公开(公告)号：EP2610949A1

公开(公告)日：2013-07-03

申请号：EP11819544.5

申请日：2011-07-29

Applicant: OSAKA Titanium Technologies Co., Ltd.

Inventor： YASUDA, Kouji ,  SHIMOSAKI, Shinji

IPC: H01M4/48 ,  H01G9/058 ,  H01M4/36 ,  H01M4/587

CPC classification number: H01M4/134 ,  H01G9/0425 ,  H01G9/145 ,  H01G11/06 ,  H01G11/26 ,  H01G11/50 ,  H01M4/36 ,  H01M4/366 ,  H01M4/483 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/027 ,  Y02E60/13

Abstract: Provided is a negative-electrode material powder for a lithium-ion secondary battery including a conductive carbon film on the surface of a lower silicon oxide powder, in which the total content of tar components measured by TPD-MS is not less than 1 ppm by mass and not more than 4000 ppm by mass, and in the Raman spectrum, peaks exist at 1350 cm -1 and 1580 cm -1 , while the peak at 1580 cm -1 has a half-value width of not less than 50 cm -1 and not more than 100 cm -1 . In the negative-electrode material powder, a specific surface area measured by the BET method is preferably not less than 0.3 m 2 /g and not more than 40 m 2 /g, and the proportion of the conductive carbon film is preferably not less than 0.2 mass% and not more than 10 mass%. A specific resistance of the lower silicon oxide powder is preferably not more than 40000 Ωcm, and a maximum value P1 of SiO x -incurred halos and a value P2 of the strongest line peak of Si (111) preferably satisfy a relationship of P2/P1

Abstract translation: 本发明提供一种由锂离子二次电池，其包括导电性碳皮膜的下部的氧化硅粉末的表面上的负极材料粉末，其中由TPD-MS测定焦油组分的总含量不小于1ppm 质量和不超过4000质量ppm，并且在拉曼光谱中，峰在1350 -1和1580cm -1存在，而1580 -1的峰具有不小于50cm的半值宽度 - 1和不超过100 -1。 在负电极材料粉末，通过BET方法测量的比表面积优选为不小于0.3米2 /克和不大于40米2 /克，以及导电性碳的比例薄膜优选不小于 0.2质量％并且不大于10质量％。 下部的氧化硅粉末的比电阻优选不超过40000©厘米，和SiO的极大值P1 X -incurred光晕和Si（111）的最强线峰的值P2优选满足P2的关系/ P1 <0.01测量XRD。 这使得有可能提供一种可被用于获得的锂离子二次电池为处于具有大放电容量和令人满意的循环特性实用水平耐用负极材料粉末。

公开(公告)号：EP2597708A1

公开(公告)日：2013-05-29

申请号：EP11809423.4

申请日：2011-07-08

Applicant: OSAKA Titanium Technologies Co., Ltd.

Inventor： YASUDA, Kouji ,  KIZAKI, Shingo ,  SHIMOSAKI, Shinji

IPC: H01M4/48 ,  H01G9/058 ,  H01M4/36

CPC classification number: H01M4/134 ,  H01G9/0425 ,  H01G11/06 ,  H01G11/30 ,  H01M4/131 ,  H01M4/366 ,  H01M4/485 ,  H01M4/625 ,  Y02E60/122 ,  Y02E60/13

Abstract: A negative electrode material powder for a lithium ion secondary battery having a conductive carbon film on the surface of a lower-silicon-oxide powder; wherein a specific surface area in BET measurement ranges from more than 0.3 m 2 /g to 40 m 2 /g, and no SiC peak appears at 2θ= 35.6°±0.01° or the half-value width of the appeared peak is 2° or more in XRD measurement using CuK α rays. The proportion of said carbon film preferably ranges from 0.2% to 2.5% by mass. Said powder preferably has 100000 Ωcm or less of specific resistance. In XRD, P2/P1 x and a value P2 of the strongest linear peak of Si (111) above the halo.
Accordingly, said powder can be used in the secondary battery with a large discharge capacity and a preferable cycle characteristics for practical use.

Abstract translation: 的负极材料粉末的较低氧化硅粉末的表面上形成具有导电性碳皮膜的锂离子二次电池; worin在BET测量范围从大于0.3米2 /克至40m 2 / g的比表面积，和没有的SiC峰2 = 35.6°±0.01°显示或该峰的半值宽度为2出现了 °或使用CuK更多在XRD测定±射线。 膜所述碳优选为0.2％至2.5质量％的比例。 所述粉末优选地具有100000©cm或更小的电阻率的。 在XRD，P2 / P1 <0.01是卤素以上的SiO x的卤素的最高值P1和Si（111）的最强峰线性的值P2之间优选地满足。 因此，所述粉末可以在二次电池中可使用具有大的放电容量和实际使用一个周期优选的特性。

公开(公告)号：EP2618407A1

公开(公告)日：2013-07-24

申请号：EP11832271.8

申请日：2011-10-07

Applicant: OSAKA Titanium Technologies Co., Ltd.

