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1.发明申请METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR ENERGY STORAGE DEVICE AND ENERGY STORAGE DEVICE 有权用于制造能量储存装置和能量储存装置的正极活性物质的方法公开(公告)号：US20120088156A1
公开(公告)日：2012-04-12
申请号：US13248700
申请日：2011-09-29
CPC分类号： H01M4/1397 , H01M4/0433 , H01M4/0471 , H01M4/136 , H01M4/366 , H01M4/38 , H01M4/5825 , H01M4/625 , H01M2004/028 , Y02E60/122 , Y02P70/54
摘要： An energy storage device having high capacity per weight or volume and a positive electrode active material for the energy storage device are manufactured. A surface of a main material included in the positive electrode active material for the energy storage device is coated with two-dimensional carbon. The main material included in the positive electrode active material is coated with a highly conductive material which has a structure expanding two-dimensionally and whose thickness is ignorable, whereby the amount of carbon coating can be reduced and an energy storage device having capacity close to theoretical capacity can be obtained even when a conduction auxiliary agent is not used or the amount of the conduction auxiliary agent is extremely small. Accordingly, the amount of carbon coating in a positive electrode and the volume of the conduction auxiliary agent can be reduced; consequently, the volume of the positive electrode can be reduced.
摘要翻译： 制造具有高容量/重量或体积的储能装置和用于储能装置的正极活性物质。 包含在能量储存装置的正极活性物质中的主要材料的表面涂覆有二维碳。 包含在正极活性物质中的主要材料涂覆有具有二维膨胀并且其厚度可忽略的结构的高导电性材料，由此可以减少碳涂层的量，并且具有接近理论的容量的储能装置 即使不使用导电助剂或导电助剂的量极少，也可以获得容量。 因此，可以减少正极中的碳涂覆量和导电助剂的体积; 因此，可以减小正极的体积。
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公开(公告)号：US20110229764A1
公开(公告)日：2011-09-22
申请号：US13044155
申请日：2011-03-09
CPC分类号： H01M4/136 , H01M4/0471 , H01M4/1397 , H01M4/366 , H01M4/5825 , H01M4/625 , H01M10/052 , H01M2004/021 , H01M2004/028
摘要： A power storage device comprising a positive electrode which includes in a positive electrode active material layer, lithium iron phosphate particles whose surface is supported by a carbon material and whose half width of the X-ray diffraction peak is less than or equal to 0.17°, or greater than or equal to 0.13° and less than or equal to 0.165′ or whose particle size is greater than or equal to 20 nm and less than 50 nm or greater than or equal to 30 nm and less than 40 nm; or a method for manufacturing a power storage device comprising the steps of mixing the lithium iron phosphate particles, a conduction auxiliary agent, and a binder so as to be a paste, and applying the paste on a current collector, thereby manufacturing a positive electrode.
摘要翻译： 一种蓄电装置，其特征在于，包括正极，该正极包括在正极活性物质层中，表面被碳材料负载并且X射线衍射峰的半宽度小于或等于0.17°的磷酸铁锂颗粒， 或大于或等于0.13°且小于或等于0.165'或其粒度大于或等于20nm且小于50nm或大于或等于30nm且小于40nm; 或蓄电装置的制造方法，其特征在于，包括以下步骤：将磷酸铁锂颗粒，导电助剂和粘合剂混合成糊料，并将该糊剂涂布在集电体上，从而制造正极。
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公开(公告)号：US20110269023A1
公开(公告)日：2011-11-03
申请号：US13093067
申请日：2011-04-25
IPC分类号： H01M4/36
CPC分类号： H01M4/136 , H01M4/366 , H01M4/5825 , H01M10/0525
摘要： A power storage device including a positive electrode having a positive electrode active material and a positive electrode current collector; and a negative electrode which faces the positive electrode with an electrolyte provided between the negative electrode and the positive electrode is provided. The positive electrode active material includes a first region which includes a phosphate compound containing lithium and nickel; and a second region which covers the first region and includes a compound containing lithium and one or more of iron, manganese, and cobalt, but not containing nickel. Since the entire superficial portion of a particle of the positive electrode active material does not contain nickel, nickel is not in contact with an electrolyte solution; thus, generation of a catalyst effect of nickel can be suppressed, and a high discharge potential of nickel can be utilized.
