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11. 发明专利

JP2008066278A Negative electrode for non-aqueous electrolyte secondary battery 有权
标题翻译：用于非水电解质二次电池的负极
公开(公告)号：JP2008066278A
公开(公告)日：2008-03-21
申请号：JP2007085498
申请日：2007-03-28
申请人： Mitsui Mining & Smelting Co Ltd , 三井金属鉱業株式会社
发明人： MOTEGI AKIHIRO , MATSUSHIMA TOMOYOSHI , MOMOTAKE MASAHIRO , YASUDA KIYOTAKA , NIIZAWA KAYOKO , SAKAGUCHI YOSHIKI
IPC分类号： H01M4/02 , H01M2/16 , H01M4/133 , H01M4/134 , H01M4/1395 , H01M4/485 , H01M10/0566
CPC分类号： H01M10/0525 , H01M4/134 , H01M4/386 , H01M4/625 , H01M2004/021
摘要： PROBLEM TO BE SOLVED: To provide a negative electrode for non-aqueous electrolyte secondary batteries for improving cycle characteristics. SOLUTION: The negative electrode 10 for non-aqueous electrolyte secondary batteries comprises an active material layer 12 containing a particle 12a of an active material. At least a part of the surface of the particle 12a is coated with a metal material 13 having a poor ability of forming a lithium compound. A void is formed between the particles 12a coated with the metal material 13. The active material layer has a void ratio of 15 to 45%. Preferably, the metal material 13 is present over the entire area of the particle that extends in the thickness direction of the active material layer. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于改善循环特性的非水电解质二次电池用负极。解决方案：用于非水电解质二次电池的负极10包括含有活性物质的颗粒12a的活性物质层12。颗粒12a的表面的至少一部分涂覆有形成锂化合物的能力差的金属材料13。在涂覆有金属材料13的颗粒12a之间形成空隙。活性物质层的空隙率为15〜45％。优选地，金属材料13存在于在活性材料层的厚度方向上延伸的颗粒的整个区域上。版权所有（C）2008，JPO＆INPIT

12. 发明专利

JP2008034347A Nonaqueous electrolyte secondary battery 审中-公开
标题翻译：非电解电解质二次电池
公开(公告)号：JP2008034347A
公开(公告)日：2008-02-14
申请号：JP2007069922
申请日：2007-03-19
申请人： Mitsui Mining & Smelting Co Ltd , 三井金属鉱業株式会社
发明人： MOTEGI AKIHIRO , NISHIDA TAKUMA , SAKAGUCHI YOSHIKI , YASUDA KIYOTAKA
IPC分类号： H01M4/02 , H01M4/13 , H01M4/134 , H01M4/1395 , H01M4/36 , H01M4/38 , H01M4/62 , H01M10/05
CPC分类号： Y02E60/122
摘要： PROBLEM TO BE SOLVED: To provide a negative electrode for a nonaqueous electrolyte secondary battery in which a path making nonaqueous electrolyte to circulate is necessarily and sufficiently formed in an active material layer and capable of reducing overvoltage in initial charging.
SOLUTION: The nonaqueous electrolyte secondary battery has a positive electrode, a negative electrode and a separator arranged therebetween. The negative electrode includes an active material layer having particles 12a of active material and a conductivity-imparting component 13. The active material layer has the structure in which the conductivity-imparting component 13 contained in the active material layer is gradually micronized by repetitive charging and discharging when charging and discharging of not less than 50% of battery capacity to the battery are performed at least five times and further charging and discharging are repeatedly performed. The particles 12a of the active material may be micronized by the repetitive charging and discharging.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种非水电解质二次电池用负极，其中必须且充分地在活性材料层中形成要循环的非水电解质的路径并且能够减少初始充电中的过电压。解决方案：非水电解质二次电池具有设置在其间的正极，负极和隔板。负极包括具有活性物质的粒子12a和导电性赋予成分13的活性物质层。活性物质层具有这样的结构，其中活性物质层中所含的导电性赋予成分13通过重复充电而逐渐微细化，对电池充电和放电不少于50％的电池进行放电至少五次，并且反复进行进一步的充电和放电。活性物质的颗粒12a可以通过重复的充放电来微粉化。版权所有（C）2008，JPO＆INPIT

