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1. 发明申请

US20050158550A1 Negative electrode material for lithium ion secondary battery 有权
标题翻译：锂离子二次电池用负极材料
公开(公告)号：US20050158550A1
公开(公告)日：2005-07-21
申请号：US10501333
申请日：2003-01-24
申请人： Naoto Ohta , Katsuhide Nagaoka , Kazuhito Hoshi , Hidehiko Nozaki , Tatsuro Tojo , Toshiaki Sogabe
发明人： Naoto Ohta , Katsuhide Nagaoka , Kazuhito Hoshi , Hidehiko Nozaki , Tatsuro Tojo , Toshiaki Sogabe
IPC分类号： H01M4/36 , B32B27/00 , H01M4/133 , H01M4/583 , H01M4/587 , H01M10/0525 , H01M4/58
CPC分类号： H01M4/133 , H01M4/366 , H01M4/587 , H01M10/0525 , H01M2004/021 , Y10T428/2998
摘要： The invention provides an anode material for lithium ion secondary battery using a coated graphite powder as a raw material. The coated graphite powder is coated with carbonized material of thermoplastic resin of a carbonization yield of not more than 20 wt % in a proportion of not more than 10 parts by weight the carbonized material per 100 parts by weight graphite powder. The graphite powder as coated with thermoplastic resin increases 5% or more in accumulative pore volume of the graphite powder having a pore size of 0.012 μm to 40 μm as measured by a mercury porosimeter method, as compared with the graphite powder before coated with the thermoplastic resin. The coated graphite powder has a mesopore volume defined by IUPAC of 0.01 cc/g or less as calculated with the BJH method as viewed from desorption isotherm, which is also equal to 60% or less of the pore volume of the graphite powder before coated with the thermoplastic resin, an average particle size ranging from 10 μm to 50 μm, as measured by a laser-scattering-particle-size-distribution measuring device, and a ratio of standard deviation to the average particle size (σ/D) of 0.02 or less.
摘要翻译：本发明提供一种使用涂覆石墨粉作为原料的锂离子二次电池的负极材料。涂覆的石墨粉末以每100重量份石墨粉末碳化材料不超过10重量份的比例涂覆碳化产率为20重量％以下的热塑性树脂碳化材料。与热塑性树脂一起涂覆的石墨粉末，与用热塑性树脂涂覆之前的石墨粉末相比，通过水银孔率计法测量，孔径为0.012μm至40μm的石墨粉末的累积孔体积增加5％或更多树脂。涂覆的石墨粉末具有由解吸等温线观察时用BJH法计算的0.01cc / g以下的由IUPAC定义的中孔体积，其等于涂布前的石墨粉末的孔体积的60％以下热塑性树脂，通过激光散射 - 粒度分布测量装置测量的平均粒度为10〜50μm，标准偏差与平均粒径（sigma / D）的比值为0.02 或更少。

2. 发明授权

US07816037B2 Anode material for lithium ion secondary battery 有权
标题翻译：锂离子二次电池用阳极材料
公开(公告)号：US07816037B2
公开(公告)日：2010-10-19
申请号：US10501333
申请日：2003-01-24
申请人： Naoto Ohta , Katsuhide Nagaoka , Kazuhito Hoshi , Hidehiko Nozaki , Tetsuro Tojo , Toshiaki Sogabe
发明人： Naoto Ohta , Katsuhide Nagaoka , Kazuhito Hoshi , Hidehiko Nozaki , Tetsuro Tojo , Toshiaki Sogabe
IPC分类号： H01M4/58
CPC分类号： H01M4/133 , H01M4/366 , H01M4/587 , H01M10/0525 , H01M2004/021 , Y10T428/2998
摘要： The invention provides an anode material for lithium ion secondary battery using a coated graphite powder as a raw material, which is coated thermoplastic resin of a carbonization yield of ≦20 wt % in a proportion of ≦10 parts by weight the carbonized material per 100 parts by weight graphite powder. Coating with thermoplastic resin increases the accumulative pore volume by ≦5%, relative to the uncoated powder, and results in pore sizes of 0.012-40 μm via mercury porosimeter method. Calculated with the BJH method as viewed from desorption isotherm, the coated graphite powder has a mesopore volume ≦0.01 cc/g or ≦60% of the pore volume of the uncoated graphite powder. This coated powder also has an average particle size ranging from 10-50 μm measured by a laser-scattering-particle-size-distribution measuring device, and a standard deviation to the average particle size (σ/D) ratio of ≦0.02.
摘要翻译：本发明提供一种使用涂覆石墨粉末作为原料的锂离子二次电池的负极材料，其为碳化产率为＆lt; nEE的涂层热塑性树脂;以＆lt; NEE为20重量％; 10重量份碳化材料 100重量份石墨粉。用热塑性树脂涂层，相对于未涂覆的粉末，累积孔体积增加了±10％; 5％，通过汞孔率计法得到0.012-40μm的孔径。用解吸等温线观察的BJH方法计算，涂覆的石墨粉末的中孔体积为0.01cc / g或者nlE;未涂覆石墨粉末的孔体积的60％。该涂覆粉末还具有通过激光散射 - 粒度分布测量装置测量的10-50μm的平均粒径，并且与平均粒径（＆amp; Gr / D）比率＆n1E的标准偏差为0.02 。

