公开(公告)号：US20090008237A1

公开(公告)日：2009-01-08

申请号：US12216372

申请日：2008-07-02

申请人： Toshikazu Yoshida ,  Tetsuyuki Murata ,  Shigeki Matsuta ,  Yasunobu Iwami ,  Yoshinori Kida ,  Hiroyuki Akita ,  Koji Hasumi

发明人： Toshikazu Yoshida ,  Tetsuyuki Murata ,  Shigeki Matsuta ,  Yasunobu Iwami ,  Yoshinori Kida ,  Hiroyuki Akita ,  Koji Hasumi

IPC分类号： C01B25/00 ,  B01J19/08

CPC分类号： H01M4/525 ,  H01M4/04 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/052

摘要： Provided is a method for producing an active material for a lithium secondary battery to enable efficient removal of iron impurities, which would become a problem in production of an active material for a lithium secondary battery, and attain a high quality. The method includes removing iron impurities in an active material for a lithium secondary battery by means of magnetic force. With this method, use of a magnetic force-generating device within a recess portion, which composes at least one part of the recess portion, enables efficient removal of only iron impurities. Thus, it is expected that a voltage drop caused by dissolution of iron compounds, i.e. impurities in a positive electrode, and their migration to a negative electrode in a battery, and decreases in charge and discharge efficiencies and a voltage drop owing to precipitation of lithium can be suppressed.

摘要翻译： 本发明提供一种锂二次电池用活性物质的制造方法，能够有效地去除铁质杂质，这在生产锂二次电池用活性物质时将成为问题，达到高质量。 该方法包括通过磁力去除锂二次电池用活性物质中的铁杂质。 利用这种方法，在构成凹部的至少一部分的凹部内使用磁力产生装置能够有效地除去铁杂质。 因此，预期由铁化合物的溶解（即正极中的杂质）及其在电池中的负极迁移引起的电压降，以及由于锂的沉淀导致的电荷和放电效率的降低以及电压降 可以抑制。

公开(公告)号：US20090068560A1

公开(公告)日：2009-03-12

申请号：US12230123

申请日：2008-08-22

申请人： Koji Hasumi ,  Hiroyuki Akita ,  Hironori Shirakata ,  Yoshinori Kida ,  Toshikazu Yoshida ,  Kazunori Donoue ,  Takashi Yamamoto ,  Tetsuyuki Murata ,  Shigeki Matsuta

发明人： Koji Hasumi ,  Hiroyuki Akita ,  Hironori Shirakata ,  Yoshinori Kida ,  Toshikazu Yoshida ,  Kazunori Donoue ,  Takashi Yamamoto ,  Tetsuyuki Murata ,  Shigeki Matsuta

IPC分类号： H01M4/58

CPC分类号： H01M4/5825 ,  H01M4/133 ,  H01M4/136 ,  H01M4/362 ,  H01M10/0525

摘要： A non-aqueous electrolyte secondary battery has a negative electrode, a non-aqueous electrolyte, and a positive electrode containing a positive electrode active material composed of an olivine lithium-containing metal phosphate represented by the general formula LixMPO4, where M is at least one element selected from the group consisting of Co, Ni, Mn, and Fe, and 0

摘要翻译： 非水电解质二次电池具有负极，非水电解质和含有由通式LixMPO4表示的含橄榄石系锂的金属磷酸盐构成的正极活性物质的正极，M为至少一种 元素选自Co，Ni，Mn和Fe，0

公开(公告)号：US08153302B2

公开(公告)日：2012-04-10

申请号：US12071880

申请日：2008-02-27

申请人： Denis Yau Wai Yu ,  Kazunori Donoue ,  Toshikazu Yoshida ,  Tetsuo Kadohata ,  Tetsuyuki Murata ,  Shigeki Matsuta

发明人： Denis Yau Wai Yu ,  Kazunori Donoue ,  Toshikazu Yoshida ,  Tetsuo Kadohata ,  Tetsuyuki Murata ,  Shigeki Matsuta

IPC分类号： H01M4/04

CPC分类号： H01M4/04 ,  C01B25/45 ,  H01M4/5825 ,  H01M10/0525 ,  Y10T29/49108

摘要： A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li3PO4 or Li2CO3, or a substance, other than LiFePO4, in which the valence of Fe is bivalent such as FeSO4, FeO or Fe3(PO4)2 without dissolving Fe of LiFePO4.

