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公开(公告)号：US09023530B2
公开(公告)日：2015-05-05
申请号：US11371286
申请日：2006-03-09
IPC分类号： H01M4/13 , H01M4/58 , H01M4/00 , H01M4/131 , H01M4/1391 , H01M4/485 , H01M4/525 , H01M10/0525 , H01M10/0587 , H01M4/02
CPC分类号： H01M4/131 , H01M4/1391 , H01M4/485 , H01M4/525 , H01M10/0525 , H01M10/0587 , H01M2004/021 , H01M2004/028 , Y02E60/122
摘要： To improve high temperature storage characteristic of a non-aqueous electrolyte secondary battery suitable for high input/output application, the structure of a positive electrode active material is optimized. The non-aqueous electrolyte secondary battery includes a positive electrode; a negative electrode; a separator interposed between the positive and negative electrodes; and a non-aqueous electrolyte. The positive electrode active material includes secondary particles, each formed of an aggregate of primary particles. A value (VPr) defined by the formula: VPr=(1−C/D)/(A2×B3) is not less than 0.0005 and not greater than 0.04, where an average particle size of the primary particles is A μm, an average particle size of the positive electrode active material is B μm, a tap density of the positive electrode active material is C g/ml, and a true specific gravity of the positive electrode active material is D g/ml.
摘要翻译： 为了提高适用于高输入/输出应用的非水电解质二次电池的高温储存特性，优化了正极活性物质的结构。 非水电解质二次电池包括正极; 负极; 插入在正极和负极之间的隔膜; 和非水电解质。 正极活性物质包括由一次粒子的聚集体形成的二次粒子。 由VPr =（1-C / D）/（A2×B3）定义的值（VPr）不小于0.0005且不大于0.04，其中初级粒子的平均粒径为Aμm， 正极活性物质的平均粒径为Bμm，正极活性物质的振实密度为C g / ml，正极活性物质的真比例为D g / ml。
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公开(公告)号：US20060204849A1
公开(公告)日：2006-09-14
申请号：US11371286
申请日：2006-03-09
CPC分类号： H01M4/131 , H01M4/1391 , H01M4/485 , H01M4/525 , H01M10/0525 , H01M10/0587 , H01M2004/021 , H01M2004/028 , Y02E60/122
摘要： To improve high temperature storage characteristic of a non-aqueous electrolyte secondary battery suitable for high input/output application, the structure of a positive electrode active material is optimized. The non-aqueous electrolyte secondary battery includes a positive electrode; a negative electrode; a separator interposed between the positive and negative electrodes; and a non-aqueous electrolyte. The positive electrode active material includes secondary particles, each formed of an aggregate of primary particles. A value (VPr) defined by the formula: VPr=(1−C/D)/(A2×B3) is not less than 0.0005 and not greater than 0.04, where an average particle size of the primary particles is A μm, an average particle size of the positive electrode active material is B μm, a tap density of the positive electrode active material is C g/ml, and a true specific gravity of the positive electrode active material is D g/ml.
摘要翻译： 为了提高适用于高输入/输出应用的非水电解质二次电池的高温储存特性，优化了正极活性物质的结构。 非水电解质二次电池包括正极; 负极; 插入在正极和负极之间的隔膜; 和非水电解质。 正极活性物质包括由一次粒子的聚集体形成的二次粒子。 由以下公式定义的值（V Pr Pr Pr> Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 3）不小于0.0005且不大于0.04，其中一次颗粒的平均粒径为A mum，正极活性物质的平均粒径为B mum，振实密度为正 电极活性物质为C g / ml，正极活性物质的真比重为D g / ml。
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3.发明授权公开(公告)号：US07410511B2
公开(公告)日：2008-08-12
申请号：US10636642
申请日：2003-08-08
CPC分类号： C01G53/42 , C01P2002/20 , C01P2002/52 , C01P2004/03 , C01P2004/32 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/40 , H01M4/0471 , H01M4/1391 , H01M4/485 , H01M4/525 , Y10T29/49108
摘要： A positive electrode active material, which gives a non-aqueous electrolyte secondary battery capable of high input/output where resistance due to a battery reaction in a low temperature environment is suppressed, is produced by a method comprising: (a)providing a nickel hydroxide which is represented by the general formula Ni1−(x+y)CoxMy(OH)2, (b)heating the nickel hydroxide at a temperature not lower than 600° C. and not higher than 1000° C. to produce a nickel oxide which is represented by the general formula Ni1−(x+y)CoxMyO; and (c)mixing the nickel oxide and a lithium compound to obtain a mixture and heating the mixture at a temperature not lower than 700° C. and not higher than 850° C. to produce a lithium-containing composite oxide which is represented by the general formula LiNi1−(x+y)CoxMyO2, where 0.1≦x≦0.35 and 0.03≦y≦0.2 are satisfied and M is at least one selected from the group consisting of Al, Ti and Sn.
