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    • 1. 发明授权
    • Secondary battery
    • 二次电池
    • US07150941B2
    • 2006-12-19
    • US11084552
    • 2005-03-18
    • Shigeru FujitaHiroyuki AkashiMomoe Adachi
    • Shigeru FujitaHiroyuki AkashiMomoe Adachi
    • H01M4/02H01M4/58H01M10/40
    • H01M10/052H01M4/131H01M4/133H01M4/525H01M4/587H01M10/0525H01M10/0565H01M10/0567H01M10/0568H01M10/0569H01M2300/0042
    • Provided is a secondary battery in which high energy density can be obtained and charging/discharging cycle characteristic can be improved. A positive electrode (13) and a negative electrode (15) are stacked with a separator (16) interposed therebetween, and are enclosed inside an exterior can (11) to which an electrolyte is injected. The negative electrode (15) contains a negative electrode material capable of occluding/releasing lithium in an ionic state. Thereby, lithium metal precipitates in the negative electrode (15) in a state where the open circuit voltage is lower than the overcharge voltage. In other words, lithium is occluded in an ionic state in a negative electrode material capable of occluding/releasing lithium in the beginning of charging, and then lithium metal precipitates on the surface of the negative electrode material thereafter during charging. The amount of precipitation of lithium metal is preferable to be from 0.05 to 3.0 times, both inclusive, the ability of charging capacity of the negative electrode material capable of occluding/releasing lithium. Thereby, a high energy density and an excellent cycle characteristic can be obtained.
    • 提供了能够获得高能量密度并且可以提高充放电循环特性的二次电池。 正极(13)和负极(15)之间分隔有隔板(16)堆叠,并被封入设置有电解液的外部罐(11)内。 负极(15)含有能够在离子状态下吸留或释放锂的负极材料。 由此,在开路电压低于过充电电压的状态下,锂金属在负极(15)中析出析出物。 换句话说,在充电开始时,锂能够在能够吸留/释放锂的负极材料中以离子状态闭塞,然后在充电期间锂金属在负极材料的表面上析出。 锂金属的析出量优选为能够吸留/释放锂的负极材料的充电能力的0.05〜3.0倍。 因此,可以获得高能量密度和优异的循环特性。
    • 2. 发明授权
    • Battery
    • 电池
    • US07906237B2
    • 2011-03-15
    • US10866214
    • 2004-06-10
    • Momoe AdachiShigeru FujitaMasahiro AokiHiroyuki AkashiYoshiaki Naruse
    • Momoe AdachiShigeru FujitaMasahiro AokiHiroyuki AkashiYoshiaki Naruse
    • H01M4/58H01M6/04
    • H01M10/054H01M4/134H01M10/052H01M10/0565H01M10/0568H01M2300/0025
    • A battery is provided which has a high capacity and can improve battery characteristics, such as cycle characteristics. The battery includes a spirally wound electrode body, wherein a cathode and an anode are wound with a separator in between. The anode includes, for example, simple substances, alloys, compounds of metal elements or metalloid elements capable of forming an alloy with Li, the like and combinations thereof. An electrolytic solution wherein an electrolyte salt is dissolved in a solvent is impregnated in the separator. For the electrolyte salt, a light metallic salt having B—O bond or P—O bond, such as difluoro[oxalato-O,O′]lithium borate and tetra fluoro[oxalato-O,O′]lithium phosphate, can be used. By forming a stable coating, decomposition reaction of the solvent can be inhibited, and reaction between the anode and the solvent can be prevented.
    • 提供具有高容量并且可以改善诸如循环特性的电池特性的电池。 电池包括螺旋卷绕的电极体,其中阴极和阳极在其间缠绕有隔膜。 阳极包括例如能够与Li形成合金的简单物质,合金,金属元素的化合物或类金属元素及其组合。 将电解质盐溶解在溶剂中的电解液浸渍在隔膜中。 对于电解质盐,可以使用具有B-O键或P-O键的轻金属盐,例如二氟[草酸-O,O']硼酸锂和四氟[草酸-O,O']磷酸锂 。 通过形成稳定的涂层,能够抑制溶剂的分解反应,能够防止阳极与溶剂的反应。
    • 4. 发明授权
    • Secondary battery
    • 二次电池
    • US06884546B1
    • 2005-04-26
    • US09856431
    • 2000-09-11
    • Shigeru FujitaHiroyuki AkashiMomoe Adachi
    • Shigeru FujitaHiroyuki AkashiMomoe Adachi
    • H01M10/05H01M4/13H01M4/131H01M4/133H01M4/40H01M4/52H01M4/525H01M4/58H01M4/587H01M6/16H01M10/0525H01M10/0565H01M10/0568H01M10/0569H01M10/36H01M4/02H01M10/40
    • H01M10/052H01M4/131H01M4/133H01M4/525H01M4/587H01M10/0525H01M10/0565H01M10/0567H01M10/0568H01M10/0569H01M2300/0042
    • Provided is a secondary battery in which high energy density can be obtained and charging/discharging cycle characteristic can be improved. A positive electrode (13) and a negative electrode (15) are stacked with a separator (16) interposed therebetween, and are enclosed inside an exterior can (11) to which an electrolyte is injected. The negative electrode (15) contains a negative electrode material capable of occluding/releasing lithium in an ionic state. Thereby, lithium metal precipitates in the negative electrode (15) in a state where the open circuit voltage is lower than the overcharge voltage. In other words, lithium is occluded in an ionic state in a negative electrode material capable of occluding/releasing lithium in the beginning of charging, and then lithium metal precipitates on the surface of the negative electrode material thereafter during charging. The amount of precipitation of lithium metal is preferable to be from 0.05 to 3.0 times, both inclusive, the ability of charging capacity of the negative electrode material capable of occluding/releasing lithium. Thereby, a high energy density and an excellent cycle characteristic can be obtained.
