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    • 2. 发明授权
    • Additive to stabilize electrochemical cell
    • 添加剂稳定电化学电池
    • US5846673A
    • 1998-12-08
    • US762079
    • 1996-12-09
    • M. Yazid SaidiFeng GaoJeremy BarkerChariclea Scordilis-Kelley
    • M. Yazid SaidiFeng GaoJeremy BarkerChariclea Scordilis-Kelley
    • H01M4/131H01M4/133H01M4/50H01M4/505H01M4/62H01M10/0525H01M10/0567H01M10/36H01M10/40
    • H01M10/0567H01M4/131H01M4/133H01M4/62H01M10/0525H01M4/505Y10T29/49108
    • The present invention provides a novel composition and method for preventing decomposition of one or more electrochemical cell components comprising an electrode having an active material, and an electrolyte. The method of the invention, for the first time, effectively overcomes problems which arise between the interaction of cell components and contaminate water retained in a cell. Such contaminate water reacts with the electrolyte which comprises a salt of lithium in a solvent. Solubilizing of the salt in solution with attendant interaction between the salt and water causes formation of hydrogen-containing acids. The method of the invention effectively blocks decomposition of a lithium metal oxide cathode active material, and particularly lithium manganese oxide (LMO, nominally LiMn.sub.2 O.sub.4). Such decomposition is prevented by including in the cell a basic compound which forms an electron donor species in the electrolyte solution; and by neutralizing at least a portion of the acid by reacting the donor species with the hydrogen-containing acids thereby preventing decomposition of the lithium manganese oxide by the acid. The preservation of the lithium manganese oxide prevents degradation of other cell components by other mechanism. The basic compound is desirably an organic base, preferably a butylamine.
    • 本发明提供一种用于防止一种或多种电化学电池元件分解的新型组合物和方法,所述电化学电池组件包括具有活性材料的电极和电解质。 本发明的方法第一次有效地克服了细胞成分的相互作用和污染细胞中残留的水之间产生的问题。 这种污染水与包含锂在溶剂中的盐的电解质反应。 溶解盐中的盐与盐和水之间伴随的相互作用引起含氢酸的形成。 本发明的方法有效地阻止锂金属氧化物正极活性物质,特别是锰酸锂(LMO,名义上是LiMn 2 O 4)的分解。 通过在电解液中包含在电解质溶液中形成电子供体物质的碱性化合物来防止这种分解; 并且通过使供体物质与含氢酸反应从而中和酸的至少一部分,从而防止酸分解锰酸锂。 锂锰氧化物的保存通过其他机理防止其他电池组分的降解。 碱性化合物优选为有机碱,优选为丁胺。
    • 3. 发明授权
    • Stabilized electrochemical cell
    • 稳定电化学电池
    • US5869207A
    • 1999-02-09
    • US762081
    • 1996-12-09
    • M. Yazid SaidiChariclea Scordilis-KelleyJeremy Barker
    • M. Yazid SaidiChariclea Scordilis-KelleyJeremy Barker
    • C01G45/00H01M4/50H01M4/505H01M4/62H01M10/0525H01M10/0567H01M10/36
    • H01M4/505C01G45/1221C01G45/1242H01M10/0567H01M4/62C01P2006/40H01M10/0525
    • The present invention provides a novel composition and method for preventing decomposition of one or more electrochemical cell components comprising an electrode having an active material, and an electrolyte. The method of the invention, for the first time, effectively overcomes problems which arise between the interaction of cell components and contaminate water retained in a cell. Such contaminate water reacts with the electrolyte which comprises a salt of lithium in a solvent. Solubilizing of the salt in solution with attendant interaction between the salt and water causes formation of hydrogen-containing acids. The method of the invention effectively blocks decomposition of a lithium metal oxide cathode active material, and particularly lithium manganese oxide (LMO, nominally LiMn.sub.2 O.sub.4). Such decomposition is prevented by including in the cell a basic compound which forms an electron donor species in the electrolyte solution; and by neutralizing at least a portion of the acid by reacting the donor species with the hydrogen-containing acids thereby preventing decomposition of the lithium manganese oxide by the acid. The preservation of the lithium manganese oxide prevents degradation of other cell components by other mechanism.