摘要翻译： 一种蓄电装置，其具有正极，具有正极活性物质和正极集电体; 并且提供了在负极和正极之间设置有电解质的面对正极的负极。 正极活性物质包括含有锂和镍的磷酸盐化合物的第一区域; 以及第二区域，其覆盖第一区域并且包括含有锂和一种或多种铁，锰和钴但不包含镍的化合物。 由于正极活性物质的粒子的整个表面部分不含镍，所以镍不与电解质溶液接触; 因此，可以抑制镍的催化剂效果的产生，并且可以利用镍的高放电电位。
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4.发明授权公开(公告)号：US09490474B2
公开(公告)日：2016-11-08
申请号：US13248700
申请日：2011-09-29
CPC分类号： H01M4/1397 , H01M4/0433 , H01M4/0471 , H01M4/136 , H01M4/366 , H01M4/38 , H01M4/5825 , H01M4/625 , H01M2004/028 , Y02E60/122 , Y02P70/54
摘要： An energy storage device having high capacity per weight or volume and a positive electrode active material for the energy storage device are manufactured. A surface of a main material included in the positive electrode active material for the energy storage device is coated with two-dimensional carbon. The main material included in the positive electrode active material is coated with a highly conductive material which has a structure expanding two-dimensionally and whose thickness is ignorable, whereby the amount of carbon coating can be reduced and an energy storage device having capacity close to theoretical capacity can be obtained even when a conduction auxiliary agent is not used or the amount of the conduction auxiliary agent is extremely small. Accordingly, the amount of carbon coating in a positive electrode and the volume of the conduction auxiliary agent can be reduced; consequently, the volume of the positive electrode can be reduced.
摘要翻译： 制造具有高容量/重量或体积的储能装置和用于储能装置的正极活性物质。 包含在能量储存装置的正极活性物质中的主要材料的表面涂覆有二维碳。 包含在正极活性物质中的主要材料涂覆有具有二维膨胀并且其厚度可忽略的结构的高导电性材料，由此可以减少碳涂层的量，并且具有接近理论的容量的储能装置 即使不使用导电助剂或导电助剂的量极少，也可以获得容量。 因此，可以减少正极中的碳涂覆量和导电助剂的体积; 因此，可以减小正极的体积。
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5.发明授权公开(公告)号：US08669009B2
公开(公告)日：2014-03-11
申请号：US13160660
申请日：2011-06-15
申请人： Masaki Yamakaji
发明人： Masaki Yamakaji
IPC分类号： H01M4/13
CPC分类号： H01M4/5825 , H01M10/0525
摘要： As a positive electrode active material, a material which is represented by the general formula Li(2-x)M1yM2zSiO4 and satisfies the conditions (I) to (IV) is used: (I) x is a value which changes due to insertion and extraction of a lithium ion during charging and discharging, and satisfies 0≦x
摘要翻译： 作为正极活性物质，使用由通式Li（2-x）M1yM2zSiO4表示且满足条件（I）〜（IV）的材料：（I）x是由于插入而变化的值， 在充放电期间提取锂离子，满足0 @ x <2; （II）M1是选自铁（Fe），镍（Ni），锰（Mn）和钴（Co）中的一种或多种过渡金属原子; （III）M2是钛（Ti），钪（Sc）或镁（Mg）的金属原子; 和（IV）满足公式y + z = 1,0
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6.发明申请METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR POWER STORAGE DEVICE 有权用于制造蓄电装置的正极活性物质的方法公开(公告)号：US20120091405A1
公开(公告)日：2012-04-19
申请号：US13273262
申请日：2011-10-14
申请人： Masaki Yamakaji , Koji Nara , Mako Motoyoshi
发明人： Masaki Yamakaji , Koji Nara , Mako Motoyoshi
IPC分类号： H01B1/12
CPC分类号： B29B9/12 , B29B9/16 , B29K2105/251 , B29L2031/772 , C01B33/20 , C01B33/32 , H01M4/0471 , H01M4/136 , H01M4/366 , H01M4/5825 , H01M10/052 , Y02E60/122 , Y02P70/54 , Y02T10/7011 , Y10T428/2991
摘要： In a manufacturing process of a positive electrode active material for a power storage device, which includes a lithium silicate compound represented by a general formula Li2MSiO4, heat treatment is performed at a high temperature on a mixture material, grinding treatment is performed, a carbon-based material is added, and then heat treatment is performed again. Therefore, the reactivity between the substances contained in the mixture material is enhanced, favorable crystallinity can be obtained, and further microparticulation of the grain size of crystal which is grown larger by the high temperature treatment and crystallinity recovery are achieved; and at the same time, carbon can be supported on the surfaces of particles of the crystallized mixture material. Accordingly, a positive electrode active material for a power storage device, in which electron conductivity is improved, can be manufactured.
