Ionic and Electronic Conductive Binder in Thick Electrodes

    公开(公告)号:US20190267628A1

    公开(公告)日:2019-08-29

    申请号:US15905424

    申请日:2018-02-26

    Inventor: Rameshwar Yadav

    Abstract: An electrode for an electrochemical device has a current collector, an electrolyte layer, and an active material layer between the current collector and the electrolyte layer comprising active material. The active material layer has a first sub-layer in contact with the electrolyte layer, the first sub-layer having only an electronically conductive polymer binder as a binder material; a second sub-layer in contact with the current collector, the second sub-layer having only an ionically conductive polymer binder as the binder material; and a mid-layer between the first sub-layer and the second sub-layer.

    Methods of producing cross-linked polymer electrolyte membranes having free-radical scavengers
    14.
    发明授权
    Methods of producing cross-linked polymer electrolyte membranes having free-radical scavengers 有权
    制备具有自由基清除剂的交联聚合物电解质膜的方法

    公开(公告)号:US09212246B1

    公开(公告)日:2015-12-15

    申请号:US14446403

    申请日:2014-07-30

    Inventor: Rameshwar Yadav

    Abstract: Methods of preparing a crosslinked polymer provide increased chemical durability resulting from the inclusion of antioxidants, or free-radical scavengers, to neutralize the radicals causing polymer membrane degradation. One method includes polymerizing, using an initiator with light irradiation or heat, a styrenated crosslinkable monomer with a styrene-based comonomer having the formula CH2═CH—C6H4—X and a free-radical scavenger. Examples of free-radical scavengers include 4-hydroxy styrene and 4-vinylaniline.

    Abstract translation: 制备交联聚合物的方法提供由于包含抗氧化剂或自由基清除剂而导致的中和引起聚合物膜降解的自由基的增加的化学耐久性。 一种方法包括使用具有光照射或加热的引发剂将苯乙烯化的可交联单体与具有式CH 2 = CH-C 6 H 4 -X的苯乙烯基共聚单体和自由基清除剂进行聚合。 自由基清除剂的实例包括4-羟基苯乙烯和4-乙烯基苯胺。

    Multi-acid polymers from multifunctional amino acids and sulfonyl halide precursors and methods of making the same

    公开(公告)号:US10153505B2

    公开(公告)日:2018-12-11

    申请号:US15078072

    申请日:2016-03-23

    Inventor: Rameshwar Yadav

    Abstract: Multi-acid polymers are produced having the formula R—SO2—NH—R′—(SO3H)n and made from a polymer precursor in sulfonyl fluoride form or sulfonyl chloride form The R is one or more units of the polymer precursor without sulfonyl fluoride or sulfonyl chloride, R′ is the portion of the amino sulfonic acid without the SO3H and NH, n is one or more, and the multi-acid polymer has two or more proton conducting groups. A method of making the multi-acid polymers includes reacting an amino acid having multiple sulfonic acids with a polymer precursor in sulfonyl fluoride form or sulfonyl chloride form in a mild base condition to produce the multi-acid polymer having two or more proton conducting groups.

Patent Agency Ranking