摘要翻译： 提供一种生产用于锂二次电池的活性材料的方法，其中提供了有效地除去包含锂过渡金属氧阴离子化合物的锂二次电池的活性材料合成的问题的杂质并实现能量密度的提高 。 通过例如利用pH缓冲溶液清洗包含锂过渡金属氧阴离子化合物的锂二次电池的活性物质，可以仅仅有效地除去Li 3 PO 4或Li 2 CO 3等杂质，或除了LiFePO 4以外的物质 ，其中铁的价数是二价的，如FeSO 4，FeO或Fe 3（PO 4）2，而不溶解LiFePO 4的Fe。

公开(公告)号：US20120079712A1

公开(公告)日：2012-04-05

申请号：US13316259

申请日：2011-12-09

申请人： Denis Yau Wai YU ,  Kazunori Donoue ,  Toshikazu Yoshida ,  Tetsuo Kadohata ,  Tetsuyuki Murata ,  Shigeki Matsuta

发明人： Denis Yau Wai YU ,  Kazunori Donoue ,  Toshikazu Yoshida ,  Tetsuo Kadohata ,  Tetsuyuki Murata ,  Shigeki Matsuta

IPC分类号： H01M10/04 ,  C01D15/00

CPC分类号： H01M4/04 ,  C01B25/45 ,  H01M4/5825 ,  H01M10/0525 ,  Y10T29/49108

摘要： A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li3PO4 or Li2CO3, or a substance, other than LiFePO4, in which the valence of Fe is bivalent such as FeSO4, FeO or Fe3(PO4)2 without dissolving Fe of LiFePO4.

摘要翻译： 提供一种生产用于锂二次电池的活性材料的方法，其中提供了有效地除去包含锂过渡金属氧阴离子化合物的锂二次电池的活性材料合成的问题的杂质并实现能量密度的提高 。 通过例如利用pH缓冲溶液清洗包含锂过渡金属氧阴离子化合物的锂二次电池的活性物质，可以仅仅有效地除去Li 3 PO 4或Li 2 CO 3等杂质，或除了LiFePO 4以外的物质 ，其中铁的价数是二价的，如FeSO 4，FeO或Fe 3（PO 4）2，而不溶解LiFePO 4的Fe。

公开(公告)号：US20080222881A1

公开(公告)日：2008-09-18

申请号：US12071880

申请日：2008-02-27

申请人： Denis Yau Wai Yu ,  Kazunori Donoue ,  Toshikazu Yoshida ,  Tetsuo Kadohata ,  Tetsuyuki Murata ,  Shigeki Matsuta

发明人： Denis Yau Wai Yu ,  Kazunori Donoue ,  Toshikazu Yoshida ,  Tetsuo Kadohata ,  Tetsuyuki Murata ,  Shigeki Matsuta

IPC分类号： H01M10/38 ,  C01D15/00 ,  C01B25/30 ,  G01N23/20 ,  G01N33/00 ,  G01J3/30 ,  H01J49/00 ,  C01G49/00

CPC分类号： H01M4/04 ,  C01B25/45 ,  H01M4/5825 ,  H01M10/0525 ,  Y10T29/49108

摘要： A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li3PO4 or Li2CO3, or a substance, other than LiFePO4, in which the valence of Fe is bivalent such as FeSO4, FeO or Fe3(PO4)2 without dissolving Fe of LiFePO4.

摘要翻译： 提供一种生产用于锂二次电池的活性材料的方法，其中提供了有效地除去包含锂过渡金属氧阴离子化合物的锂二次电池的活性材料合成的问题的杂质并实现能量密度的提高 。 通过例如利用pH缓冲溶液清洗包含锂过渡金属氧阴离子化合物的锂二次电池的活性材料，可以仅仅有效地除去诸如Li 3 PO 3的杂质， 或者其中Fe的化合价为Fe 3+ 3以下的物质，或者LiFePO 4以外的物质，其中Fe的价数为 二价如FeSO 4，FeO或Fe 3（PO 4）2，而不溶解LiFePO的Fe _{4 。}

