公开(公告)号：US20120231334A1

公开(公告)日：2012-09-13

申请号：US13510876

申请日：2011-08-10

Applicant: Masahiro Kinoshita ,  Kensuke Nakura

Inventor： Masahiro Kinoshita ,  Kensuke Nakura

IPC: H01M10/052 ,  B05D5/12 ,  H01M4/64 ,  H01M4/485 ,  H01M10/054 ,  H01M4/131

CPC classification number: H01M4/5825 ,  B82Y30/00 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/366

Abstract: Positive electrode active material particles for lithium ion secondary batteries include: a core particle including a first olivine-structured, lithium-containing phosphate compound which includes Fe and/or Mn and Li; and a shell layer attached to the surface of the core particle. The shell layer includes a second olivine-structured, lithium-containing phosphate compound which includes Fe and/or Mn and Li. At least the core particle includes a phosphorous compound represented by the formula (1): MemPnOp, where Me is Fe and/or Mn, 0

Abstract translation: 用于锂离子二次电池的正极活性物质颗粒包括：包含第一橄榄石结构的含锂磷酸盐化合物的核心颗粒，其包含Fe和/或Mn和Li; 以及附着在芯粒子表面的壳层。 壳层包括包含Fe和/或Mn和Li的第二橄榄石结构的含锂磷酸盐化合物。 至少核心颗粒包括由式（1）表示的磷化合物：MemPnOp，其中Me是Fe和/或Mn，0

公开(公告)号：US20120088137A1

公开(公告)日：2012-04-12

申请号：US13378210

申请日：2010-06-24

Applicant: Kensuke Nakura

Inventor： Kensuke Nakura

IPC: H01M10/0525 ,  H01M10/05 ,  H01M10/02 ,  H01M4/13

CPC classification number: H01M10/052 ,  H01M2/26 ,  H01M4/661 ,  H01M10/0585 ,  H01M10/0587 ,  Y02T10/7011

Abstract: A battery case houses an electrode group formed by winding a positive electrode plate where a positive electrode active material layer is provided on a positive electrode current collector and a negative electrode plate where a negative electrode active material layer is provided on a negative electrode current collector with a porous insulating layer interposed therebetween. The current collectors are made of metal foil of an identical material. An end of the positive electrode current collector has a first exposed portion provided with no positive electrode active material layer. An end of the negative electrode current collector has a second exposed portion provided with no negative electrode active material layer. The exposed portions and project from the porous insulating layer in opposite directions. The first and second exposed portions and are connected to positive and negative electrode current collector plates, respectively.

Abstract translation: 电池壳体容纳通过在正极集电体上设置正极活性物质层的正极板和在负极集电体上设置负极活性物质层的负极板卷绕正极板而形成的电极组， 插入其间的多孔绝缘层。 集电器由相同材料的金属箔制成。 正极集电体的端部具有不具有正极活性物质层的第一露出部。 负极集电体的端部具有不具有负极活性物质层的第二露出部。 暴露部分并从相反方向从多孔绝缘层突出。 第一和第二暴露部分分别连接到正极和负极集电板。

公开(公告)号：US20120009475A1

公开(公告)日：2012-01-12

申请号：US13257549

申请日：2011-03-03

Applicant: Kensuke Nakura

Inventor： Kensuke Nakura

IPC: H01M4/131

CPC classification number: H01M10/0587 ,  H01M4/131 ,  H01M4/133 ,  H01M4/136 ,  H01M4/485 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/021 ,  Y02T10/7011

Abstract: An electrode for a non-aqueous electrolyte secondary battery includes a sheet-like current collector and an active material layer including a first layer and a second layer which are adhering to a surface of the current collector in this order. The first layer includes a carbon material that absorbs or releases lithium ions reversibly at a first potential, while the second layer includes a transition metal oxide that absorbs or releases lithium ions reversibly at a second potential higher than the first potential. The difference between the first potential and the second potential is 0.1 V or more, and the ratio of the thickness T1 of the first layer to the thickness T2 of the second layer, i.e., the ratio T1/T2, is from 0.33 to 75.