Inventor： YASUDA, Kouji ,  FUJITA, Takehisa ,  KIZAKI, Shingo ,  SHIMOSAKI, Shinji

IPC: H01M4/48 ,  H01G9/058 ,  H01M4/36

CPC classification number: H01M4/386 ,  H01G11/24 ,  H01G11/50 ,  H01M4/366 ,  H01M4/483 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/13

Abstract: In a lithium ion secondary battery using a negative electrode material powder including a lower silicon oxide powder as a negative electrode material, a charge electric potential at 0.45-1.0 V relative to a Li reference upon initial charging results in a lithium ion secondary battery having a large discharge capacity with excellent cycle characteristics, which can be durable in practical use. On this occasion, the charge electric potential being 0.45-1.0 V relative to the Li reference upon initial charging means that an electric potential plateau caused by the generation of Li-silicate is observed, and the Li-silicate is uniformly generated in the negative electrode material. The negative electrode material powder according to the present invention having the charge electric potential of 0.45-1.0 V relative to the Li reference upon initial charging prevents the negative electrode material from being finely torn apart upon charging/discharging which results in cycle characteristic degradation, and excellent cycle characteristics are obtained. It is preferable for the negative electrode material powder according to the present invention to have an electrically conductive carbon film on the surface, and for the ratio of the electrically conductive carbon film to the surface of the powder to be 0.2-10 mass %.

Abstract translation: 在使用负极材料粉末包括下部的氧化硅粉末作为负极材料，在0.45-1.0 V相的电荷电位在锂离子具有二次电池在初始充电的结果的锂基准的锂离子二次电池 放电容量大，具有优异的循环特性，可在实际使用耐用。 在这种情况下，充电电势是相对于在初始充电bedeutet锂参考0.45-1.0 V，DASS在由硅酸锂的生成引起的电位高原-观察到的，和硅酸锂在负电极均匀地产生 材料。 的负极材料粉末gemäß到本发明的具有相对于在初始充电时的锂参考0.45-1.0 V的电荷电位被精细地撕开时的充电/放电，这导致劣化的循环特性，防止负电极材料，以及 优异的循环特性得到。 优选的是，负极材料粉末gemäß到本发明的具有在导电的碳薄膜的表面，并为导电性碳电影到粉末的表面的比例为0.2〜10质量％。

公开(公告)号：EP2581970A1

公开(公告)日：2013-04-17

申请号：EP11795367.9

申请日：2011-06-03

Applicant: OSAKA Titanium Technologies Co., Ltd.

Inventor： YASUDA, Kouji ,  KIZAKI, Shingo ,  SHIMOSAKI, Shinji

IPC: H01M4/48 ,  H01G9/058 ,  H01M4/36

CPC classification number: H01M4/134 ,  H01G11/06 ,  H01G11/42 ,  H01G11/50 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M10/052 ,  Y02E60/13

Abstract: Provided is a negative-electrode material powder used for a lithium-ion secondary battery having a large discharge capacity and sufficient cycle characteristics as being durable in use. The powder for the battery includes a conductive carbon film on a lower silicon oxide powder, surface and satisfies requirements that: Si in SiC is 15.1 wt% or less in content, or A3 (=A2-A1) is 15.1 or less, given A1 (wt%): Si content measured by acid solution process, and A2 (wt%): Si content measured by alkali solution process; and a specific resistance is 30,000 Ωcm or less. In the lower silicon oxide powder, a maximum value P1 of SiO x -derived halos appearing at 2θ=10° to 30° and a value P2 of the strongest line peak of Si (111) appearing at 2θ=28.4±0.3°, in XRD using CuKα beam, preferably satisfy P2/P1

Abstract translation: 提供的是用于具有大放电容量和足够的循环特性为在使用耐用的锂离子二次电池的负极材料粉末。 对于电池内的粉末包括在下部的氧化硅粉末，表面和SATIS外资企业要求的导电性碳电影的是：硅在SiC中是15.1％（重量）或更少的内容，或A3（= A2-A1）为1.15或更小，给出A1 （重量％）：Si含量由酸溶液处理测量，并且A2（重量％）：Si含量通过碱溶液处理的测量; 和比电阻为30,000©cm以下。 在较低的氧化硅粉末的SiO的极大值P1 X衍生的晕圈在2 = 10°露面至30°和Si中的2 = 28.4±0.3°亮相的最强线的峰（111）的值P2 在使用CuK±光束XRD，优选满足P2 / P1 <0.01。 焦油成分的含量优选为1ppm以上且4000 ppm以下。