13. 发明专利

JP2007123207A Evaluation method of electrode for battery 审中-公开
标题翻译：电池电极评估方法
公开(公告)号：JP2007123207A
公开(公告)日：2007-05-17
申请号：JP2005317664
申请日：2005-10-31
申请人： Mitsui Mining & Smelting Co Ltd , 三井金属鉱業株式会社
发明人： IDE YOSHIHIKO , MATSUSHIMA HIDEAKI , MOTEGI AKIHIRO , HANZAWA NORIKO , SUGIMOTO SHIZUKA , YASUDA KIYOTAKA
IPC分类号： H01M10/48 , H01M4/02 , H01M4/13
CPC分类号： Y02E60/122
摘要： PROBLEM TO BE SOLVED: To provide a method of evaluating electrode for battery capable of easily and simply observing and evaluating change of the state of activator with high space resolving power.
SOLUTION: Surface of electrode is scraped by irradiating ion beam, image of drilled face of the activator is observed by a scanning ion microscope (SIM), and a property of the electrode is evaluated on the basis of contrast of the activator in observed SIM image. Preferably, the electrode is an anode of lithium secondary battery or nickel-hydrogen secondary battery. Especially, it is preferable that the anode, containing activator particles, is that for a lithium secondary battery having activator layers between particles, on which metallic material with low lithium compound forming property is deposited.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决问题的方案：提供一种能够容易且简单地观察和评估具有高空间分辨能力的活化剂的状态变化的电池用电极的评价方法。解决方案：通过照射离子束刮掉电极的表面，通过扫描离子显微镜（SIM）观察活化剂的钻孔面的图像，根据活化剂的对比度来评价电极的性质观察SIM图像。优选地，电极是锂二次电池或镍氢二次电池的阳极。特别地，含有活化剂颗粒的阳极优选为在其上沉积有低锂化合物形成性质的金属材料的颗粒之间具有活化剂层的锂二次电池。版权所有（C）2007，JPO＆INPIT

14. 发明专利

JP2006134891A Negative electrode for nonaqueous electrolyte secondary battery 审中-公开
标题翻译：用于非电解电解质二次电池的负极
公开(公告)号：JP2006134891A
公开(公告)日：2006-05-25
申请号：JP2005348870
申请日：2005-12-02
申请人： Mitsui Mining & Smelting Co Ltd , 三井金属鉱業株式会社
发明人： MATSUSHIMA TOMOYOSHI , HONDA YOSHIHIKO , SAKAGUCHI YOSHIKI , MOMOTAKE MASAHIRO , YASUDA KIYOTAKA
IPC分类号： H01M4/02 , H01M4/13 , H01M4/134 , H01M4/139 , H01M4/36 , H01M4/64 , H01M10/05
CPC分类号： Y02E60/122
摘要： PROBLEM TO BE SOLVED: To provide a negative electrode for a nonaqueous electrolyte secondary battery that can relax stress caused by volumetric change in active material resulting from charge and discharge, and can prevent deformation of the negative electrode.
SOLUTION: A negative electrode 10 for a nonaqueous electrolyte secondary battery has an active material layer 2 containing active material particles 2a. The active material layer 2 has a metallic material 4 spread among the particles by electroplating. The negative electrode 10 has a large number of holes 5 open to at least one side thereof and extending through the thickness of the active material layer 2. The negative electrode 10 further has a pair of current-collecting layers 3a and 3b contacting an electrolyte, and the active material layer 2 is interposed and disposed in between the current collecting layers 3a and 3b.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种非水电解质二次电池用负极，其能够缓和由放电引起的活性物质的体积变化引起的应力，能够防止负极的变形。解决方案：非水电解质二次电池用负极10具有包含活性物质粒子2a的活性物质层2。活性物质层2具有通过电镀在颗粒之间扩散的金属材料4。负极10具有通向其至少一个侧面的大量孔5并延伸穿过活性物质层2的厚度。负极10还具有一对与电解液接触的集电层3a和3b，并且活性物质层2插入并设置在集电层3a和3b之间。版权所有（C）2006，JPO＆NCIPI