    • 提供了能够获得高能量密度并且可以提高充放电循环特性的二次电池。 正极(13)和负极(15)之间分隔有隔板(16)堆叠,并被封入设置有电解液的外部罐(11)内。 负极(15)含有能够在离子状态下吸留或释放锂的负极材料。 由此,在开路电压低于过充电电压的状态下,锂金属在负极(15)中析出析出物。 换句话说,在充电开始时,锂能够在能够吸留/释放锂的负极材料中以离子状态封闭,然后在充电期间锂金属在负极材料的表面上析出。 锂金属的析出量优选为能够吸留/释放锂的负极材料的充电能力的0.05〜3.0倍。 因此,可以获得高能量密度和优异的循环特性。
    • 7. 发明授权
    • Negative electrode material for non-aqueous liquid electrolyte secondary
cell and non-aqueous liquid electrolyte secondary cell employing same
    • 用于非水电解液二次电池的负极材料和使用该非水电解质二次电池的非水电解液二次电池
    • US5834138A
    • 1998-11-10
    • US737285
    • 1995-11-06
    • Shinichiro YamadaHiroyuki AkashiHiroshi ImotoHideto AzumaKenichi KitamuraMomoe AdachiTerue SasakiKohichi Tanaka
    • Shinichiro YamadaHiroyuki AkashiHiroshi ImotoHideto AzumaKenichi KitamuraMomoe AdachiTerue SasakiKohichi Tanaka
    • H01M4/133H01M4/587H01M6/14H01M4/96
    • H01M4/583H01M10/0525
    • A negative electrode material for a secondary cell for a non-aqueous liquid electrolyte for realizing a high charging/discharging capacity and a high discharging efficiency, a method for producing such material and a non-aqueous liquid electrolyte secondary cell employing such material. The negative electrode material contains at least one carbonaceous material selected from the group consisting of coffee beans, tea leaves, cane sugar, corns, fruits, straws of cereals and husks of cereals, a carbonaceous material derived from a plant-origin high molecular material containing a sum total of 0.2 to 20 wt % of metal elements, phosphorus and sulphur calculated as elements or a carbonaceous material having a diffraction peak between 30.degree. and 32.degree. of the 2.theta. diffraction angle in the X-ray (CuK.alpha.) powder diffraction pattern. For producing the negative electrode material, at least one carbonaceous material selected from the group consisting of coffee beans, tea leaves, cane sugar, corns, fruits, straws of cereals and husks of cereals, or crystalline or fibrous cellulose admixed with at least one of metal elements, phosphorus or sulphur, is sintered for carbonization. The negative electrode material is used for a non-aqueous liquid electrolyte secondary cell having a positive electrode formed of a lithium compound oxide and a negative electrode formed of a carbonaceous negative electrode material capable of doping and dedoping lithium ions as an active negative electrode material.
