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    • 8. 发明授权
    • Secondary electrochemical cell
    • 二次电化学电池
    • US5591543A
    • 1997-01-07
    • US441628
    • 1995-05-15
    • Emanuel PeledChen MenachemAharon Gorenshtein
    • Emanuel PeledChen MenachemAharon Gorenshtein
    • H01M4/48H01M4/485H01M4/50H01M4/505H01M4/52H01M4/525H01M6/16
    • H01M4/485H01M4/505H01M4/525
    • The invention relates to novel cathodes for secondarylithium cells and to lithium cells which contain such cathodes. The secondary cells can be charged and discharged substantially more times than corresponding cells which contain conventional LiCoO.sub.2 type cathodes.The cathodes are based on crystalline compounds of the Li.sub.1 x M.sub.x/2 CoO.sub.2 type. One of the aspects of the invention is a process for the production of such crystalline cathodes, where M is selected from calcium, strontium, barium and magnesium and where the content of such bivalent cation M in the crystal is from about 0.1 weight-% to about 10 weight-%, preferably 0.2 to 5 weight-%. The novel crystalline cathode compound is synthesized by a solid/solid reaction at elevated temperature, generally in the 700.degree. C. to about 900.degree. C. range. The cathode may be prepared from small crystals of such a compound, in combination with a compatible binder or conductive material, such as graphite.
    • 本发明涉及用于二芳基锂电池的新型阴极和含有这种阴极的锂电池。 二次电池可以比含有常规LiCoO 2型阴极的相应电池大大多次充电和放电。 阴极基于Li1 xMx / 2CoO2型的结晶化合物。 本发明的一个方面是制备这种结晶阴极的方法,其中M选自钙,锶,钡和镁,并且其中该结晶中这种二价阳离子M的含量为约0.1重量%至约0.1重量% 约10重量%,优选0.2至5重量%。 新型结晶阴极化合物通过固体/固体反应在升高的温度下合成,通常在700℃至约900℃的范围内。 阴极可以由这种化合物的小晶体与相容的粘合剂或导电材料如石墨组合制备。
    • 10. 发明授权
    • Method of manufacturing proton-conducting membranes
    • 制造质子传导膜的方法
    • US08968961B2
    • 2015-03-03
    • US13574967
    • 2011-01-24
    • Emanuel PeledArnon BlumAdi Aharon
    • Emanuel PeledArnon BlumAdi Aharon
    • H01M8/10
    • H01M4/96H01M4/9083H01M4/921H01M4/926H01M8/0202H01M8/0258H01M8/0271H01M8/186Y02E60/50Y02E60/521Y02E60/528Y02P70/56Y10T307/685
    • A process for producing proton-conducting membrane, the process comprising: mixing (i) 5% to 60% by volume of an electrically nonconductive inorganic powder having a good acid absorption capacity, the powder comprising essentially nanosize particles; (ii) 5% to 50% by volume of a polymeric binder that is chemically compatible with acid, oxygen and the fuel; and (iii) 10 to 90% by volume of an acid or aqueous acid solution, wherein the mixing is conducted at various rate steps, thereby producing a proton-conducting mixture; continuously casting the proton-conducting mixture on rolled paper, non-woven matrix or the like at ambient temperature; drying the casted proton-conducting mixture at a temperature of greater than 100° C. for approximately 5 to 30 minutes, thereby forming a dry film; and laminating a plurality of the dry films together under pressure, and thereafter extracting pore-former out of pores of the dry films, thereby forming the proton-conducting membrane having an average pore size of less than 30 nanometers.
    • 一种生产质子传导膜的方法,该方法包括:(i)5体积%至60体积%的具有良好的酸吸收能力的非导电无机粉末,该粉末包含基本上纳米尺寸的颗粒; (ii)5%至50%体积的与酸,氧和燃料化学相容的聚合物粘合剂; 和(iii)10至90体积%的酸或酸水溶液,其中以各种速率步骤进行混合,从而产生质子传导混合物; 在环境温度下,在卷纸,无纺基体等上连续铸造质子传导性混合物; 在大于100℃的温度下干燥铸造的质子传导混合物约5至30分钟,从而形成干膜; 并在压力下将多个干膜层叠在一起,然后从干膜的孔中提取成孔剂,从而形成平均孔径小于30纳米的质子传导膜。