Abstract translation: 非水电解质二次电池用电极包括依次附着在集电体的表面上的片状集电体和含有第一层和第二层的活性物质层。 第一层包括在第一电势下可逆地吸收或释放锂离子的碳材料，而第二层包括在高于第一电位的第二电位下可逆地吸收或释放锂离子的过渡金属氧化物。 第一电位和第二电位之间的差为0.1V以上，第一层的厚度T1与第二层的厚度T2之比即T1 / T2为0.33〜75。

公开(公告)号：US20110136001A1

公开(公告)日：2011-06-09

申请号：US13058100

申请日：2010-05-27

Applicant: Kensuke Nakura ,  Yasunari Sugita

Inventor： Kensuke Nakura ,  Yasunari Sugita

IPC: H01M2/02 ,  H01M4/86

CPC classification number: C01G53/62 ,  C01G23/005 ,  C01G45/125 ,  C01G45/1285 ,  C01G49/009 ,  C01G51/62 ,  C01P2002/52 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  Y02T10/7011

Abstract: A negative electrode active material which is low-cost and has a high energy density, and a lithium ion secondary battery using such a negative electrode active material are provided. The lithium ion secondary battery uses, as the negative electrode active material, an orthorhombic-system metal composite oxide represented by the formula A2±xB2±yO5±z; (0≦x≦0.1, 0≦y≦0.1, 0≦z≦0.3, A includes at least one element selected from the group consisting of alkaline earths and transition metals except for manganese, and B includes at least manganese), where the formal oxidation number of A is +2, and the formal oxidation number of B is greater than or equal to +2.5 and less than or equal to +3.3.

Abstract translation: 提供低成本，高能量密度的负极活性物质和使用这种负极活性物质的锂离子二次电池。 锂离子二次电池使用由式A2±xB2±yO5±z表示的正交系金属复合氧化物作为负极活性物质， （0＆nlE; x＆nlE; 0.1,0＆nlE; y＆nlE; 0.1,0＆nlE; z＆nlE; 0.3，A包括至少一种选自碱金属和除锰以外的过渡金属的元素，B包括至少锰），其中 A的正式氧化数为+2，B的形式氧​​化数大于或等于+ 2.5且小于或等于+3.3。

公开(公告)号：US07939200B2

公开(公告)日：2011-05-10

申请号：US11430994

申请日：2006-05-10

Applicant: Tsutomu Ohzuku ,  Hiroshi Yoshizawa ,  Kensuke Nakura

Inventor： Tsutomu Ohzuku ,  Hiroshi Yoshizawa ,  Kensuke Nakura

IPC: H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525

CPC classification number: H01M10/0525 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M2010/4292

Abstract: As an alternative technique to lead-acid batteries, the present invention provides an inexpensive 2 V non-aqueous electrolyte secondary battery having excellent cycle life at a high rate by preventing volume change during charge and discharge. The non-aqueous electrolyte secondary battery uses: a positive electrode active material having a layered structure, being represented by chemical formula Li1±α[Me]O2, where 0≦α

Abstract translation: 作为铅酸蓄电池的替代技术，本发明通过防止充放电期间的体积变化，提供了一种廉价的2V非水电解质二次电池，其通过高速率具有优异的循环寿命。 非水电解质二次电池使用具有层状结构的正极活性物质，由化学式Li1±α[Me] O 2表示，其中0＆nlE;α<0.2，Me是包含Ni的至少一种过渡金属，至少 一种选自Mn，Fe，Co，Ti和Cu，并且包括基本相同比例的元素镍和元素钴; 和Li 4 Ti 5 O 12（Li [Li 1/3 Li 5/3）O 4）的负极活性物质。

公开(公告)号：US07674556B2

公开(公告)日：2010-03-09

申请号：US10447011

申请日：2003-05-28

Applicant: Kensuke Nakura ,  Takafumi Oura ,  Mitsuhiro Takeno ,  Shuji Tsutsumi ,  Kazuhiro Okamura