    • PCT No.PCT / JP96 / 00548 Sec。 371日期:1996年11月6日 102(e)日期1996年11月6日PCT 1996年3月6日PCT公布。 第WO96 / 27911号公报 日期1996年12月9日为了实现高充放电能力和高放电效率的非水电解液二次电池用负极材料,这种材料的制造方法以及采用 这样的材料。 负极材料含有至少一种选自咖啡豆,茶叶,蔗糖,玉米,水果,谷物和谷类的谷物的碳质材料,衍生自植物来源的高分子材料的含碳材料含有 在X射线(CuKα)粉末衍射中,作为元素计算的金属元素总计为0.2〜20重量%,作为元素计算的磷和硫,或衍射峰为30度〜32度的2θ衍射角的碳质材料 模式。 为了生产负极材料,选自咖啡豆,茶叶,蔗糖,玉米,水果,麦片和麦片的至少一种碳质材料或与以下中的至少一种混合的结晶或纤维状纤维素 金属元素,磷或硫,被烧结以进行碳化。 负极材料用于具有由锂复合氧化物形成的正极和由能够掺杂和去掺杂锂离子的碳质负极材料形成的负极作为活性负极材料的非水电解质二次电池。
    • 8. 发明授权
    • Negative electrode material for non-aqueous liquid electrolyte secondary
cell, method for producing same and non-aqueous liquid electrolyte
secondary cell employing same
    • 非水电解液二次电池用负极材料及其制造方法以及使用其的非水电解液二次电池
    • US5972536A
    • 1999-10-26
    • US52503
    • 1998-03-31
    • Shinichiro YamadaHiroyuki AkashiHiroshi ImotoHideto AzumaKenichi KitamuraMomoe AdachiTerue SasakiKohichi Tanaka
    • Shinichiro YamadaHiroyuki AkashiHiroshi ImotoHideto AzumaKenichi KitamuraMomoe AdachiTerue SasakiKohichi Tanaka
    • H01M4/133H01M4/587H01M4/60
    • H01M4/583H01M10/0525
    • A negative electrode material for a secondary cell for anon-aqueous liquid electrolyte for realizing a high charging/discharging capacity and a high discharging efficiency, a method for producing such material and a non-aqueous liquid electrolyte secondary cell employing such material. The negative electrode material contains at least one carbonaceous material selected from the group consisting of coffee beans, tea leaves, cane sugar, corns, fruits, straws of cereals and husks of cereals, a carbonaceous material derived from a plant-origin high molecular material containing a sum total of 0.2 to 20 wt % of metal elements, phosphorus and sulphur calculated as elements or a carbonaceous material having a diffraction peak between 30.degree. and 32.degree. of the 2.theta. diffraction angle in the X-ray (CuK.alpha.) powder diffraction pattern. For producing the negative electrode material, at least one carbonaceous material selected from the group consisting of coffee beans, tea leaves, cane sugar, corns, fruits, straws of cereals and husks of cereals, or crystalline or fibrous cellulose admixed with at least one of metal elements, phosphorus or sulphur, is sintered for carbonization. The negative electrode material is used for a non-aqueous liquid electrolyte secondary cell having a positive electrode formed of a lithium compound oxide and a negative electrode formed of a carbonaceous negative electrode material capable of doping and dedoping lithium ions as an active negative electrode material.
    • 用于实现高充电/放电容量和高放电效率的用于非水电解液的二次电池的负极材料,这种材料的制造方法和使用这种材料的非水电解液二次电池。 负极材料含有至少一种选自咖啡豆,茶叶,蔗糖,玉米,水果,谷物和谷类的谷物的碳质材料,衍生自植物来源的高分子材料的含碳材料含有 在X射线(CuKα)粉末衍射中,作为元素计算的金属元素总计为0.2〜20重量%,作为元素计算的磷和硫,或衍射峰为30度〜32度的2θ衍射角的碳质材料 模式。 为了生产负极材料,选自咖啡豆,茶叶,蔗糖,玉米,水果,麦片和麦片的至少一种碳质材料或与以下中的至少一种混合的结晶或纤维状纤维素 金属元素,磷或硫,被烧结以进行碳化。 负极材料用于具有由锂复合氧化物形成的正极和由能够掺杂和去掺杂锂离子的碳质负极材料形成的负极作为活性负极材料的非水电解质二次电池。
    • 9. 发明授权
    • Battery
    • 电池
    • US07682752B2
    • 2010-03-23
    • US11470686
    • 2006-09-07
    • Tomoyuki NakamuraTakahiro EndoHiroyuki Akashi
    • Tomoyuki NakamuraTakahiro EndoHiroyuki Akashi
    • H01M6/18
    • H01M10/0565H01M2/16H01M4/66H01M6/10H01M10/0436H01M2300/0082
    • A battery in which the relative positions of a cathode, an anode and a separator are maintained with high precision is provided. A cathode and an anode face each other with a polymer electrolyte including a polymer and a separator in between. In each of the cathode and the anode, an active material layer is disposed on a current collector. Exposed regions where the active material layers are not disposed on the current collectors and the separator are adhered to each other with the polymer electrolyte in between. Thereby, even under a high-temperature environment, the heat shrinkage of the separator can be prevented, and heat generation due to the generation of a short-circuit current can be prevented.
    • 提供了以高精度保持阴极,阳极和隔膜的相对位置的电池。 阴极和阳极在其间具有包括聚合物和隔膜的聚合物电解质彼此面对。 在阴极和阳极的每个中,活性物质层设置在集电体上。 活性物质层未设置在集电体上的曝光区域和隔板之间的聚合物电解质彼此粘合。 由此,即使在高温环境下也能够防止隔板的热收缩,能够防止由于短路电流的产生而发热。