公开(公告)号：US20140210422A1

公开(公告)日：2014-07-31

申请号：US14205772

申请日：2014-03-12

Applicant: Ceramatec, Inc.

Inventor： Sai Bhavaraju ,  Mathew Robins

IPC: H01M10/39 ,  H02J7/00

CPC classification number: H01M10/399 ,  H01B1/122 ,  H01M4/381 ,  H01M10/054 ,  H01M10/0562 ,  H01M10/615 ,  H01M2300/002 ,  H01M2300/0022 ,  H02J7/0052

Abstract: The present invention provides a molten sodium secondary cell. In some cases, the secondary cell includes a sodium metal negative electrode, a positive electrode compartment that includes a positive electrode disposed in a molten positive electrolyte comprising Na-FSA (sodium-bis(fluorosulonyl)amide), and a sodium ion conductive electrolyte membrane that separates the negative electrode from the positive electrolyte. One disclosed example of electrolyte membrane material includes, without limitation, a NaSICON-type membrane. Non-limiting examples of the positive electrode include Ni, Zn, Cu, or Fe. The cell is functional at an operating temperature between about 100° C. and about 150° C., and preferably between about 110° C. and about 130° C.

Abstract translation: 本发明提供一种熔融钠二次电池。 在一些情况下，二次电池包括钠金属负极，正极室，其包括设置在包含Na-FSA（钠 - 二（氟代磺酰基）酰胺）的熔融正电解质中的正极）和钠离子导电电解质膜 其将负电极与正电解质分离。 电解质膜材料的一个公开实施例包括但不限于NaSICON型膜。 正极的非限制性实例包括Ni，Zn，Cu或Fe。 电池在约100℃至约150℃，优选约110℃至约130℃的操作温度下起作用。

公开(公告)号：US20140030571A1

公开(公告)日：2014-01-30

申请号：US14040241

申请日：2013-09-27

Applicant: Ceramatec, Inc.

Inventor： Sai Bhavaraju ,  Mathew Robins ,  Chett Boxley

IPC: H01M10/42

CPC classification number: H01M10/4235 ,  H01B1/122 ,  H01M4/368 ,  H01M4/381 ,  H01M4/58 ,  H01M4/62 ,  H01M10/054 ,  H01M10/0562 ,  H01M10/39 ,  H01M10/3954 ,  H01M2300/002 ,  H01M2300/0094

Abstract: The present invention provides a secondary cell having a negative electrode compartment and a positive electrode compartment, which are separated by an alkali ion conductive electrolyte membrane. An alkali metal negative electrode disposed in the negative electrode compartment oxidizes to release alkali ions as the cell discharges and reduces the alkali ions to alkali metal during recharge. The positive electrode compartment includes a positive electrode contacting a positive electrode solution that includes an alkali metal compound and a metal halide. The alkali metal compound can be selected from an alkali halide and an alkali pseudo-halide. During discharge, the metal ion reduces to form metal plating on the positive electrode. As the cell charges, the metal plating oxidizes to strip the metal plating to form metal halide or pseudo halide or corresponding metal complex.

Abstract translation: 本发明提供一种具有由碱离子导电电解质膜隔开的负极室和正极室的二次电池。 设置在负极室中的碱金属负极氧化以释放碱离子，因为电池在充电期间放电并将碱离子还原成碱金属。 正极室包括与包含碱金属化合物和金属卤化物的正极溶液接触的正极。 碱金属化合物可以选自碱金属卤化物和碱性假卤化物。 在放电期间，金属离子减少以在正极上形成金属电镀。 当电池充电时，金属电镀被氧化以剥离金属电镀以形成金属卤化物或假卤化物或相应的金属络合物。