15. 发明专利

JP2006012646A Negative electrode for nonaqueous electrolyte secondary battery 审中-公开
标题翻译：用于非电解电解质二次电池的负极
公开(公告)号：JP2006012646A
公开(公告)日：2006-01-12
申请号：JP2004188875
申请日：2004-06-25
申请人： Mitsui Mining & Smelting Co Ltd , 三井金属鉱業株式会社
发明人： MUSHA SHINICHI , YASUDA KIYOTAKA
IPC分类号： H01M4/02 , H01M4/13 , H01M4/134 , H01M4/139 , H01M4/1395 , H01M4/38 , H01M4/66 , H01M10/05 , H01M10/052 , H01M10/0566
CPC分类号： Y02P70/54
摘要： PROBLEM TO BE SOLVED: To provide a negative electrode for a nonaqueous electrolyte secondary battery having high current collection capability, capable of preventing loss of an active material, of ensuring current collection capability of the active material even when charge and discharge are repeated, and of improving a cycle life, and having high energy density.
SOLUTION: This negative electrode 10 comprises: a pair of front and back current-collecting surface layers 3a and 3b; and an active material layer 2 interlaid and disposed between the surface layers. Each of the surface layers 3a and 3b has multiple minute voids 4 opening in its surface and communicating with the active material layer 2. The negative electrode does not have a current-collecting thick-film conductive material. The active material layer 2 is formed by electrolytic plating.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有高电流收集能力的能够防止活性物质损失的非水电解质二次电池的负极，即使在重复充电和放电时也确保活性材料的集电能力，并且提高循环寿命，并具有高能量密度。解决方案：该负极10包括：一对前集流表面层3a和后集流表面层3b; 以及插入并设置在表面层之间的活性物质层2。每个表面层3a和3b具有在其表面上开口并与活性材料层2连通的多个微小空隙4.负极不具有集流厚膜导电材料。活性物质层2由电解电镀形成。版权所有（C）2006，JPO＆NCIPI

16. 发明专利

JP2006004903A Anode for nonaqueous electrolyte secondary battery 有权
标题翻译：非阳极电解质二次电池阳极
公开(公告)号：JP2006004903A
公开(公告)日：2006-01-05
申请号：JP2004319787
申请日：2004-11-02
申请人： Mitsui Mining & Smelting Co Ltd , 三井金属鉱業株式会社
发明人： MUSHA SHINICHI , HONDA YOSHIHIKO , MOMOTAKE MASAHIRO , YASUDA KIYOTAKA
IPC分类号： H01M4/02 , H01M4/134 , H01M4/1395 , H01M4/38 , H01M4/64 , H01M4/66 , H01M4/70
CPC分类号： H01M4/70 , H01M4/13 , H01M4/66 , H01M10/052
摘要： PROBLEM TO BE SOLVED: To prolong a cycle life of a nonaqueous electrolyte secondary battery by heightening a current collecting property of an anode and preventing fall-off of an activator caused by storing/releasing of lithium ion.
SOLUTION: The anode 10 has a pair of current collecting surface layers 4a, 4b at a front surface and back surface respectively, and an activator layer 3 interposed between the surface layers. The surface layers 4a, 4b are composed of elements 6 with a low lithium compound forming function and elements 5 with a high lithium compound forming function, and not any thick conductor film for current collection is formed thereon. The elements 5 with the high lithium compound forming function contained in the surface layers 4a, 4b are turned into fine particles in accordance with charge and discharge, and consequently, cracks are generated on the surface layers, and many fine pores 7, extending in a thickness direction to reach the activator layer 3, through which, electrolyte liquid can permeate, are formed.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：通过提高阳极的集电特性并防止由锂离子的储存/释放引起的活化剂脱落，延长非水电解质二次电池的循环寿命。解决方案：阳极10分别在前表面和背面具有一对电流收集表面层4a，4b，以及置于表面层之间的活化剂层3。表面层4a，4b由具有低锂化合物形成功能的元件6和具有高锂化合物形成功能的元件5组成，并且不形成用于集电的任何厚的导电膜。具有包含在表面层4a，4b中的高锂化合物形成功能的元件5根据充放电而变成细小颗粒，因此在表面层上产生裂纹，并且许多细孔7在厚度方向到达活化剂层3，电解质液体可通过该方向渗透。版权所有（C）2006，JPO＆NCIPI

