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1. 发明申请

US20150037675A1 NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME 有权
标题翻译：用于锂二次电池的负极电极材料及其制造方法
公开(公告)号：US20150037675A1
公开(公告)日：2015-02-05
申请号：US14384907
申请日：2014-03-07
申请人： SANGO Co., Ltd
发明人： Kouichi Izuhara , Makoto Daifuku , Shunsuke Ouchi
IPC分类号： H01M4/134 , H01M10/0525 , B23K26/00 , H01M4/38
CPC分类号： H01M4/134 , B23K26/352 , H01M4/38 , H01M4/523 , H01M4/661 , H01M4/669 , H01M4/70 , H01M4/80 , H01M10/0525 , Y02E60/122
摘要： To provide a high-capacity lithium secondary battery at a low price that attains an increased reversibility of charge and discharge, by using a new negative electrode material different from the existing negative electrode materials, and to provide a lithium secondary battery that can use an existing electrolyte at a small risk of ignition or overheating.There is provided a negative electrode material for a lithium secondary battery, comprising one of iron foil and iron-base alloy foil, wherein the one of iron foil and iron-base alloy foil which has a surface profile having a plurality of concave shaped hollows formed by heat treating with laser beam irradiation and the surface is a surface which contacts with an electrolyte solution for a lithium secondary battery. There is further provided a lithium secondary battery including a negative electrode of the negative electrode material, a positive electrode using a lithium compound as an active material, an electrolyte between the negative electrode and the positive electrode, and a separator dividing the negative electrode and the positive electrode from each other.
摘要翻译：通过使用与现有负极材料不同的新型负极材料，提供一种低价格的高容量锂二次电池，能够实现充放电的可逆性提高，并提供可以使用现有的负极材料的锂二次电池电解质发生点火或过热的风险较小。提供了一种用于锂二次电池的负极材料，其包括铁箔和铁基合金箔之一，其中形成具有多个凹形中空的表面轮廓的铁箔和铁基合金箔之一通过用激光束照射进行热处理，表面是与锂二次电池用电解液接触的面。还提供了一种锂二次电池，其包括负极材料的负极，使用锂化合物作为活性物质的正极，负极和正极之间的电解质，以及分隔负极和正电极彼此。

2. 发明申请

US20150311526A1 NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY CELL AND METHOD FOR MANUFACTURING SAME 有权
标题翻译：用于锂离子二次电池的负电极及其制造方法
公开(公告)号：US20150311526A1
公开(公告)日：2015-10-29
申请号：US14439063
申请日：2013-10-23
申请人： SANGO Co., Ltd. , CITY OF NAGOYA
发明人： Kouichi Izuhara , Makoto Daifuku , Yasushi Miyata
IPC分类号： H01M4/587 , H01M4/04 , H01M10/0525 , H01M4/36 , H01M4/66
CPC分类号： H01M4/587 , B82Y30/00 , B82Y40/00 , C01B32/182 , H01M4/0428 , H01M4/133 , H01M4/1393 , H01M4/661 , H01M10/0525 , Y02P70/54
摘要： A negative electrode for a lithium-ion secondary cell is configured in a novel manner, having a charge-discharge capacity, as determined per unit weight of the carbon used in the electrode, that is markedly higher than the theoretical capacity of graphite, and having a surface that is stabilized against repeated charging and discharging. A negative electrode for a lithium-ion secondary cell in which a carbon layer obtained by building up and growing a graphene sheet is formed on the surface of a substrate comprising an iron-based metal, the carbon layer being formed in a diagonal direction in relation to the substrate, and the carbon layer being used as the surface of the negative electrode. As measured using an argon laser having a wavelength of 532 nm, the Raman spectrum of the graphite that constitutes the carbon nanochip layer has a g/d ratio of 0.30-0.80.
摘要翻译：以新颖的方式配置锂离子二次电池用负极，具有如在电极中使用的碳单位重量所确定的充放电容量，其显着高于石墨的理论容量，并具有一个反复充放电稳定的表面。一种锂离子二次电池用负极，其中，在包含铁基金属的基板的表面上形成有通过生成石墨烯片形成的碳层而形成的碳层，所述碳层形成在相对的对角线方向上并且碳层用作负极的表面。使用波长为532nm的氩激光器测定，构成碳纳米芯片层的石墨的拉曼光谱的g / d比为0.30〜0.80。

