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    • 41. 发明授权
    • Cells having cathodes derived from ammonium-copper-molybdenum-chalcogen
compounds
    • 具有衍生自铵 - 铜 - 钼 - 硫属化合物的阴极的电池
    • US4139682A
    • 1979-02-13
    • US910478
    • 1978-05-30
    • Allan J. JacobsonM. Stanley Whittingham
    • Allan J. JacobsonM. Stanley Whittingham
    • H01M4/136H01M4/58H01M10/052H01M10/054H01M10/36
    • H01M10/052H01M4/136H01M4/581H01M10/054
    • The present invention is directed to an electric current-producing cell which contains:(a) an anode having as its anode-active material one or more metals selected from the group consisting of the Periodic Table Group IA metals, Group IB metals, Group IIA metals and Group IIB metals;(b) a cathode having as its cathode-active material one or more compounds selected from:(i) those having the formula:NH.sub.4 CuMoZy (1)wherein Z is a chalcogen selected from the group consisting of sulfur, selenium, sulfur-selenium mixtures, sulfur-oxygen mixtures and selenium-oxygen mixtures, and wherein y is a numerical value of about 4.(ii) the decomposition products of one or more compounds of subparagraph (i), resulting from the decomposition thereof below about 350.degree. C; and(c) an electrolyte which is chemically inert with respect to said anode and said cathode and which permits the migration of ions between said anode and said cathode.BACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to electric current-producing cells, and more particularly to such cells employing specified cathode-active materials comprising or derived from ammonium-copper-molybdenum-chalcogenide compounds.2. Description of the Prior ArtThere has been considerable interest in recent years in developing high energy density batteries for voltaic cells. Exemplary of the developing systems is a high energy density electrochemical cell utilizing intercalation compounds of the transition metal chalcogenides as cathode-active materials and using alkali metal anodes, as set forth in U.S. Pat. No. 4,009,052. U.S. Pat. No. 3,915,740 describes a cell having lithium anode-active material and MoS.sub.x (where 2 .ltoreq. .times. .ltoreq. 3) as its cathode-active material, and U.S. Pat. No. 3,864,167 describes some fibrous transition metal trichalcogenides as cathode-active materials. U.S. Pat. No. 3,655,585 describes a cell utilizing as cathode active material vanadium pentoxide, prepared by the thermal decomposition of ammonium vanadate.U.S. Pat. Nos. 3,898,096, 3,925,098 and 4,003,753 describe electrochemical cells having alkali metal anodes, e.g., lithium, having molten salt electrolytes, and having cathodes containing chalcogenides such as Cu and Fe sulfides, Ni sulfide and oxide and molybdenum sulfide, as well as potassium thiomolybdate K.sub.2 MoS.sub.4.The compounds utilized as the cathode active materials in the cells of the present invention are ammonium-copper-molybdenum-chalcogenide type compounds. In this regard, it should be noted that ammonium-metal-chalcogenide compounds are known, as exemplified by U.S. Pat. No. 2,435,380. However, notwithstanding the considerable variety of high energy density electrochemical cell systems which have recently been developed, it is believed that the particular cells of the present invention containing the ammonium-copper-molybdenum-chalcogenides have not been heretofore disclosed or rendered obvious.SUMMARY OF THE INVENTIONThe present invention is directed to an electric current-producing cells which contains:(a) an anode having as its anode-active material one or more metals selected from the group consisting of the Periodic Table Group IA metals, Group IB metals, Group IIA metals and Group IIB metals;(b) a cathode having as its cathode-active material one or more compounds selected from:(i) those having the formula:NH.sub.4 CuMoZ.sub.y ( 1)wherein Z is a chalcogen selected from the group consisting of sulfur, selenium, sulfur-selenium mixtures, sulfur-oxygen mixtures and selenium-oxygen mixtures, and wherein y is a numerical value of about 4;(ii) the decomposition products of one or more compounds of subparagraph (i), resulting from the decomposition thereof below about 350.degree. C.; and(c) an electrolyte which is chemically inert with respect to said anode and said cathode and which permits the migration of ions between said anode and said cathode.DETAILED DESCRIPTION OF THE INVENTIONAs mentioned, the electric current-producing cell of the present invention is one which contains a specified anode, a functional electrolyte, and a cathode having as its cathode-active material compounds derived from ammonium-copper-molybdenum-chalcogenide compounds.In general, the anode employed in the cell of the present invention is one which contains as its anode-active material one or more metals selected from the group consisting of the Periodic Table Group IA metals, Group IB metals, Group IIA metals and Group IIB metals. Of these, the Group IA metals, also known as the alkali metals, are desirable. Preferred is the anode having as its anode-active material a metal selected from the group consisting of lithium and sodium, and most preferably lithium. The anode-active material may be in contact with other metal structures in the cell of the present invention, depending upon the particular anode-active material being used. Thus, for example, some anode-active materials are selfsupporting and may also serve as current collectors whereas other anode-active