17. 发明专利

JP2005197096A Negative electrode for nonaqueous electrolytic solution secondary battery, and its manufacturing method 有权
标题翻译：非电解电解质二次电池负极及其制造方法
公开(公告)号：JP2005197096A
公开(公告)日：2005-07-21
申请号：JP2004002488
申请日：2004-01-07
申请人： Mitsui Mining & Smelting Co Ltd , 三井金属鉱業株式会社
发明人： YASUDA KIYOTAKA , MOTEGI AKIHIRO
IPC分类号： H01M4/13 , H01M4/134 , H01M4/139 , H01M4/1395 , H01M4/62 , H01M4/02 , H01M4/04
CPC分类号： Y02P70/54
摘要： PROBLEM TO BE SOLVED: To provide a negative electrode for a nonaqueous electrolytic solution secondary battery in which a cycle characteristic is improved, and in which energy density is high.
SOLUTION: In the negative electrode 1 for the nonaqueous electrolytic solution secondary battery, a conductive covered layer 3 composed of a thin layer of substance of a low forming ability of a lithium compound formed by a thin film forming means is equipped at least at one face of an active material layer 2 in which particles 4 of the active material containing material of high forming ability of the lithium compound are fixed by a binder, and it has no thick film conductor for current collection.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种循环特性提高，能量密度高的非水电解液二次电池用负极。解决方案：在非水电解液二次电池用负极1中，至少配置有由薄膜形成装置形成的锂化合物的低成形能力的薄层物质构成的导电性覆盖层3 在活性物质层2的一个面上，其中含有锂化合物的高成形能力的活性材料的颗粒4通过粘合剂固定，并且不具有用于集电的厚膜导体。版权所有（C）2005，JPO＆NCIPI

18. 发明专利

JP2005129264A Porous metallic foil and its manufacturing method 审中-公开
标题翻译：多孔金属箔及其制造方法
公开(公告)号：JP2005129264A
公开(公告)日：2005-05-19
申请号：JP2003360938
申请日：2003-10-21
申请人： Mitsui Mining & Smelting Co Ltd , 三井金属鉱業株式会社
发明人： MUSHA SHINICHI , HONDA YOSHIHIKO , SAKAGUCHI YOSHIKI , YASUDA KIYOTAKA
IPC分类号： C25D1/04 , C23C30/00 , C25D1/08 , H01M4/13 , H01M4/139 , H01M4/80 , H01M10/05 , H01M4/02 , H01M4/04 , H01M10/40
CPC分类号： Y02E60/122
摘要： PROBLEM TO BE SOLVED: To provide a porous metallic foil in which a battery capacity is enhanced and in which a cycle characteristic is improved in the case it is used as a current collector for an electrode of a nonaqueous electrolytic solution secondary battery.
SOLUTION: The porous metallic foil has numerous micropores of diameters of 0.01 to 200 μm, of which the presence density is 5 to 10,000 pieces/cm
2 and the thickness is 1 to 100 μm. This metallic foil is manufactured by forming a covered body composed of a material different from its constituting material on a carrier foil with the thickness of 0.001 to 1 μm, and electrodepositing the constituting material of the metallic foil by electrolytic plating.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电池容量增加的多孔金属箔，并且在用作非水电解液二次电池的电极的集电体时，其循环特性得到改善。解决方案：多孔金属箔具有许多直径为0.01至200μm的微孔，其存在密度为5至10,000个/ cm 2，SP <2>，并且厚度为1至100μm。该金属箔通过在厚度为0.001〜1μm的载体箔上形成由与构成材料不同的材料构成的覆盖体，通过电解电镀电沉积金属箔的构成材料。版权所有（C）2005，JPO＆NCIPI