3. 发明申请

US20090280413A1 CARBON MATERIAL FOR LITHIUM-ION SECONDARY BATTERY NEGATIVE ELECTRODE, LOW-CRYSTALLINE CARBON IMPREGNATED CARBON MATERIAL FOR LITHIUM-ION SECONDARY BATTERY NEGATIVE ELECTRODE, NEGATIVE ELECTRODE PLATE, AND LITHIUM-ION SECONDARY BATTERY 审中-公开
标题翻译：用于锂离子二次电池负极电极，负极电极板和锂离子二次电池的低结晶碳碳材料用于锂离子二次电池负极的碳材料
公开(公告)号：US20090280413A1
公开(公告)日：2009-11-12
申请号：US12439311
申请日：2007-07-06
申请人： Naoto Ohta , Kazuhito Hoshi , Shingo Bito , Akio Yamanaka , Tomoyuki Okuni
发明人： Naoto Ohta , Kazuhito Hoshi , Shingo Bito , Akio Yamanaka , Tomoyuki Okuni
IPC分类号： H01M4/58
CPC分类号： H01M4/133 , C01B32/20 , H01M4/1393 , H01M4/583 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： There is obtained a carbon material for lithium-ion secondary battery negative electrode, a low-crystalline carbon impregnated carbon material for lithium-ion secondary battery negative electrode, a negative electrode plate, and a lithium-ion secondary battery, each of which realizes a first charge/discharge cycle with less gas generation and provides a rapid charge/discharge. The carbon material is obtained by: blending and kneading a carbonaceous aggregate with a binder to form a composition; press molding the composition into an article; carbonizing the press molded article; graphitizing the article to obtain an artificial graphite block; milling the block; and carrying out particle size control. The carbon material has characteristics of: (1) R-value=(I1360/I1580)≧0.2, where R-value is defined by the ratio of D band to G band in Raman spectrum using Nd:YAG laser light of 532 nm wavelength; and (2) d(002)≧0.336 nm, and Lc(002)≦50 nm, where d(002) and Lc(002) are crystallographic parameters calculated by Gakushin-method. The carbon material is used for the negative electrode plate of a lithium-ion secondary battery, and used in the lithium-ion secondary battery having therein the negative electrode plate.
摘要翻译：得到锂离子二次电池用负极用碳材料，锂离子二次电池用负极用低碳碳浸渍碳材料，负极板，锂离子二次电池，实现了第一次充放电循环，气体产生较少，并提供快速充放电。碳材料通过以下方式获得：将碳质骨料与粘合剂混合并捏合以形成组合物; 将组合物压制成制品; 将压制成型品碳化; 石墨化制品以获得人造石墨块; 铣块; 并进行粒度控制。碳材料具有以下特征：（1）R值=（I1360 / I1580）> = 0.2，其中R值由使用Nd：YAG激光532nm的拉曼光谱中的D带与G带的比率定义波长; 和（2）d（002）> = 0.336nm，Lc（002）<= 50nm，其中d（002）和Lc（002）是通过Gakushin方法计算的晶体参数。碳材料用于锂离子二次电池的负极板，并用于其中具有负极板的锂离子二次电池中。

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