摘要:
Hydrogen absorbing ZrMn2 alloys having MgZn2-type Laves phase structure with its Mn partially substituted by Co and containing Al as an additive and having the composition Zr(Mn1-=xCox)y Alz;Hydrogen absorbing ZrMn2 alloys having MgZn2-type Laves-phase structure with its Mn partially substituted by Co and Zr partially substituted Zr1-wTiw(Mn1-xCox)y Alz; andHydrogen absorbing alloys formed from ZrMn2 alloy having MgZn2-type Laves-phase structure or from a multicomponent alloy made therefrom by partially substituting the Zr and Mn with some other element, by further adding thereto at least one element or rare earth, Ca, and Mg.
摘要:
A rechargeable secondary cell having the following as main components: a positive electrode formed of a conductive polymer, a negative electrode, a separator disposed between the positive and negative electrodes, an electrolyte comprising a mixed solvent of .gamma.-butyrolactone and a cyclic carbonic ester compound or ethylene carbonate, each being expressed by the following chemical formula. ##STR1## (where R.sup.1 is a lower alkyl group having 1-3 carbon atoms and R.sup.2 is a hydrogen atom or a methyl group, R.sup.2 being a hydrogen atom, and R.sup.1 being a group other than the methyl group.)
摘要:
A rechargeable non-aqueous secondary cell comprises, as main components thereof, a positive electrode, a negative electrode, a separator disposed between the positive electrode and negative electrode, and a non-aqueous electrolyte. The positive electrode includes a rechargeable active material, and the negative electrode is formed of lithium-aluminum alloy and has an aluminum plate added with manganese as a base material.
摘要:
An electrically conductive material containing no substantial amount of water and prepared by polymerizing, in the presence of an oxidizing agent, a compound having conjugated double bonds on a base material in a gas phase. The base material has spaces capable of retaining the oxidizing agent. The electrically conductive material is used for at least one electrode of a secondary battery.
摘要:
Provided is a novel lithium secondary battery comprising a positive electrode comprising a compound capable of occluding and discharging lithium, a negative electrode composed mainly of a carbon material which comprises a graphite as an only or as a principal component, a separator between said positive electrode and said negative electrode; and an electrolyte solution of an electrolyte solute dissolved in a solvent comprising at least one specific cyclic compound. The lithium secondary battery has a large capacity, small self-discharge rate and excellent cycle characteristics and high charge-discharge efficiency.
摘要:
The present invention provides a secondary cell with an enlarged capacity, therefore enlarging a discharge capacity as well as improving charge/discharge cycle characteristics. The secondary cell has a carbon material for a negative electrode, wherein the spacing of (002) planes d.sub.002, a true density, a crystallite size in the direction of c axis Lc, a and specific surface area of the carbon material are restricted to ranges of 3.39.ANG. to 3.62.ANG., 1.70 g/cc to 2.20 g/cc, 10.ANG. to 50.ANG., and 2 m.sup.2 /g to 50 m.sup.2, respectively. The carbon material is selected from a carbon material group consisting of needle cokes, pitch cokes, and coke derived from furfuryl alcohol.
摘要翻译:本发明提供一种具有放大容量的二次电池,因此放大放电容量以及改善充电/放电循环特性。 二次电池具有用于负极的碳材料,其中(002)面d002的间隔,真实密度,c轴Lc方向的微晶尺寸a和碳材料的比表面积被限制在范围内 3.39 ANGSTROM至3.62 ANGSTROM,1.70 g / cc至2.20 g / cc,10 ANGSTROM至50 ANGSTROM,分别为2 m2 / g至50 m2。 碳材料选自由针状焦炭,沥青焦炭和源自糠醇的焦炭组成的碳材料组。
摘要:
A hydrogen-absorbing alloy electrode for an alkaline storage cell, the electrode including a hydrogen-absorbing alloy expressed by a composition formula ReBxMy, wherein Re is at least one element selected from a group consisting of rare earth elements and alkali earth elements, B is boron, and M is at least one element selected from a group consisting of Ni, Co, Mn, Al, Cr, Fe, Cu. Sn, Sb, Mo, V, Nb, Ta, Zn, Zr and Ti. The alloy consists essentially of an RM.sub.y main metal phase, and a subordinate boron-containing phase, such as a compound phase of boron and a IV-a, V-a, or VI-a group metal.
摘要:
A hydrogen-absorbing alloy electrode for use in an alkaline storage cell, comprising a hydrogen-absorbing alloy for reversibly absorbing and desorbing hydrogen; and a metal oxide or metal hydroxide existing in the state of a metal in a range of electric potential where said hydrogen-absorbing alloy electrochemically absorbs and desorbs hydrogen in an alkaline electrolyte.
摘要:
A metal-hydrogen alkaline storage cell comprising a rare earth hydrogen absorbing alloy and positive and negative electrodes, wherein the rare earth hydrogen absorbing alloy contains praseodymium in a weight ratio of no more than about 3 weight percent based on the total weight of rare earth elements.
摘要:
A non-aqueous secondary cell is provided which is repeatedly chargeable and dischargeable. This cell comprises, as main components thereof, a negative electrode, a positive electrode, and a separator disposed between the negative and positive electrode and impregnated with an electrolyte. The negative electrode has lithium or lithium alloy as the active material. The positive electrode has manganese dioxide as the active material and contains Li.sub.2 MnO.sub.3.