materials, e.g. lithium, may be in contact with other metal structures, such as nickel, copper or silver screen, which serve as current collectors. These anode configurations are a matter of design depending upon the particular anode-active material being used and are well known in the art.The cathode employed in the cell of the present invention is one which contains as its cathode-active material one or more compounds selected from the group consisting of(i) those having the formulaNH.sub.4 CuMoZ.sub.y ( 1)wherein Z is a chalcogen selected from the group consisting of sulfur, selenium, sulfur-selenium mixtures, sulfur-oxygen mixtures and selenium-oxygen mixtures, and wherein y is a numerical value of about 4;(ii) the decomposition products of one or more compounds of subparagraph (i) resulting from the decomposition thereof below about 350.degree. C.The variable Z as defined above represents a chalcogen selected from the group consisting of sulfur, selenium, sulfur-selenium mixtures, sulfur-oxygen mixtures and seleniumoxygen mixtures. Desirably, Z is selected from the group consisting of sulfur and selenium. Preferably, the chalcogen Z is sulfur.Among the many cathode-active materials which are used in the cells of the present invention are:Nh.sub.4 cuMoS.sub.4Nh.sub.4 cuMoSe.sub.4Nh.sub.4 cuMoS.sub.4-a Se.sub.aNh.sub.4 cuMoS.sub.4-a O.sub.aand the like, wherein 4 > a > 0. Also, as mentioned above, the decomposition products of the foregoing are included.The above-mentioned cathode-active compounds may be prepared by known techniques and are believed to be within the purview of the artisan. For example, ammonium copper thiomolybdate may be formed by passing sulfurous vapors through a solution of ammonium molybdate and copper sulfate. The decomposition products of ammonium copper thiomolybdate may be obtained at temperatures below about 350.degree. C. by thermal decomposition. Thus, heating ammonium copper thiomolybdate at temperatures about 50.degree. C. or so and up to as high as 350.degree. C. will effect at least to some degree the thermal decomposition of the compound. If the decomposition products of ammonium copper thiomolybdate are obtained at temperatures below about 350.degree. C., a poorly crystalline product is obtained with a sulfur/metal ratio greater than 2.5 but less than 4, whereas heating at higher temperature results in conversion to Cu.sub.2-x S and MoS.sub.2. The sulfide decomposition products obtained below about 350.degree. C. have surprisingly been found to effect significantly higher energy density electrochemical cells than the products obtained by thermal decomposition above 350.degree. C. or so.The cathode active materials of the compounds described above which have been decomposed thermally may be characterized by X-ray diffraction.Advantageously, the cathode active compounds of the present invention cells may simply be cold pressed into a cathode structure. Alternatively, they may be hot pressed (wherein at least partial thermal decomposition is inherent), into a cathode structure, although the thermal decompositions described may be employed prior to cathode construction. The cathode-active material may be supported on structures such as carbon, copper, nickel, stainless steel, iron, etc., and it may be supported on such materials or it may be impregnated into such materials. Advantageously, the cathode need not contain any conductive diluents within the cathode active material, such as carbon. However, plastic binding agents such as polyfluoroethylene may be utilized if desired.The electrolyte used in the cell of the present invention is any electrolyte which is chemically inert with respect to the anode and with respect to the cathode, and which permits the migration of ions between the anode and the cathode. In general, the choice of electrolyte depends upon the anode-active material being used in the cell. Thus, where the anode-active material is a Group IA metal, the electrolyte will most likely be nonaqueous. However, where the anode-active material is one which is selected, for example, from the Group IIB metals, an aqueous electrolyte may be employed. When the preferred anode-active material selected from the Group IA metals is used in a cell in the present invention, the electrolyte may typically be a nonaqueous alkali metal salt-organic solvent electrolyte solution. These alkali metal salts are well known in the art and need not be enumerated herein. However, such salts include the lithium and sodium salt complexes which are dissolved in organic solvents such as the inertly substituted and unsubstituted ethers, sulfones, organic sulfates, organic sulfites, organic nitrites and organic nitro compounds. One preferred electrolyte for use in conjunction with cells containing lithium as its anode-active material is an electrolyte containing lithium perchlorate salt dissolved in dioxolane or a dioxolane-containing solution. One preferred electrolyte in cells containing sodium as its anode-active material contains sodium triethyl pyrrole boron dissolved in a cyclic ether containing solution. Alternatively, solid electrolytes, such as the beta aluminas or halides, or molten salts, may be used.The electric current-producing cells of the present invention containing the above-mentioned anodes, cathodes and electrolytes not only have high energy densities, but are also capable of being cycled through charging and discharging, and may be readily produced on a large-scale basis.