摘要翻译： 通过以下方法制造正极活性物质，该正极活性物质通过以下方法制备能够抑制由于电池反应在低温环境中引起的电阻而具有高输入/输出能力的非水电解质二次电池：（a）提供氢氧化镍 其由下列通式表示：Ni 1 - （x + y）2（x）y（x）y（OH）2＆lt; >，（b）在不低于600℃且不高于1000℃的温度下加热氢氧化镍以产生由通式Ni 1-（x + y）表示的氧化镍， Co x;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 和（c）将氧化镍和锂化合物混合以获得混合物，并在不低于700℃且不高于850℃的温度下加热该混合物，以制备由下式表示的含锂复合氧化物： 通式为LiNi 1 - （x + y）2 O x O 2 O 2，其中0.1 <= x <= 0.35和0.03 <= y <= 0.2，M为选自Al，Ti和Sn中的至少一种。
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4.发明授权公开(公告)号：US07666551B2
公开(公告)日：2010-02-23
申请号：US11097280
申请日：2005-04-04
申请人： Yasutaka Kogetsu , Takaya Saito , Yoshiyuki Ozaki
发明人： Yasutaka Kogetsu , Takaya Saito , Yoshiyuki Ozaki
CPC分类号： H01M4/049 , H01M4/131 , H01M4/133 , H01M4/366 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M10/0525 , H01M2004/028 , Y02T10/7011
摘要： A positive electrode active material for a non-aqueous electrolyte secondary battery of this invention includes: a lithium nickel composite oxide containing lithium, nickel, and at least one metal element other than lithium and nickel; and a layer containing lithium carbonate, aluminum hydroxide, and aluminum oxide, the layer being carried on the surface of the lithium nickel composite oxide. The lithium nickel composite oxide is composed such that the ratio of the nickel to the total of the nickel and the at least one metal element is 30 mol % or more. The layer is composed such that the amount of the lithium carbonate is 0.5 to 5 mol per 100 mol of the lithium nickel composite oxide. The total of aluminum atoms contained in the aluminum hydroxide and the aluminum oxide is 0.5 to 5 mol per 100 mol of the lithium nickel composite oxide.
摘要翻译： 本发明的非水电解质二次电池用正极活性物质，其特征在于，含有锂，镍，锂和镍以外的至少一种金属元素的锂镍复合氧化物， 和含有碳酸锂，氢氧化铝和氧化铝的层，该层承载在锂镍复合氧化物的表面上。 锂镍复合氧化物的组成使得镍与镍和至少一种金属元素的总量的比例为30摩尔％以上。 该层的组成使得碳酸锂的量相对于每100摩尔锂镍复合氧化物为0.5〜5摩尔。 铝氢氧化物和氧化铝中所含的铝原子总量相对于每100摩尔锂镍复合氧化物为0.5〜5摩尔。
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5.发明申请公开(公告)号：US20050227147A1
公开(公告)日：2005-10-13
申请号：US11097280
申请日：2005-04-04
申请人： Yasutaka Kogetsu , Takaya Saito , Yoshiyuki Ozaki
发明人： Yasutaka Kogetsu , Takaya Saito , Yoshiyuki Ozaki
IPC分类号： C01G53/00 , C25B1/00 , H01M4/04 , H01M4/131 , H01M4/133 , H01M4/36 , H01M4/38 , H01M4/40 , H01M4/48 , H01M4/485 , H01M4/50 , H01M4/505 , H01M4/52 , H01M4/525 , H01M4/58 , H01M4/62 , H01M10/0525 , H01M10/36
CPC分类号： H01M4/049 , H01M4/131 , H01M4/133 , H01M4/366 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M10/0525 , H01M2004/028 , Y02T10/7011
摘要： A positive electrode active material for a non-aqueous electrolyte secondary battery of this invention includes: a lithium nickel composite oxide containing lithium, nickel, and at least one metal element other than lithium and nickel; and a layer containing lithium carbonate, aluminum hydroxide, and aluminum oxide, the layer being carried on the surface of the lithium nickel composite oxide. The lithium nickel composite oxide is composed such that the ratio of the nickel to the total of the nickel and the at least one metal element is 30 mol % or more. The layer is composed such that the amount of the lithium carbonate is 0.5 to 5 mol per 100 mol of the lithium nickel composite oxide. The total of aluminum atoms contained in the aluminum hydroxide and the aluminum oxide is 0.5 to 5 mol per 100 mol of the lithium nickel composite oxide.