Inventor： Kensuke Nakura ,  Takafumi Oura ,  Mitsuhiro Takeno ,  Shuji Tsutsumi ,  Kazuhiro Okamura

IPC: H01M4/58 ,  H01M4/00 ,  H01M2/18 ,  H02J7/04 ,  H02J7/16

CPC classification number: H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/44 ,  H01M2300/0051 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A non-aqueous electrolyte secondary battery comprises a negative electrode including a negative electrode active material, a positive electrode including a positive electrode active material, and a non-aqueous electrolyte; the positive electrode active material is LiNi1-y-zMnyCozO2, wherein y and z satisfy 0

Abstract translation: 非水电解质二次电池包括负极，包括负极活性物质，正极，包括正极活性物质和非水电解质; 正极活性物质为LiNi1-y-zMnyCozO2，其中y和z满足0

公开(公告)号：US20080311473A1

公开(公告)日：2008-12-18

申请号：US12034265

申请日：2008-02-20

Applicant: Hideo SASAOKA ,  Ryuuichi Kuzuo ,  Atsushi Fukui ,  Mitsukuni Kondou ,  Shin Imaizumi ,  Kensuke Nakura ,  Shuji Tsutsumi

Inventor： Hideo SASAOKA ,  Ryuuichi Kuzuo ,  Atsushi Fukui ,  Mitsukuni Kondou ,  Shin Imaizumi ,  Kensuke Nakura ,  Shuji Tsutsumi

IPC: H01M4/00 ,  H01M4/88

CPC classification number: H01M4/525 ,  H01M4/364 ,  H01M4/485 ,  H01M4/505 ,  H01M10/052 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: The present invention provides a cathode active material that makes possible a high capacity nonaqueous electrolyte secondary battery that has excellent discharge load characteristics that provide both good cycle characteristics and thermal stability. The cathode active material comprises a lithium nickel composite oxide having the compositional formula LiNi1−aMaO2 (where, M is at least one kind of element that is selected from among a transitional metal other than Ni, a group 2 element, and group 13 element, and 0.01≦a≦0.5) to which fine lithium manganese composite oxide particle adhere to the surface thereof. This lithium nickel composite oxide is obtained by adding manganese salt solution to a lithium nickel composite oxide slurry, causing manganese hydroxide that contains lithium to adhere to the surface of the lithium nickel composite oxide particles, and then baking that lithium nickel composite oxide.

Abstract translation: 本发明提供一种阴极活性材料，其使得具有优异的放电负荷特性的提供良好的循环特性和热稳定性的高容量非水电解质二次电池成为可能。 正极活性物质包含具有组成式LiNi1-aMaO2的锂镍复合氧化物（其中，M为选自Ni之外的过渡金属，第2族元素和13族元素中的至少一种元素， 和0.01 <= a <= 0.5），细小的锂锰复合氧化物颗粒附着在其表面上。 该锂镍复合氧化物是通过向锂镍复合氧化物浆料中添加锰盐溶液而得到的，其中含有锂的氢氧化锰粘附在锂镍复合氧化物粒子的表面上，然后焙烧该锂镍复合氧化物。

公开(公告)号：US20080268347A1

公开(公告)日：2008-10-30

申请号：US12058430

申请日：2008-03-28

Applicant: Tsutomu Ohzuku ,  Hiroshi Yoshizawa ,  Kensuke Nakura

Inventor： Tsutomu Ohzuku ,  Hiroshi Yoshizawa ,  Kensuke Nakura

IPC: H01M6/18 ,  C23C8/10

CPC classification number: H01M10/0525 ,  C01G45/1228 ,  C01G45/125 ,  C01G53/00 ,  C01G53/42 ,  C01G53/44 ,  C01G53/56 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/62 ,  C01P2006/40 ,  H01M4/505 ,  H01M4/525 ,  H01M2004/021 ,  Y02T10/7011

Abstract: An active material for a non-aqueous electrolyte secondary battery including a lithium-containing transition metal oxide containing nickel and manganese and having a closest-packed structure of oxygen, wherein an atomic ratio MLi/MT between the number of moles of lithium MLi and the number of moles of transition metal Mt contained in the lithium-containing transition metal oxide is greater than 1.0; the lithium-containing transition metal oxide has a crystal structure attributed to a hexagonal system, and the X-ray diffraction image of the crystal structure has a peak P003 attributed to the (003) plane and a peak P104 attributed to the (104) plane; an integrated intensity ratio I003/I104 between the peak P003 and the peak P104 varies reversibly within a range from 0.7 to 1.5 in association with absorption and desorption of lithium by the lithium-containing transition metal oxide; and the integrated intensity ratio varies linearly and continuously.