19. 发明专利

JP2005063767A Negative electrode material for nonaqueous electrolyte solution secondary battery 有权
标题翻译：非电解电解质二次电池负极电极材料
公开(公告)号：JP2005063767A
公开(公告)日：2005-03-10
申请号：JP2003290726
申请日：2003-08-08
申请人： Mitsui Mining & Smelting Co Ltd , 三井金属鉱業株式会社
发明人： SAKAGUCHI YOSHIKI , MOTEGI AKIHIRO , MUSHA SHINICHI , MATSUSHIMA TOMOYOSHI , HONDA YOSHIHIKO , TAGUCHI TAKEO , YASUDA KIYOTAKA
IPC分类号： H01M4/134 , H01M4/36 , H01M4/38 , H01M10/05 , H01M4/02 , H01M10/40
CPC分类号： Y02E60/122
摘要： PROBLEM TO BE SOLVED: To provide a negative electrode material for a nonaqueous electrolyte solution secondary battery hardly influenced by activator grains which become fine and powdery according to repeated charging and discharging, with an improved charging/discharging cycle property, charging/discharging efficiency, and reduced irreversible capacity.
SOLUTION: The negative electrode material for the nonaqueous electrolyte solution secondary battery contains Si-containing grains with an average grain diameter (D
50 ) of whole grains of 1 to 10 μm. An oxygen density of the Si-containing grain is
摘要翻译：要解决的问题：为了提供几乎不受根据重复充放电而变细并粉状的活化剂颗粒的非水电解液二次电池的负极材料，具有改进的充放电循环特性，充电/放电效率降低，不可逆转能力下降。解决方案：非水电解液二次电池用负极材料含有全部为1〜10μm的平均粒径（D 50 ）的含Si颗粒。含硅晶粒的氧密度小于2.5重量％，最表面的Si密度比氧的密度高1/2以上。在另一种负极材料上，含有Si的晶粒的表面被金属薄膜覆盖。版权所有（C）2005，JPO＆NCIPI

20. 发明专利

JP2004139954A Negative electrode for non-aqueous electrolytic solution secondary battery and its manufacturing method as well as non-aqueous electrolytic solution secondary battery 有权
公开(公告)号：JP2004139954A
公开(公告)日：2004-05-13
申请号：JP2003092419
申请日：2003-03-28
申请人： Mitsui Mining & Smelting Co Ltd , 三井金属鉱業株式会社
发明人： YASUDA KIYOTAKA , SAKAGUCHI YOSHIKI , TANIGUCHI KAZUKO , DOBASHI MAKOTO
IPC分类号： H01M4/66 , H01M4/134 , H01M4/1395 , H01M4/38 , H01M4/46 , H01M10/05 , H01M10/052 , H01M10/0566 , H01M4/02 , H01M4/04 , H01M10/40
CPC分类号： Y02E60/122
摘要： PROBLEM TO BE SOLVED: To provide a negative electrode for non-aqueous electrolytic solution secondary battery in which long life of the electrode can be achieved and energy density per unit volume and unit weight is greatly improved, and its manufacturing method, and a non-aqueous electrolytic solution secondary battery using the negative electrode.
SOLUTION: In the negative electrode for non-aqueous electrolytic solution secondary battery, a first covering layer containing tin, tin alloy, aluminum, or aluminum alloy is formed on the current collector surface and a second covering layer containing a metal that has low formation ability of lithium compound is formed on the top of it. Here, the first covering layer may be further formed on the top of the second covering layer. Furthermore, a covering layer containing copper or the like may be further formed as the uppermost layer. By forming each covering layer by heat treatment, a desired performance can be obtained. Since the heat treatment can be carried out in a very short time, cost merit is great.
COPYRIGHT: (C)2004,JPO

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