摘要翻译： 在包含由通式Li 2 MSiO 4表示的硅酸锂化合物的蓄电装置用正极活性物质的制造方法中，在混合材料的高温下进行热处理，进行研磨处理， 添加基材，再次进行热处理。 因此，混合材料中所含的物质之间的反应性增强，可以获得良好的结晶度，并且通过高温处理和结晶回收实现了生长较大的晶体的晶粒尺寸的进一步的微粒化; 并且同时可以在结晶的混合物材料的颗粒的表面上负载碳。 因此，可以制造其中电子传导性提高的蓄电装置用正极活性物质。
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公开(公告)号：US20120003529A1
公开(公告)日：2012-01-05
申请号：US13162640
申请日：2011-06-17
申请人： Masaki YAMAKAJI
发明人： Masaki YAMAKAJI
CPC分类号： H01M4/525 , H01M4/0402 , H01M4/0471 , H01M4/131 , H01M4/366 , H01M4/485 , H01M4/505 , H01M4/5825 , H01M4/625 , H01M10/0525 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： An object is to provide an electrode material with high electrical conductivity and a power storage device using the electrode material. An object is to provide an electrode material with high capacity and a power storage device using the electrode material. Provided is a particulate electrode material including a core containing a compound represented by a general formula Li2MSiO4 (in the formula, M represents at least one kind of an element selected from Fe, Co, Mn, and Ni) as a main component, and a covering layer containing a compound represented by a general formula LiMPO4 as a main component and covering the core. Further, a solid solution material is provided between the core and the covering layer. With such a structure, an electrode material with high electrical conductivity can be obtained. Further, with such an electrode material, a power storage device with high discharge capacity can be obtained.
摘要翻译： 目的在于提供具有高导电性的电极材料和使用该电极材料的功率存储装置。 目的是提供一种具有高容量的电极材料和使用该电极材料的蓄电装置。 本发明提供一种颗粒电极材料，其包含含有通式Li 2 MSiO 4（式中M表示选自Fe，Co，Mn和Ni中的至少一种元素）作为主要成分的化合物的核， 包含由通式LiMPO4表示的化合物作为主要成分并覆盖该芯的覆盖层。 此外，在芯和覆盖层之间提供固溶体材料。 通过这样的结构，可以获得具有高导电性的电极材料。 此外，通过这样的电极材料，可以获得具有高放电容量的蓄电装置。
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8.发明申请ALKALI METAL SILICATE, ALKALI TRANSITION METAL SILICATE, AND METHOD FOR SYNTHESIZING SILICATE 有权碱金属硅酸盐，碱金属过渡金属硅酸盐和合成硅酸盐的方法公开(公告)号：US20130059208A1
公开(公告)日：2013-03-07
申请号：US13595000
申请日：2012-08-27
CPC分类号： H01M4/5825 , C01B33/32 , C01P2002/72 , C01P2004/03 , C01P2006/12
摘要： A method for synthesizing alkali metal silicate which can be easily microparticulated, a method for synthesizing, with the use of the alkali metal silicate, alkali transition metal silicate, and alkali metal silicate and alkali transition metal silicate which are synthesized by the synthesis methods are disclosed. The alkali metal silicate is synthesized by the following steps: forming a basic solution including an alkali metal salt; mixing the basic solution including the alkali metal salt with silicon particles to form a basic solution including the alkali metal silicate; and adding the basic solution including the alkali metal silicate to a poor solvent for the alkali metal silicate to precipitate the alkali metal silicate. Further, the alkali metal silicate is mixed with a microparticulated compound including a transition metal to form a mixture, and the mixture is subjected to heat treatment, whereby the alkali transition metal silicate is generated.
