会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 27. 发明申请
    • Nonaqueous Electrolyte Secondary Battery and Negative Electrode Thereof
    • 非水电解质二次电池及其负电极
    • US20080118844A1
    • 2008-05-22
    • US11629654
    • 2005-06-06
    • Yukihiro MiyamotoMasao MiyakeEtsuko MiyakeTooru FuseTomohiro SatouYouji Arita
    • Yukihiro MiyamotoMasao MiyakeEtsuko MiyakeTooru FuseTomohiro SatouYouji Arita
    • H01M4/38C23C16/22C23C14/34
    • H01M10/0525H01M4/134H01M4/1395H01M4/364H01M4/38H01M4/386H01M4/58H01M10/0569
    • A negative electrode yields a high-performance nonaqueous electrolyte secondary battery which has a high discharging capacity, high charging/discharging efficiency in the initial stage and during cyclic operation, and excellent properties in cyclic operation, and the electrode of which less expands after cyclic operation. The negative electrode includes an active material thin film which mainly contains a compound represented by a general formula SiZxMy, wherein Z, M, “x” and “y” satisfy the following conditions, of a phase including an element Z lying in a nonequilibrium state in silicon. The element Z is at least one element selected from the group consisting of boron, carbon, and nitrogen. The element M is other than silicon and the element Z and is at least one element selected from the elements of Groups 2, 4, 8, 9, 10, 11, 13, 14, 15, and 16 of the Periodic Table of Elements. The number “x” is such a value that a Z-concentration ratio Q(Z) falls within the range of 0.10 to 0.95. The Z-concentration ratio Q(Z) is calculated with respect to the Z-concentration (p/(a+p)) of a compound SiaZp having a composition closest to silicon and being present in equilibrium, wherein “a” and “p” are integers according to the following equation: Q(Z)=[x/(1+x)]/[p/(a+p)]. The number “y” is 0 or more and 0.50 or less.
    • 负极产生具有高放电容量,初期阶段和循环运转期间高充电/放电效率的高性能非水电解质二次电池,并且循环操作具有优异的特性,循环运行后电极扩展少的电极 。 负极包括主要含有通式为SiZ x M y Y y的化合物的活性物质薄膜,其中Z,M,“x”和“y” 满足以下条件,包括在硅中处于非平衡状态的元素Z的相。 元素Z是选自硼,碳和氮中的至少一种元素。 元素M不同于硅,元素Z是选自元素周期表第2,4,8,9,10,11,13,14,15和16族元素中的至少一种元素。 数“x”是Z浓度比Q(Z)在0.10〜0.95的范围内的值。 Z化合物Z(Z)相对于具有化合物的Z浓度(p /(a + p))计算, 其中“a”和“p”是根据下列等式的整数:Q(Z)= [x /(1 + x)] / [p /(a + p)] 。 数字“y”为0以上且0.50以下。