公开(公告)号：US20160036038A1

公开(公告)日：2016-02-04

申请号：US14640934

申请日：2015-03-06

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hiromichi KURIYAMA ,  Hidesato SARUWATARI ,  Tetsuro KANO ,  Yuki WATANABE ,  Norio TAKAMI

IPC: H01M4/131 ,  H01M4/525 ,  H01M4/505 ,  H01M4/485

CPC classification number: H01M4/131 ,  H01M2/0285 ,  H01M2/0287 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2010/4292

Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a negative electrode, a positive electrode, and a nonaqueous electrolyte. The positive electrode includes a nickel-cobalt-manganese composite oxide represented by a composition formula Li1-aNixCoyMnzO2. Subscripts x, y, and z satisfy an inequality 0.1≦x/(y+z)≦1.3, and subscript a satisfies 0≦a≦1. A ratio AS/ANi of an S atom abundance ratio AS to an Ni atom abundance ratio ANi of a surface of the positive electrode is 0.4 to 5. A ratio p/n of a capacity p of the positive electrode to a capacity n of the negative electrode is within a range of 1.2 to 2.

Abstract translation: 根据一个实施例，提供一种非水电解质电池。 非水电解质电池包括负极，正极和非水电解质。 正极包括由组成式Li1-aNixCoyMnzO2表示的镍钴锰复合氧化物。 下标x，y和z满足不等式0.1＆nlE; x /（y + z）＆nlE; 1.3，下标a满足0＆nlE; a＆nlE; 1。 S原子丰度比AS与正电极表面的Ni原子丰度比ANi的比例AS / ANi为0.4〜5。正极的电容p与电容器n的电容n的比p / n 负极在1.2〜2的范围内。