公开(公告)号：US20020084188A1

公开(公告)日：2002-07-04

申请号：US10037288

申请日：2002-01-03

Applicant: The Regents of the University of California.

Inventor： Tri D. Tran ,  David J. Lenz

IPC: C02F001/469

CPC classification number: B82Y30/00 ,  C02F1/4691 ,  C02F2201/4611

Abstract: An electrically regeneratable battery of electrochemical cells for capacitive deionization (including electrochemical purification) and regeneration of electrodes is operated at alternate polarities during consecutive cycles. In other words, after each regeneration step operated at a given polarity in a deionization-regeneration cycle, the polarity of the deionization step in the next cycle is maintained. In one embodiment, two end electrodes are arranged one at each end of the battery, adjacent to end plates. An insulator layer is interposed between each end plate and the adjacent end electrode. Each end electrode includes a single sheet of conductive material having a high specific surface area and sorption capacity, preferably a sheet formed of carbon aerogel composite. The battery further includes a plurality of generally identical double-sided intermediate electrodes that are equidistally separated from each other, between the two end electrodes. As the electrolyte enters the battery of cells, it flows through a continuous open serpentine channel defined by the electrodes, substantially parallel to the surfaces of the electrodes. By polarizing the cells, ions are removed from the electrolyte and are held in the electric double layers formed at the carbon aerogel surfaces of the electrodes. As the electrodes of each cell of the battery are saturated with the removed ions, the battery is regenerated electrically at a reversed polarity from that during the deionization step of the cycle, thus significantly minimizing secondary wastes.

Abstract translation: 用于电容去离子（包括电化学纯化）和电极再生的电可再生电池用于连续循环期间的交替极性。 换句话说，在去离子 - 再生循环中以给定极性操作的每个再生步骤之后，维持下一循环中去离子步骤的极性。 在一个实施例中，两个端电极被布置在电池的每个端部处，邻近端板。 在每个端板和相邻的端电极之间插入绝缘体层。 每个端电极包括具有高比表面积和吸附能力的单片导电材料，优选由碳气凝胶复合材料形成的片材。 电池还包括在两个端电极之间彼此等距离分离的多个大致相同的双面中间电极。 当电解质进入电池时，它流过由电极限定的连续开放的蛇形通道，基本上平行于电极的表面。 通过使电池极化，离子从电解质中除去并保持在形成在电极的碳气凝胶表面的电双层中。 当电池的每个电池的电极被去除的离子饱和时，电池以与循环的去离子步骤相反的极性电性地再生，从而显着地最小化次级废物。

公开(公告)号：US20040188246A1

公开(公告)日：2004-09-30

申请号：US10801246

申请日：2004-03-15

Applicant: The Regents of the University of California

Inventor： Tri D. Tran ,  David J. Lenz

IPC: C25C007/00

CPC classification number: B82Y30/00 ,  C02F1/4691 ,  C02F2201/4611

Abstract: An electrically regeneratable battery of electrochemical cells for capacitive deionization (including electrochemical purification) and regeneration of electrodes is operated at alternate polarities during consecutive cycles. In other words, after each regeneration step operated at a given polarity in a deionization-regeneration cycle, the polarity of the deionization step in the next cycle is maintained. In one embodiment, two end electrodes are arranged one at each end of the battery, adjacent to end plates. An insulator layer is interposed between each end plate and the adjacent end electrode. Each end electrode includes a single sheet of conductive material having a high specific surface area and sorption capacity, preferably a sheet formed of carbon aerogel composite. The batter further includes a plurality of generally identical double-sided intermediate electrodes that are equidistally separated from each other, between the two end electrodes. As the electrolyte enters the battery of ells, t flows through a continuous open serpentine channel defined by the electrodes, substantially parallel to the surfaces of the electrodes. By polarizing the cells, ions are removed from the electrolyte and are held in the electric double layers formed at the carbon aerogel surfaces of the electrodes. As the electrodes of each cell of the battery are saturated with the removed ions, the battery is regenerated electrically at a reversed polarity from that during the deionization step of the cycle, thus significantly minimizing secondary wastes.

Abstract translation: 用于电容去离子（包括电化学纯化）和电极再生的电可再生电池用于连续循环期间的交替极性。 换句话说，在去离子 - 再生循环中以给定极性操作的每个再生步骤之后，维持下一循环中去离子步骤的极性。 在一个实施例中，两个端电极被布置在电池的每个端部处，邻近端板。 在每个端板和相邻的端电极之间插入绝缘体层。 每个端电极包括具有高比表面积和吸附能力的单片导电材料，优选由碳气凝胶复合材料形成的片材。 面糊还包括在两个端电极之间彼此等距离分离的多个大致相同的双面中间电极。 当电解质进入电池时，t流过由电极限定的连续开放的蛇形通道，基本上平行于电极的表面。 通过使电池极化，离子从电解质中除去并保持在形成在电极的碳气凝胶表面的电双层中。 当电池的每个电池的电极被去除的离子饱和时，电池以与循环的去离子步骤相反的极性电性地再生，从而显着地最小化次级废物。

公开(公告)号：US20020127459A1

公开(公告)日：2002-09-12

申请号：US09960695

申请日：2001-09-21

Applicant: The Regents of the University of California

Inventor： David J. Lenz ,  Brandon W. Chung ,  Ai Quoc Pham

IPC: H01M008/02

CPC classification number: H01M8/0247 ,  H01M8/0228 ,  H01M8/0297 ,  H01M8/24

Abstract: An interconnect that facilitates electrical connection and mechanical support with minimal mechanical stress for fuel cell stacks. The interconnects are flexible and provide mechanically robust fuel cell stacks with higher stack performance at lower cost. The flexible interconnects replace the prior rigid rib interconnects with flexible nullfingersnull or contact pads which will accommodate the imperfect flatness of the ceramic fuel cells. Also, the mechanical stress of stacked fuel cells will be smaller due to the flexibility of the fingers. The interconnects can be one-sided or double-sided.

Abstract translation: 一种互连，便于电连接和机械支持，燃料电池堆的机械应力最小。 互连是灵活的，并以更低的成本提供具有更高堆叠性能的机械坚固的燃料电池堆。 柔性互连通过柔性“手指”或接触垫替代现有的刚性肋互连件，其将适应陶瓷燃料电池的不完美平坦度。 此外，由于手指的柔性，堆叠的燃料电池的机械应力将更小。 互连可以是单面或双面。