    • 本发明提供一种用于防止一种或多种电化学电池元件分解的新型组合物和方法,所述电化学电池组件包括具有活性材料的电极和电解质。 本发明的方法第一次有效地克服了细胞成分的相互作用和污染细胞中残留的水之间产生的问题。 这种污染水与包含锂在溶剂中的盐的电解质反应。 溶解盐中的盐与盐和水之间伴随的相互作用引起含氢酸的形成。 本发明的方法有效地阻止锂金属氧化物正极活性物质,特别是锰酸锂(LMO,名义上是LiMn 2 O 4)的分解。 通过在电解液中包含在电解质溶液中形成电子供体物质的碱性化合物来防止这种分解; 并且通过使供体物质与含氢酸反应从而中和酸的至少一部分,从而防止酸分解锰酸锂。 锂锰氧化物的保存通过其他机理防止其他电池组分的降解。
    • 7. 发明授权
    • Thermally stable, highly conductive salt
    • 热稳定,高导电性盐
    • US6015639A
    • 2000-01-18
    • US16608
    • 1998-01-30
    • Feng GaoJeremy BarkerPeikang Liu
    • Feng GaoJeremy BarkerPeikang Liu
    • H01B1/12H01M10/0525H01M10/0568H01M6/18
    • H01M10/0568H01B1/122H01M10/0525
    • The invention provides a new family of compounds and a method of making the compounds. The new compounds are useful as ion conductive salts, and particularly useful as salts for batteries. The compounds of the invention are prepared from three principal reagents, bis (trifluoromethanesufonyl) methane (CF.sub.3 SO.sub.2).sub.2 CH.sub.2 ; benzoyl chloride; and pyridine which facilitates reaction and then is removed. A precursor sodium salt (CF.sub.3 SO.sub.2).sub.2 CHNa is first prepared. Then, equimolar amounts of the precursor sodium salt and pyridine are dissolved in anhydrous acetonitrile. A stoichiometric amount of the selected substitute benzoyl chloride is then added drop by drop. After addition of Li.sub.3 PO.sub.4, there is pyridine release and formation of the product of the aforesaid two reagents. In the benzene ring, R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are each identical or different and are each independently selected from hydrogen and an electron withdrawing substituent.
    • 本发明提供一种新的化合物族和一种制备该化合物的方法。 新化合物可用作离子导电盐,并且特别用作电池的盐。 本发明的化合物由三种主要试剂,二(三氟甲磺酰基)甲烷(CF 3 SO 2)2 CH 2; 苯甲酰氯; 和吡啶,这有助于反应然后被除去。 首先制备前体钠盐(CF 3 SO 2)2 CHNa。 然后将等摩尔量的前体钠盐和吡啶溶于无水乙腈中。 然后逐滴加入化学计量的所选择的替代苯甲酰氯。 添加Li3PO4后,存在吡啶释放并形成上述两种试剂的产物。 在苯环中,R 1,R 2,R 3,R 4和R 5各自相同或不同,各自独立地选自氢和吸电子取代基。
    • 10. 发明授权
    • Binary solvent method for battery
    • 电池二元溶剂法
    • US5972055A
    • 1999-10-26
    • US680421
    • 1996-07-15
    • Feng GaoJeremy BarkerPorter H. MitchellJeffrey SwoyerArnie Stux
    • Feng GaoJeremy BarkerPorter H. MitchellJeffrey SwoyerArnie Stux
    • H01M6/16H01M6/18H01M10/052H01M10/0565H01M10/38
    • H01M10/052H01M10/0565H01M6/164H01M6/188Y10T29/49115
    • The subject invention discloses a novel method of providing a binary electrolyte-solvent solution in a solid battery system. A first component of this binary electrolyte solvent system is provided by a material which acts as a plasticizer in the formation of a solid polymeric matrix (separator), composite cathode and/or composite anode, and which also acts as an electrolyte solvent in the completed electrochemical cell. The second component of the binary electrolyte solvent system is an electrolyte solvent, which generally carries the electrolyte salt into the electrolytic cell precursor. The first and second components of the binary electrolyte solvent system mix within the electrolytic cell, dispersing the electrolyte salt throughout the binary electrolyte solvent system. The addition of the electrolyte salt to the electrolytic cell precursor acts to activate the cell precursor, and to form a functional electrolytic cell or battery system.
    • 本发明公开了一种在固体电池系统中提供二元电解质溶剂溶液的新方法。 这种二元电解质溶剂体系的第一个组分由一种在形成固体聚合物基质(分离器),复合阴极和/或复合阳极中作为增塑剂的材料提供,并且还可以在完成后的电解质溶剂 电化学电池。 二元电解质溶剂系统的第二组分是电解质溶剂,其通常将电解质盐携带到电解槽前体中。 二元电解质溶剂系统的第一和第二组分在电解池内混合,将电解质盐分散在整个二元电解质溶剂系统中。 将电解质盐添加到电解槽前体中起作用以活化细胞前体,并形成功能性电解池或电池系统。