摘要翻译： 本发明的非水电解质二次电池用正极活性物质，其特征在于，含有锂，镍，锂和镍以外的至少一种金属元素的锂镍复合氧化物， 和含有碳酸锂，氢氧化铝和氧化铝的层，该层承载在锂镍复合氧化物的表面上。 锂镍复合氧化物的组成使得镍与镍和至少一种金属元素的总量的比例为30摩尔％以上。 该层的组成使得碳酸锂的量相对于每100摩尔锂镍复合氧化物为0.5〜5摩尔。 铝氢氧化物和氧化铝中所含的铝原子总量相对于每100摩尔锂镍复合氧化物为0.5〜5摩尔。
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6.发明授权公开(公告)号：US08318359B2
公开(公告)日：2012-11-27
申请号：US11886848
申请日：2006-11-07
申请人： Keiichi Takahashi , Masaya Ugaji , Yasutaka Kogetsu , Shinji Mino , Nobuaki Nagao , Masaki Hasegawa
发明人： Keiichi Takahashi , Masaya Ugaji , Yasutaka Kogetsu , Shinji Mino , Nobuaki Nagao , Masaki Hasegawa
CPC分类号： H01M4/13 , H01M4/131 , H01M4/139 , H01M4/1391 , H01M4/505 , H01M4/525 , H01M10/052 , Y02T10/7011 , Y10T29/49108 , Y10T29/49115
摘要： An electrode for a lithium secondary battery including a sheet-like current collector and an active material layer carried on the current collector. The active material layer is capable of absorbing and desorbing lithium, and the active material layer includes a plurality of columnar particles having at least one bend. An angle θ1 formed by a growth direction of the columnar particles from a bottom to a first bend of the columnar particles, and a direction normal to the current collector is preferably 10° or more and less than 90°. When θn+1 is an angle formed by a growth direction of the columnar particles from an n-th bend counted from a bottom of the columnar particles to an (n+1)-th bend, and the direction normal to the current collector, and n is an integer of 1 or more, θn+1 is preferably 0° or more and less than 90°.
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公开(公告)号：US08080334B2
公开(公告)日：2011-12-20
申请号：US11363945
申请日：2006-03-01
申请人： Yasutaka Kogetsu , Masaya Ugaji , Keiichi Takahashi , Shinji Mino , Nobuaki Nagao , Satoshi Shibutani , Kazuyoshi Honda
发明人： Yasutaka Kogetsu , Masaya Ugaji , Keiichi Takahashi , Shinji Mino , Nobuaki Nagao , Satoshi Shibutani , Kazuyoshi Honda
CPC分类号： H01M4/134 , H01M4/0423 , H01M4/0426 , H01M4/1395 , H01M4/38 , H01M2004/021 , Y02E60/122 , Y02P70/54 , Y10T29/49115
摘要： In order to enhance charge and discharge efficiency and to improve cycle characteristics by increasing a facing area between a positive electrode active material and a negative electrode active material, in a negative electrode for lithium secondary battery having a current collector and an active material layer carried on the current collector, the active material layer includes a plurality of columnar particles. The columnar particles include an element of silicon, and are tilted toward the normal direction of the current collector. Angle θ formed between the columnar particles and the normal direction of the current collector is preferably 10°≦θ
摘要翻译： 为了提高充放电效率，通过增加正极活性物质和负极活性物质之间的面积来提高循环特性，在具有集电体和活性物质层的锂二次电池用负极中， 集电体，活性物质层包括多个柱状颗粒。 柱状颗粒包括硅元素，并且朝向集电体的法线方向倾斜。 角度与角度 柱状颗粒与集电体的法线方向之间形成的膜优选为10°＆lt; 90°。
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8.发明授权Method of producing silicon oxide, negative electrode active material for lithium ion secondary battery and lithium ion secondary battery using the same 有权锂二次电池的制造方法，锂离子二次电池用负极活性物质及使用其的锂离子二次电池公开(公告)号：US07955581B2
公开(公告)日：2011-06-07
申请号：US11580117
申请日：2006-10-13
申请人： Yasutaka Kogetsu , Sumihito Ishida
发明人： Yasutaka Kogetsu , Sumihito Ishida
IPC分类号： C01B15/14 , C01B33/20 , C23C4/04 , C23C8/00 , C23C14/28 , C23C14/10 , C23C16/00 , H05H1/24 , H05B3/00 , B65B33/00 , C09D5/20 , B05D5/12
CPC分类号： C23C14/10 , C01B33/113 , C23C14/0005 , H01M4/02 , H01M4/131 , H01M4/485 , H01M4/625 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： A method for producing a silicon oxide including the steps of supplying silicon atoms onto a substrate through an oxygen atmosphere to form a silicon oxide layer on the substrate, and separating the silicon oxide layer from the substrate and pulverizing the separated silicon oxide layer to obtain silicon oxide containing silicon and oxygen in predetermined proportions, and a negative electrode active material obtained by the production method.