公开(公告)号：US20050164083A1

公开(公告)日：2005-07-28

申请号：US11041678

申请日：2005-01-25

申请人： Shigekazu Yasuoka ,  Tetsuyuki Murata ,  Jun Ishida

发明人： Shigekazu Yasuoka ,  Tetsuyuki Murata ,  Jun Ishida

IPC分类号： C22F1/10 ,  C01B3/00 ,  C22C19/00 ,  C22F1/00 ,  H01M4/02 ,  H01M4/38 ,  H01M4/46 ,  H01M10/24 ,  H01M10/34 ,  H01M4/58

CPC分类号： H01M4/383 ,  C01B3/0057 ,  H01M4/0404 ,  H01M10/345 ,  H01M2004/021 ,  Y02E60/124 ,  Y02E60/327 ,  Y02P70/54

摘要： An alkaline storage battery including a positive electrode (1), a negative electrode (2) using a hydrogen-absorbing alloy, and an alkaline electrolyte solution employs, as the hydrogen-absorbing alloy in the negative electrode, a hydrogen-absorbing alloy for alkaline storage batteries including at least a rare-earth element, magnesium, nickel, and aluminum, and having an intensity ratio IA/IB of 1.00 or greater, wherein IA is the strongest peak intensity appearing in the range 2θ=32°-33° and IB is the strongest peak intensity appearing in the range 2θ=35°-36° in an X-ray diffraction analysis using CuαKα radiation as the X-ray source.

摘要翻译： 包括正极（1），使用吸氢合金的负极（2）和碱性电解液的碱性蓄电池作为负极中的吸氢合金，使用碱性吸氢合金 包括至少一种稀土元素，镁，镍和铝的并且具有1.00或更大的强度比I A / I B B的蓄电池，其中I < SUB> A 是在2θ= 32°-33°的范围内出现的最强峰强度，I B是在2θ= 35°-36°的范围内出现的最强峰强度 使用CualphaKalpha辐射作为X射线源的X射线衍射分析。

公开(公告)号：US07514178B2

公开(公告)日：2009-04-07

申请号：US11041678

申请日：2005-01-25

申请人： Shigekazu Yasuoka ,  Tetsuyuki Murata ,  Jun Ishida

发明人： Shigekazu Yasuoka ,  Tetsuyuki Murata ,  Jun Ishida

IPC分类号： H01M4/58 ,  C22C19/03

CPC分类号： H01M4/383 ,  C01B3/0057 ,  H01M4/0404 ,  H01M10/345 ,  H01M2004/021 ,  Y02E60/124 ,  Y02E60/327 ,  Y02P70/54

摘要： An alkaline storage battery including a positive electrode (1), a negative electrode (2) using a hydrogen-absorbing alloy, and an alkaline electrolyte solution employs, as the hydrogen-absorbing alloy in the negative electrode, a hydrogen-absorbing alloy for alkaline storage batteries including at least a rare-earth element, magnesium, nickel, and aluminum, and having an intensity ratio IA/IB of 1.00 or greater, wherein IA is the strongest peak intensity appearing in the range 2θ=32°-33° and IB is the strongest peak intensity appearing in the range 2θ=35°-36° in an X-ray diffraction analysis using Cu- Kα radiation as the X-ray source.

摘要翻译： 包括正极（1），使用吸氢合金的负极（2）和碱性电解液的碱性蓄电池作为负极中的吸氢合金，使用碱性吸氢合金 包括至少稀土元素，镁，镍和铝的蓄电池，其强度比IA / IB为1.00以上，其中IA是出现在2θ= 32°-33°范围内的最强峰强度， 在使用Cu-Kalpha辐射作为X射线源的X射线衍射分析中，IB是在2θ= 35°-36°的范围内出现的最强峰强度。

公开(公告)号：US20060078794A1

公开(公告)日：2006-04-13

申请号：US11244034

申请日：2005-10-06

申请人： Tetsuyuki Murata ,  Shigekazu Yasuoka ,  Yoshifumi Magari ,  Tadayoshi Tanaka ,  Jun Ishida

发明人： Tetsuyuki Murata ,  Shigekazu Yasuoka ,  Yoshifumi Magari ,  Tadayoshi Tanaka ,  Jun Ishida