    • 本发明涉及一种电流产生电池,其包含:
    • 43. 发明授权
    • Heteropolyoxo vanadium compounds containing molecular anions and their
structure
    • 含有分子阴离子的杂多钒化合物及其结构
    • US5047567A
    • 1991-09-10
    • US583406
    • 1990-09-17
    • Guohe HuanAllan J. Jacobson
    • Guohe HuanAllan J. Jacobson
    • C07F9/38C07F9/70
    • C07F9/703C07F9/38
    • A solid composition of matter comprising heteropolyoxo vanadium oxide compounds of the general formula: (R'.sub.4 N).sub.x H.sub.y (VO.sub.b).sub.a (RQO.sub.3).sub.-- nH.sub.2 O) wherein (VO.sub.b).sub.a (RQO.sub.3) is a molecular anion; R' is a substituted or unsubstituted monovalent organic group covalently bound to nitrogen to form a tetraorgano ammonium cation (R'.sub.4 N); R is a substituted or unsubstituted monovalent organic group covalently bound to Q to form an organophosphorus or organoarsenous group; R and R' are selected from the group consisting of C.sub.1 -C.sub.20 alkyl, aryl, hetero alkyl, hetero aryl or mixtures thereof; Q is a phosphorus or arsenic atom; a is about 1.0 to about 3.0; b is about 1.0 to about 2.0; (x+y) are determined by the vanadium oxidation state (m) where (x+y) equals (2ab+2)-ma and where (x+y) and x can not equal zero; and n is zero or a positive number.
    • 包含通式为(R'4N)xHy(VOb)a(RQO3)-nH2O)的杂多氧化钒化合物的固体组合物,其中(VOb)a(RQO3)是分子阴离子; R'是与氮共价结合以形成四有机铵阳离子(R'4N)的取代或未取代的一价有机基团。 R是与Q共价结合形成有机磷或有机砷基团的取代或未取代的一价有机基团; R和R'选自C1-C20烷基,芳基,杂烷基,杂芳基或其混合物; Q是磷或砷原子; a为约1.0至约3.0; b为约1.0至约2.0; (x + y)由钒氧化态(m)确定,其中(x + y)等于(2ab + 2)-ma,其中(x + y)和x不能等于零; n为零或正数。
    • 45. 发明授权
    • High energy density plural chalcogenide cathode-containing cell
    • 高能密度多硫族化物阴极电池
    • US4233375A
    • 1980-11-11
    • US63107
    • 1979-08-02
    • M. Stanley WhittinghamAllan J. Jacobson
    • M. Stanley WhittinghamAllan J. Jacobson
    • H01M4/36H01M4/58H01M6/14
    • H01M4/5815H01M4/36H01M4/364
    • The present invention is directed to electric current-producing cells having specified mixed cathodes. The cells comprise: (a) an anode having as its anode-active material one or more metals selected from the group consisting of the Periodic Table Group IA metals, Group IB metals, Group IIA metals and Group IIB metals; (b) a cathode having as its cathode-active material a mixture containing: (i) one or more cathode-active, high energy density chalcogenide compounds selected from the group consisting of VS.sub.a, VO.sub.a, C.sub.x S, MoO.sub.z and MoS.sub.z, wherein a is a numerical value of about 1.8 to about 2.7, wherein x is a numerical value of about 4 to about 16 and wherein z is a numerical value of about 2.5 to about 3.5; and (ii) one or more cathode-active, high rate chalcogenide compounds selected from the group consisting of TiS.sub.y, TiSe.sub.y and VSe.sub.y wherein y is a numerical value of about 1.8 to about 2.2; and (c) an electrolyte which is chemically inert with respect to said anode and said cathode and which permits the migration of ions between said anode and said cathode. A preferred embodiment contains a lithiumactive material anode and a cathode containing a mixture of MoS.sub.3 and TiS.sub.2.
    • 本发明涉及具有特定混合阴极的电流产生电池。 电池包括:(a)阳极,其具有作为其阳极活性材料的一种或多种金属,其选自元素周期表IA族金属,第IB族金属,IIA族金属和IIB族金属; (b)具有作为其阴极活性材料的阴极,其混合物包含:(i)一种或多种选自VSa,VOa,CxS,MoOz和MoSz的阴极活性高能量密度硫属化物化合物,其中a为 约1.8至约2.7的数值,其中x为约4至约16的数值,并且其中z为约2.5至约3.5的数值; 和(ii)一种或多种选自TiSy,TiSey和VSey + L的阴极活性的高比率硫族化物化合物,其中y是约1.8至约2.2的数值; 和(c)相对于所述阳极和所述阴极化学惰性的电解质,并允许离子在所述阳极和所述阴极之间迁移。 优选的实施方案包含含有MoS 3和TiS 2的混合物的锂活性材料阳极和阴极。