公开(公告)号：US20100009260A1

公开(公告)日：2010-01-14

申请号：US12500914

申请日：2009-07-10

申请人： Akihide TANAKA ,  Hidetoshi Honbou

发明人： Akihide TANAKA ,  Hidetoshi Honbou

IPC分类号： H01M4/58

CPC分类号： H01M4/587 ,  H01M4/133 ,  H01M4/1393 ,  H01M2004/021

摘要： The present invention is to provide a lithium ion secondary battery that realizes to raise an initial charge and discharge efficiency without deteriorating its charge and discharge characteristic in comparison with the conventional technology.A carbon material and a lithium ion secondary battery using the carbon material as the anode material, wherein the face interval d002 of the carbon material determined by an X ray diffraction apparatus is not less than 0.340 nm and not more than 0.370 nm, and further, V1/V2 representing a ratio of a volume V1 of pores having diameters from not less than 1 nm to less than 10 nm in the carbon material with respect to a volume V2 of pores having diameters from not less than 10 nm to less than 100 nm therein is not more than 0.2.

摘要翻译： 本发明是提供一种实现提高初始充放电效率而不劣化其充放电特性的锂离子二次电池，与现有技术相比。 使用碳材料作为负极材料的碳材料和锂离子二次电池，其中由X射线衍射装置确定的碳材料的面间距d002不小于0.340nm且不大于0.370nm，此外， V1 / V2表示碳材料中直径不小于1nm至小于10nm的孔的体积V1相对于直径不小于10nm至小于100nm的孔的体积V2的比率 其中不超过0.2。

公开(公告)号：US20110206988A1

公开(公告)日：2011-08-25

申请号：US13028243

申请日：2011-02-16

申请人： Akihide TANAKA ,  Etsuko NISHIMURA

发明人： Akihide TANAKA ,  Etsuko NISHIMURA

IPC分类号： H01M4/48 ,  H01M4/525 ,  H01M4/50 ,  H01M4/583

CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/36 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/625 ,  H01M4/64 ,  H01M10/0525 ,  Y02E60/122 ,  Y02T10/7011

摘要： An object of the present invention is to provide a lithium ion battery which is excellent in properties at large current and can be applied to applications requiring high output power even when the mixture layers are made thick. The present invention provides a lithium ion battery including a positive electrode including a positive electrode mixture layer formed on a current collector, a negative electrode including a negative electrode mixture layer formed on a current collector and an electrolyte, the positive electrode and the negative electrode being disposed through the intermediary of a separator, wherein the positive electrode includes as a positive electrode active material a lithium composite oxide represented by LiNiaMnbCOcMdO2 (in the formula, M is at least one selected from the group consisting of Fe, V, Ti, Cu, Al, Sn, Zn, Mg, B and W, a+b+c+d=1, 0.2≦a≦0.8, 0.1≦b≦0.4, 0≦c≦0.4 and 0≦d≦0.1), the negative electrode includes graphite as a negative electrode active material, the interlayer distance (d002) of the graphite is 0.335 nm or more and 0.338 nm or less, the one-side thickness A (μm) of the positive electrode mixture layer is 60 or more and 85 or less, the product A×B between the one-side thickness A and the density B (g/cm3) of the positive electrode mixture layer is 160 or more and 220 or less, the one-side thickness C (μm) of the negative electrode mixture layer is 40 or more and 75 or less, and the product C×D between the one-side thickness C and the density D (g/cm3) of the negative electrode mixture layer is 65 or more and 105 or less.

摘要翻译： 本发明的目的是提供一种在大电流下性能优异的锂离子电池，并且即使当混合层变厚时也可以应用于需要高输出功率的应用。 本发明提供一种锂离子电池，其包括正极，其包含在集电体上形成的正极合剂层，负极包含形成在集电体上的负极混合层和电解质，所述正极和负极为 通过分离器的中间放置，其中所述正极包括作为正极活性物质的由LiNiMnbCOcMdO 2表示的锂复合氧化物（在该式中，M为选自Fe，V，Ti，Cu中的至少一种， Al，Sn，Zn，Mg，B和W，a + b + c + d = 1,2,0＆amp; nlE; a＆nlE; 0.8,0.1和nlE; b＆nlE; 0.4,0和nlE; c＆nlE; 0.4和0＆amp; nlE; d＆nlE; 0.1） 负极包括石墨作为负极活性物质，石墨的层间距离（d002）为0.335nm以上且0.338nm以下，正极复合层的单面厚度A（μm）为60以上 和85以下，产品 正极复合层的单面厚度A和密度B（g / cm 3）之间的角度A×B为160以上且220以下，负极混合层的单面厚度C（μm） 为40以上且75以下，单面厚度C与负极混合层的密度D（g / cm 3）之间的乘积C×D为65以上且105以下。

公开(公告)号：US20110193529A1

公开(公告)日：2011-08-11

申请号：US13022718

申请日：2011-02-08

申请人： Etsuko NISHIMURA ,  Katsunori NISHIMURA ,  Akihide TANAKA

发明人： Etsuko NISHIMURA ,  Katsunori NISHIMURA ,  Akihide TANAKA

IPC分类号： H02J7/04 ,  H01M4/583

CPC分类号： H01M10/0525 ,  H01M4/587 ,  H01M10/441 ,  H01M10/48 ,  H02J7/0004 ,  Y02T10/7011

摘要： A lithium-ion secondary battery system is provided which can improve the cycle life and the storage property of a lithium-ion secondary battery and can decrease a discharge capacity which cannot be recharged. The lithium-ion secondary battery system includes a lithium-ion secondary battery having a cathode, an anode including carbon, and a non-aqueous electrolyte; a charge/discharge circuit for putting the lithium-ion secondary battery on charge according to a charge control parameter; and an arithmetic processing section for controlling the charge/discharge circuit. The arithmetic processing section obtains battery characteristics of the lithium-ion secondary battery, changes a value of the charge control parameter when the arithmetic processing section determines that the battery characteristics satisfies a condition for changing the charge control parameter, and restores the value of the charge control parameter to the value before the change when the charge for the lithium-ion secondary battery is finished.

摘要翻译： 提供了能够提高锂离子二次电池的循环寿命和保存性的锂离子二次电池系统，能够降低不能再充电的放电容量。 锂离子二次电池系统包括具有阴极的锂离子二次电池，包含碳的阳极和非水电解质; 用于根据充电控制参数对锂离子二次电池进行充电的充电/放电电路; 以及用于控制充放电电路的运算处理部。 算术处理部分获得锂离子二次电池的电池特性，当运算处理部确定电池特性满足用于改变充电控制参数的条件时，改变充电控制参数的值，并且恢复充电值 控制参数为锂离子二次电池的充电完成之前的变化值。