IPC分类号： H01M4/58 ,  H01M4/62

CPC分类号： H01M10/345 ,  H01M4/04 ,  H01M4/383 ,  H01M4/521 ,  H01M4/621 ,  H01M2004/028 ,  Y02E60/124

摘要： Middle point voltage of discharge is increased and at the same time cycle life improved in a nickel-metal hydride storage battery having a negative electrode utilizing a rare earth-nickel hydrogen-absorbing alloy containing Mg and the like and having a crystal structure other than a CaCu5 structure. A nickel-metal hydride storage battery contains a positive electrode (1), a negative electrode (2) including a hydrogen-absorbing alloy, and an alkaline electrolyte solution. The hydrogen-absorbing alloy contains at least a rare-earth element, magnesium, nickel, and aluminum, and has an intensity ratio IA/IB of 0.1 or greater as determined by X-ray diffraction analysis using Cu-Kα radiation as an X-ray source, where IA is the strongest peak intensity that appears in the range of 20=30° to 34°, and IB is the strongest peak intensity that appears in the range of 2θ=40° to 44°. The negative electrode contains a cobalt compound.

摘要翻译： 使用含有Mg等的稀土 - 镍氢吸收合金的具有负极的镍金属氢化物蓄电池中，放电的中点电压增加，同时循环寿命得到改善，并具有不同于 CaCu 5＆lt; 5＆gt;结构。 镍氢蓄电池包含正极（1），含有吸氢合金的负极（2）和碱性电解质溶液。 吸氢合金至少含有稀土元素镁，镍和铝，并且其强度比为0.1或更大，为0.1或更大，为 通过使用Cu-Kalpha辐射的X射线衍射分析确定为X射线源，其中I A是在20 = 30°至34°的范围内出现的最强峰强度，I B 是在2θ= 40°至44°的范围内出现的最强峰值强度。 负极含有钴化合物。

公开(公告)号：US08101121B2

公开(公告)日：2012-01-24

申请号：US10743745

申请日：2003-12-24

申请人： Shigekazu Yasuoka ,  Jun Ishida ,  Tetsuyuki Murata ,  Hiroshi Nakamura

发明人： Shigekazu Yasuoka ,  Jun Ishida ,  Tetsuyuki Murata ,  Hiroshi Nakamura

IPC分类号： C22C19/03 ,  C22C19/05 ,  H01M4/13

CPC分类号： H01M10/26 ,  H01M4/0471 ,  H01M4/383 ,  H01M4/52 ,  H01M10/342 ,  Y02E60/124

摘要： A hydrogen absorbing alloy represented by the formula Ln1−xMgxNiy−aAla (where Ln is at least one element selected from rare earth elements, 0.05≦x

摘要翻译： 由式Ln1-xMgxNiy-aAla表示的吸氢合金（其中Ln为选自稀土元素中的至少一种元素，0.05≤n1E; x <0.20，2.8＆nlE; y＆nlE; 3.9和0.10＆nlE; a＆nlE; 0.25） 用于碱性蓄电池。

公开(公告)号：US07309547B2

公开(公告)日：2007-12-18

申请号：US10787593

申请日：2004-02-27

申请人： Tetsuyuki Murata ,  Shigekazu Yasuoka ,  Jun Ishida

发明人： Tetsuyuki Murata ,  Shigekazu Yasuoka ,  Jun Ishida

IPC分类号： H01M4/58 ,  H01M4/00

CPC分类号： H01M4/242 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/383 ,  H01M10/345 ,  H01M2004/027 ,  Y02E60/124 ,  Y10S420/90

摘要： A hydrogen absorbing alloy containing at least a rare-earth element, magnesium (Mg), nickel (Ni) and aluminum (Al), having an intensity ratio (IA/IB) of not smaller than 0.6 (where IA represents an intensity of the highest peak in a range of 2θ=30°˜34° in the X-ray diffraction pattern using CuKα-radiation as the X-ray source and IB represents the intensity of the highest peak in a range of 2θ=40°˜44°), and not substantially including La as the rare-earth element.

摘要翻译： 含有至少含有稀土元素的镁（Mg），镍（Ni）和铝（Al））的吸氢合金，其强度比（I A / A / SUB>）不大于0.6（其中I A表示使用CuKα的X射线衍射图中在2θ= 30°〜34°的范围内的最高峰的强度 作为X射线源的辐射，I B表示在2θ= 40°〜44°的范围内的最高峰的强度），并且基本上不包括作为稀有的La 地面元素