Abstract:
PURPOSE:To surely operate a current cutoff means at the time of overcharging by mainly constituting a positive electrode active material with the first active material and the second active material having preset compositions respectively. CONSTITUTION:The active material of a positive electrode 31 is mainly constituted of the first active material and the second active material, the first active material is made of LixNiyCo1-yO2 (where 0
Abstract:
PROBLEM TO BE SOLVED: To provide a battery enhancing load characteristics, low temperature characteristics, and high-temperature cycle characteristics. SOLUTION: A positive electrode 13 contains a lithium cobalt composite oxide represented by Li a Co x MI y MII z O 2 (MI is at least one kind selected from Al, Cr, V, Mn, and Fe, MII is at least one kind of Mg and Ca, 0.9≤a≤1.1, 0.9≤x≤1, 0.001≤y≤0.05, 0.001≤z≤0.05, and x+y+z=1) and also contains Zr as a sub-component element. The content of Zr is in a range of 0.01-10 mol% in the ratio (Zr/Co) to Co of the lithium cobalt composite oxide. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation:要解决的问题:提供电池增强负载特性,低温特性和高温循环特性。 解决方案:正极13包含由LiSi表示的锂钴复合氧化物,其中M 1为S SB> (MI是选自Al,Cr,V,Mn和Fe中的至少一种,MII是Mg和Ca中的至少一种,0.9≤a≤1.1,0.9 ≤x≤1,0.1≤y≤0.05,0.001≤z≤0.05,x + y + z = 1),并且还含有Zr作为副成分元素。 Zr的含量与钴酸钴复合氧化物的(Zr / Co)与Co的比例为0.01-10摩尔%。 版权所有(C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a battery for improving cycle characteristics, and to provide an electrolyte used for the battery. SOLUTION: The battery has an electrode WINDER 20 in which a positive electrode 21 and a negative electrode 22 are laminated and wound via a separator inside a battery can, and the electrolyte is impregnated to the separator. The electrolyte contains a compound expressed by an expression (at least one of X1-X4 in the expression is a substituent having a keto functional group). COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a battery which can suppress self electric discharge even if it is left in high temperature condition, and an electrolyte used for it. SOLUTION: An electrode winding body 20 in which a positive electrode 21 and a negative electrode 22 are laminated via separators 23 and wound is equipped in the inside of a battery can. An electrolytic solution is impregnated in the separators 23. The electrolytic solution contains a compound having a structure shown in Figure b. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a positive electrode activator capable of achieving a lithium ion nonaqueous electrolyte secondary battery which has high capacity and highly improves a property at a high temperature (from room temperature to 1,000 °C), and to provide the lithium ion nonaqueous electrolyte secondary battery using the positive electrode active material. SOLUTION: The positive electrode activator for the lithium ion nonaqueous electrolyte secondary battery has a layered structure, and includes a lithium compound oxide containing Li and Ni as constituent component elements, of which, a shift width at a position of 50% of a jumping height at a K sell absorption end of a nickel atom which can be measured by an XAFS (X-ray absorption end fine structure) method when a half amount total nickel is extracted, is not less than 1.0 eV. The lithium ion nonaqueous electrolyte secondary battery using the positive electrode active material has a positive and a negative electrodes having materials capable of doping and de-doping the lithium ion as positive or negative electrode activators respectively, and has a nonaqueous electrolyte in which an electrolyte is dispersed in a nonaqueous medium. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a positive electrode activator in which lowness of the diffusion velocity of the ion species and lowness of the electron conductivity are compensated, having a good charge and discharge capacity close to the theoretical capacity and good load characteristics, and a non-aqueous electrolyte secondary battery utilizing the same, and a manufacturing method of the same. SOLUTION: The positive electrode activator is a compound having an olivine type crystal structure that is expressed by general formula Li x MPO 4 (in the formula, 0.05 ≤ x ≤ 1.2, M is one kind selected from Fe, Mn, Co, Ni, Cu, Zn, Mg, Cr, V, Mo, Ti, Al, Nb, B, and Ga.), having average crystal size of 140 nm or less. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To improve the property of a battery. SOLUTION: A positive electrode 2, a negative electrode 3 and an electrolyte are enclosed in a battery can 5 together, and one or a plurality of kinds of metal elements and/or metal ions among Co, Ni, Cu, Zn, Sn, Cr, V, Ti, Fe, Ag, Pb, Nb, Zr, W, Pt, Au, and Si are included in the electrolyte. As a result, the positive electrode active material melting out to the surface of the charged/ discharged negative electrode 3 is prevented from depositing to make a film, and therefore, the property of the battery can be improved. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To have battery characteristics under normal environment compatible with that under high temperature environment. SOLUTION: The nonaqueous electrolyte solution secondary battery is provided with a positive electrode including a manganese-containing oxide containing a first element of at least one kind selected from a group consisting of lithium (Li), manganese (Mn), a metal element other than manganese and boron, and oxygen (O) with mole ratio of the first element to above manganese (the first element/manganese) within the range of not less than 0.01/1.99 and not more than 0.5/1.5 and a nickel-containing oxide containing a second element of at least one kind selected from lithium, nickel (Ni), a metal element other than nickel, and boron, and oxygen with mole ratio of the second element to above nickel (the second element/nickel) within the range of not less than 0.01/0.99 and not more than 0.5/0.5, a negative electrode containing at least one kind from materials which can dope/dedope lithium metal, lithium alloy, or lithium as a negative electrode active material, and nonaqueous electrolyte solution with electrolyte dissolved in nonaqueous solvent. The nonaqueous electrolyte solution contains one or more cyclic carbonate and one or more chain carbonate.
Abstract:
PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte secondary battery excellent in electricity recharging/discharging cycle characteristic. SOLUTION: The non-aqueous electrolyte secondary battery is constituted of a positive electrode, which contains a manganese content oxide and a nickel content oxide as a positive-pole active material, a negative pole, in which at least one or more kinds of materials of a lithium metal, a lithium alloy or the material, which can dope/de-dope lithium are possible, are contained as a negative-electrode active material, and a non-aqueous electrolyte, wherein the average specific surface area of the above positive-electrode active material is 0.2 m2/g or more and 1.5 m2/g or less, and amount of remains of Li2CO3, which remains to the positive-electrode active material, is more than 5.0% or less of the total weight of the positive-electrode active material.
Abstract:
PROBLEM TO BE SOLVED: To make high capacity and control of battery temperature rising at the time of over-charge compatible. SOLUTION: A compound expressed by a general formula LimCoxAyBzO2 (however, A is at least one sort of elements chosen from Al, Cr, Mn, and Fe. Moreover, B is at least one sort of elements chosen from Mg and Ca. Moreover, it is 0.9