摘要翻译： 公开了一种可以容易地微粒化的碱金属硅酸盐的合成方法，使用通过合成方法合成的碱金属硅酸盐，碱金属过渡金属硅酸盐，碱金属硅酸盐和碱金属过渡金属硅酸盐进行合成的方法 。 通过以下步骤合成碱金属硅酸盐：形成碱金属盐的碱溶液; 将包括碱金属盐的碱性溶液与硅颗粒混合以形成包含碱金属硅酸盐的碱性溶液; 并将碱金属硅酸盐的碱性溶液加入到碱金属硅酸盐的不良溶剂中以沉淀碱金属硅酸盐。 此外，将碱金属硅酸盐与包含过渡金属的微粒化合物混合以形成混合物，并对该混合物进行热处理，从而产生碱金属过渡金属硅酸盐。
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9.发明申请公开(公告)号：US20120003538A1
公开(公告)日：2012-01-05
申请号：US13160660
申请日：2011-06-15
申请人： Masaki YAMAKAJI
发明人： Masaki YAMAKAJI
CPC分类号： H01M4/5825 , H01M10/0525
摘要： As a positive electrode active material, a material which is represented by the general formula Li(2-x)M1yM2zSiO4 and satisfies the conditions (I) to (IV) is used:(I) x is a value which changes due to insertion and extraction of a lithium ion during charging and discharging, and satisfies 0≦x
摘要翻译： 作为正极活性物质，使用由通式Li（2-x）M1yM2zSiO4表示且满足条件（I）〜（IV）的材料：（I）x是由于插入而变化的值， 充电和放电期间提取锂离子，满足0＆nlE; x <2; （II）M1是选自铁（Fe），镍（Ni），锰（Mn）和钴（Co）中的一种或多种过渡金属原子; （III）M2是钛（Ti），钪（Sc）或镁（Mg）的金属原子; 和（IV）满足公式y + z = 1,0
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公开(公告)号：US20110236752A1
公开(公告)日：2011-09-29
申请号：US13052746
申请日：2011-03-21
IPC分类号： H01M4/58 , H01M4/36 , H01M10/056 , H01B1/02
CPC分类号： H01M4/5825 , H01M4/366 , H01M4/625
摘要： A power storage device includes a positive electrode including a positive electrode current collector and a positive electrode active material having an olivine structure which is represented by a structural formula LiFexMe1-xPO4 (Me=Mn, Ni, or Co) (x is greater than 0 and less than 1) over the positive electrode current collector, or a power storage device includes a positive electrode including a positive electrode current collector and a positive electrode active material, and a negative electrode which faces the positive electrode through an electrolyte, where discharging capacitance is greater than or equal to 150 mAh/g and energy density per unit weight is higher than or equal to 500 mWh/g.
摘要翻译： 蓄电装置包括具有正极集电体的正极和具有由结构式LiFexMe1-xPO4（Me = Mn，Ni或Co）表示的橄榄石结构的正极活性物质（x大于0） 并且小于1），或者蓄电装置包括具有正极集电体和正极活性物质的正极和通过电解质与正极对置的负极，其中放电电容 大于或等于150mAh / g，每单位重量的能量密度高于或等于500mWh / g。
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