9) and duct (10) are respectively installed with a hydrogen valve (13) and an organic fuel valve (14). An exit valve (20) is installed at the anode exit. This fuel cell battery combines the advantages provided by hydrogen fuel and organic fuel. The fuel cell battery can meet the dual requirements of operating on both high and low power. The fuel cell battery's design leads to low manufacturing costs, a simple structure, and easy implementation.

公开(公告)号：EP1616083A4

公开(公告)日：2008-03-05

申请号：EP04728502

申请日：2004-04-21

Applicant: BYD CO LTD

Inventor： LI CHUNBO ,  CHENG HONGWEI ,  WANG CHUANFU ,  DONG JUNQING

IPC: F01N1/24 ,  B01D39/20 ,  B01D53/94 ,  B01J35/04 ,  B01J35/10 ,  F01N3/022 ,  F01N3/24 ,  F01N3/28

CPC classification number: F01N3/2803 ,  B01D39/2051 ,  B01D53/9454 ,  B01D2239/1208 ,  B01D2239/1216 ,  B01D2255/1025 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2073 ,  F01N2310/00 ,  F01N2330/14 ,  Y02T10/22

Abstract: This invention discloses of a muffler and catalytic converter device, and in addition, a muffler, and a catalytic converter, wherein each type of device uses a porous metal that may function as the sound absorption material for the muffler part of the device, and the substrate for the catalyst coating for the catalytic converter part of the device. In order to be effectiveness as a substrate and to have good sound absorption, the porous metal has a pore density of between 80% and 98% and a pore diameter of between 50mum and 1200mum. The porous metal provides structural strength, and is resistant to corrosion, heat, and impact from exhaust flow. It is also easy and cheap to fabricate. For the muffler and catalytic converter device, by combining the customary two devices into one, the cost of production as well as the cost of installation for the device is lowered. Therefore, the muffler and catalytic converter device, muffler, and catalytic converter each having the porous metal that serves functions including good sound absorption characteristics over a wide spectrum of frequencies, that is efficient in the removal of environmental contaminants from the exhaust, and that is durable, and easy and cheap to manufacture for mass production.

公开(公告)号：EP1647066A4

公开(公告)日：2007-10-17

申请号：EP04761989

申请日：2004-07-20

Applicant: BYD CO LTD

Inventor： ZOU CAISONG ,  WANG CHUANFU ,  DONG JUNQING

IPC: H01M4/04 ,  C01B31/04 ,  H01M4/02 ,  H01M4/36 ,  H01M4/38 ,  H01M10/36 ,  H01M10/40

CPC classification number: H01M4/0402 ,  C01B32/20 ,  H01M4/02 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/366 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: 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 mum, 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 mum 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.

公开(公告)号：EP1704609A4

公开(公告)日：2007-08-29

申请号：EP05773775

申请日：2005-06-23

Applicant: BYD CO LTD

Inventor： DONG JUNQING ,  ZHANG RIQING

IPC: H01M4/88 ,  B05D5/12 ,  H01M4/86 ,  H01M4/92 ,  H01M4/94 ,  H01M4/96 ,  H01M8/02 ,  H01M8/10

CPC classification number: H01M4/8807 ,  H01M4/8605 ,  H01M4/8817 ,  H01M4/8896 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/1004 ,  H01M2008/1095 ,  Y02P70/56

Abstract: This invention discloses fabrication methods for membrane electrode assemblies of proton exchange membrane fuel cells, including gas diffusion electrodes. The fabrication methods of gas diffusion electrodes include the following steps: fabricating a conductive substrate; forming a layer of carbon containing material onto said conductive substrate; subjecting said conductive substrate with said carbon containing material to pressure at a predetermined temperature; cooling said conductive substrate with said material having carbon under pressure to obtain a gas diffusion layer on said conductive substrate; coating a layer of catalyst containing material onto said gas diffusion layer; subjecting said layer of catalyst containing material with gas diffusion layer and conductive substrate to pressure at another predetermined temperature; cooling under pressure to form a gas diffusion electrode. Compared with the existing technologies, all layers within the membrane electrode assemblies are bonded together tightly and will not separate easily. These fabrication methods are simple, easy to implement, have good reproducibility and produces electron membrane with excellent synthetic electrical properties.

公开(公告)号：EP1963013A4

公开(公告)日：2009-01-07

申请号：EP06828302

申请日：2006-12-12

Applicant: BYD CO LTD

Inventor： YANG XINSHENG ,  DONG JUNQING

IPC: B01J37/025 ,  B01D67/00 ,  B01D69/14 ,  B01D71/32 ,  B01D71/36 ,  B01J23/38 ,  B01J23/75 ,  C25B9/00 ,  H01M4/88

CPC classification number: H01M8/1004 ,  B01D67/0079 ,  B01D67/0088 ,  B01D69/12 ,  B01D69/145 ,  B01D71/32 ,  B01D71/36 ,  B01D2325/10 ,  B01D2325/38 ,  H01M4/8605 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/8882 ,  H01M2008/1095 ,  Y02P70/56

Abstract: A fabrication method for catalyst coated membranes includes the steps of : exposing a micro-porous membrane to a catalyst dispersing solution to form a catalyst containing micro-porous membrane; exposing the catalyst containing micro-porous membrane to a resin dispersing solution to form a catalyst layer; and placing a proton exchange membrane between two of the catalyst layers with a laminating process to form the catalyst coated membrane. The fabrication method provides a filling process to uniformly fill the catalyst and resin throughout the pores of the micro-porous membranes in the catalyst layers. The micro-porous membranes are hydrophobic and easily discharge water when necessary. Therefore, membrane electrode assemblies with catalyst coated membranes fabricated using the method are stable and perform well during fuel cell operation.

公开(公告)号：EP1935045A4

公开(公告)日：2008-11-26

申请号：EP06791254

申请日：2006-10-12

Applicant: BYD CO LTD

Inventor： ZHANG RIQING ,  DONG JUNQING

IPC: H01M4/88 ,  H01M8/10

CPC classification number: H01M8/1004 ,  H01M4/881 ,  H01M4/8825 ,  H01M4/8875 ,  H01M4/8896 ,  Y10T156/10

Abstract: The invention provides a method for preparing a membrane electrode of a fuel cell, comprising the steps of preparing diffusion layers, and superimposing the diffusion layers on a proton exchange membrane having a catalyst layer on each surface, wherein the method for preparing the proton exchange membrane having a catalyst layer on each surface comprises the steps of: filling a catalyst slurry containing a catalyst and a bonding agent between two polymer films, and pressing the polymer films filled with the catalyst slurry to obtain a catalyst layer; and superimposing the catalyst layer on each surface of a proton exchange membrane. The method of the present invention can control the thickness of the catalyst layers by pressing during preparation thereof, therefore, the catalyst layers have an even thickness and surface.

Abstract translation: 本发明提供了一种制备燃料电池膜电极的方法，包括以下步骤：制备扩散层，并将扩散层叠加在每个表面上具有催化剂层的质子交换膜上，其中制备质子交换膜的方法 在每个表面上具有催化剂层的步骤包括以下步骤：在两个聚合物膜之间填充含有催化剂和粘合剂的催化剂浆料，并且压制填充有催化剂浆料的聚合物膜以获得催化剂层; 并将催化剂层叠置在质子交换膜的每个表面上。 本发明的方法可以在制备过程中通过压制来控制催化剂层的厚度，因此，催化剂层具有均匀的厚度和表面。