3. 发明授权

US09520595B2 Negative electrode for lithium-ion secondary cell and method for manufacturing same 有权
标题翻译：锂离子二次电池用负极及其制造方法
公开(公告)号：US09520595B2
公开(公告)日：2016-12-13
申请号：US14439063
申请日：2013-10-23
申请人： SANGO Co., Ltd. , CITY OF NAGOYA
发明人： Kouichi Izuhara , Makoto Daifuku , Yasushi Miyata
IPC分类号： H01M4/13 , H01M4/587 , H01M4/133 , H01M4/1393 , C01B31/04 , B82Y30/00 , B82Y40/00 , H01M4/04 , H01M4/66 , H01M10/0525 , H01M4/36 , H01M4/02
CPC分类号： H01M4/587 , B82Y30/00 , B82Y40/00 , C01B32/182 , H01M4/0428 , H01M4/133 , H01M4/1393 , H01M4/661 , H01M10/0525 , Y02P70/54
摘要： A negative electrode for a lithium-ion secondary cell is configured in a novel manner, having a charge-discharge capacity, as determined per unit weight of the carbon used in the electrode, that is markedly higher than the theoretical capacity of graphite, and having a surface that is stabilized against repeated charging and discharging. A negative electrode for a lithium-ion secondary cell in which a carbon layer obtained by building up and growing a graphene sheet is formed on the surface of a substrate comprising an iron-based metal, the carbon layer being formed in a diagonal direction in relation to the substrate, and the carbon layer being used as the surface of the negative electrode. As measured using an argon laser having a wavelength of 532 nm, the Raman spectrum of the graphite that constitutes the carbon nanochip layer has a g/d ratio of 0.30-0.80.
摘要翻译：以新颖的方式配置锂离子二次电池用负极，具有如在电极中使用的碳单位重量所确定的充放电容量，其显着高于石墨的理论容量，并具有一个反复充放电稳定的表面。一种锂离子二次电池用负极，其中，在包含铁基金属的基板的表面上形成有通过生成石墨烯片形成的碳层而形成的碳层，所述碳层形成在相对的对角线方向上并且碳层用作负极的表面。使用波长为532nm的氩激光器测定，构成碳纳米芯片层的石墨的拉曼光谱的g / d比为0.30〜0.80。

4. 发明授权

US09614215B2 Negative electrode material for lithium secondary battery and method for manufacturing the same 有权
公开(公告)号：US09614215B2
公开(公告)日：2017-04-04
申请号：US14384907
申请日：2014-03-07
申请人： SANGO Co., Ltd
发明人： Kouichi Izuhara , Makoto Daifuku , Shunsuke Ouchi
IPC分类号： H01M10/04 , H01M4/134 , H01M4/66 , H01M4/70 , B23K26/00 , H01M4/38 , H01M10/0525 , H01M4/52 , H01M4/80
CPC分类号： H01M4/134 , B23K26/352 , H01M4/38 , H01M4/523 , H01M4/661 , H01M4/669 , H01M4/70 , H01M4/80 , H01M10/0525 , Y02E60/122
摘要： A negative electrode material for a lithium secondary battery, having one of iron foil and iron-base alloy foil, wherein the one of iron foil and iron-base alloy foil which has a surface profile having a plurality of concave shaped hollows formed by heat treating with laser beam irradiation and the surface is a surface which contacts with an electrolyte solution for a lithium secondary battery. There is further provided a lithium secondary battery including a negative electrode of the negative electrode material, a positive electrode using a lithium compound as an active material, an electrolyte between the negative electrode and the positive electrode, and a separator dividing the negative electrode and the positive electrode from each other.

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