Abstract translation: 1.一种非水电解质二次电池用活性物质，其含有含有镍和锰的含锂过渡金属氧化物，并且具有最密堆积的氧结构，其中原子比M L1 / M _{T 104 可逆地变化， 与含锂过渡金属氧化物的锂吸收和解吸有关，为0.7〜1.5的范围; 并且积分强度比线性和连续变化。}

公开(公告)号：US20050147889A1

公开(公告)日：2005-07-07

申请号：US10979764

申请日：2004-11-03

Applicant: Tsutomu Ohzuku ,  Hiroshi Yoshizawa ,  Kensuke Nakura

Inventor： Tsutomu Ohzuku ,  Hiroshi Yoshizawa ,  Kensuke Nakura

IPC: H01M4/66 ,  H01M2/16 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/058 ,  H01M4/48 ,  H01M4/50 ,  H01M4/52 ,  H01M10/40

CPC classification number: H01M10/0525 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M2010/4292

Abstract: As an alternative technique to lead-acid batteries, the present invention provides an inexpensive 2 V non-aqueous electrolyte secondary battery having excellent cycle life at a high rate by preventing volume change during charge and discharge. The non-aqueous electrolyte secondary battery uses: a positive electrode active material having a layered structure, being represented by chemical formula Li1±α[Me]O2, where 0≦α

Abstract translation: 作为铅酸蓄电池的替代技术，本发明通过防止充放电期间的体积变化，提供了一种廉价的2V非水电解质二次电池，其通过高速率具有优异的循环寿命。 非水电解质二次电池使用具有层状结构的正极活性物质，其由化学式Li 1〜α2 [Me] O 2 2表示，其中0 <=α<0.2，Me是包含Ni和选自Mn，Fe，Co，Ti和Cu中的至少一种的过渡金属，并且包括基本上相同比例的元素镍和元素钴; 和包含Li 4 Ti 5 O 12（Li [Li 1/3] Ti 2 O 3的负极活性材料， O 3/3/3）。

公开(公告)号：US08658312B2

公开(公告)日：2014-02-25

申请号：US13377112

申请日：2010-12-09

Applicant: Kenichi Honoki ,  Kensuke Nakura

Inventor： Kenichi Honoki ,  Kensuke Nakura

IPC: H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/62

CPC classification number: H01M4/525 ,  H01M4/0404 ,  H01M4/364 ,  H01M4/366 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0587 ,  H01M2004/028 ,  Y10T29/49115

Abstract: A positive electrode includes a positive electrode current collector, and a positive electrode active material layer formed on the surface of the positive electrode current collector. The positive electrode active material layer includes: a lithium-containing nickel oxide represented by the general formula (1): LixNi1−(p+q+r)CopAlqMrO2+y, where M is a transition metal (excluding Ni and Co) or the like, 0.8≦x≦1.4, and 0

Abstract translation: 正极包括正极集电体和在正极集电体的表面上形成的正极活性物质层。 正极活性物质层包括：由通式（1）表示的含锂的氧化镍：LixNi1-（p + q + r）CopAlqMrO2 + y，其中M是过渡金属（不包括Ni和Co）或 像0.8 @ x @ 1.4，0 <（p + q + r）@ 0.7）; 和碳酸锂。 正极活性物质层具有碳酸锂的高浓度区域和碳酸锂的低浓度区域。 高浓度区域占正极活性物质层总厚度的2〜80％，从其表面开始。 低浓度区域覆盖正极活性物质层的正极集电体侧残留的范围。