摘要翻译： 一种生产氧化硅的方法，包括以下步骤：通过氧气氛将硅原子供应到衬底上以在衬底上形成氧化硅层，并将氧化硅层与衬底分离并粉碎分离的氧化硅层以获得硅 含有规定比例的硅和氧的氧化物，以及通过该制造方法得到的负极活性物质。
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9.发明授权公开(公告)号：US07638239B2
公开(公告)日：2009-12-29
申请号：US11289681
申请日：2005-11-30
IPC分类号： H01M4/58
CPC分类号： H01M4/134 , H01M4/38 , H01M4/386 , H01M4/661 , H01M4/667 , H01M10/052 , H01M2004/027
摘要： In a negative electrode for a non-aqueous electrolyte secondary battery including an active material portion capable of electrochemically absorbing and desorbing Li, a current collector carrying the active material portion, and a buffer interposed between the active material portion and the current collector, the active material portion includes at least one selected from the group consisting of a Si simple substance, a Si alloy, and a Si compound, the current collector includes Cu, and the buffer has a first layer contacting the current collector and including a group A element which is at least one selected from the group A consisting of Sn, Al, and In, and a second layer contacting the active material portion and including a group B element which is at least one selected from the group B consisting of transition metal elements other than Cu.
摘要翻译： 在含有能够电化学吸收和解吸Li的活性物质部分的非水电解质二次电池用负极中，携带有活性物质部分的集电体和介于活性物质部分和集电体之间的缓冲剂，活性物质 材料部分包括选自由Si单质，Si合金和Si化合物组成的组中的至少一种，集电体包括Cu，并且缓冲层具有与集电体接触的第一层，并且包括A族元素， 是选自由Sn，Al和In构成的组A中的至少一种，第二层与活性物质部分接触，并且包含B族元素，该B族元素是选自除B以外的过渡金属元素的组B中的至少一种 铜。
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公开(公告)号：US20090280407A1
公开(公告)日：2009-11-12
申请号：US12306854
申请日：2007-12-26
申请人： Shuji Ito , Yasutaka Kogetsu , Kazuya Iwamoto , Kazuyoshi Honda , Taisuke Yamamoto , Yasuhiro Ueyama , Keisuke Ohara , Hitoshi Katayama
发明人： Shuji Ito , Yasutaka Kogetsu , Kazuya Iwamoto , Kazuyoshi Honda , Taisuke Yamamoto , Yasuhiro Ueyama , Keisuke Ohara , Hitoshi Katayama
CPC分类号： H01M4/70 , H01M4/04 , H01M4/66 , H01M4/662 , H01M10/0525 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： The present invention relates to a current collector including a base portion with a flat face, primary projections projecting from the flat face, and secondary projections projecting from the top of the primary projections. The present invention also relates to a current collector including a base portion with a flat face and primary projections projecting from the flat face, wherein the roughening rate of the top of the primary projections is 3 to 20. By using such a current collector, separation of the active material from the current collector can be inhibited when using an active material that has a high capacity but undergoes a large expansion at the time of lithium ion absorption.
摘要翻译： 本发明涉及一种集电器，其包括具有平坦表面的基部，从平坦表面突出的第一突起和从第一突起的顶部突出的第二突起。 本发明还涉及一种集电体，其包括具有平坦面的基部和从平坦面突出的一次突起，其中，第一突起的顶部的粗糙化率为3〜20。通过使用这样的集电体， 当使用具有高容量但在锂离子吸收时发生大的膨胀的活性材料时，能够抑制来自集电体的活性物质。
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