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    • 1. 发明专利
    • Garnet-type lithium ion-conducting oxide and method for producing the same
    • GARNET型锂离子导电氧化物及其生产方法
    • JP2012031025A
    • 2012-02-16
    • JP2010173392
    • 2010-08-02
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • SAWADA HIROSHIOTA SHINGOMATSUO HIDEHITOASAOKA MASAHIKOKOSAKA SATORUKISHIDA YOSHIHIRO
    • C01G33/00H01B1/06H01B1/08H01B13/00H01M10/0562
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide a garnet-type lithium ion-conducting oxide which has high conductivity and has a small rate of change of conductivity against temperature.SOLUTION: The garnet-type lithium ion-conducting oxide includes aluminum in a skeleton represented by LiLn(MM)O(wherein Ln is one or more sorts of elements selected from the group consisting of La, Pr, Nd, etc., Mis one or more sorts of elements selected from the group consisting of Si, Sc, Ti, V, Ga, Ge, Y, Zr, Nb, In, Sb, Te, Hf, Ta, W, and Bi, Mis an element different from Mand one or more sorts of elements selected from the group consisting of Sc, Ti, V, Y, Nb, Hf, Ta, Si, Ga and Ge, x is a number which satisfies 3≤x≤8, y and z are numbers which satisfy y>0, z≥0, 1.9≤y+z≤2.1, and t is a number which satisfies 11≤t≤13).
    • 要解决的问题:提供一种具有高导电性并且具有小的温度变化率的石榴石型锂离子传导性氧化物。 石榴石型锂离子传导性氧化物包括由Li 3 表示的骨架中的铝(SB 1 y M 2 z )其中Ln是从由La,Pr,Nd等组成的组中选择的一种或多种元素,M 1 是从由Si,Sc,Ti,V,Ga,Ge,Y,Zr,Nb,In,Sb,Te,Hf,Ta,W组成的组中选择的一种或多种元素 ,并且Bi,M 2 是与M 1 不同的元素,以及从以下组成的组中选择的一种或多种元素: Sc,Ti,V,Y,Nb,Hf,Ta,Si,Ga和Ge,x是满足3≤x≤8的数,y和z是满足y> 0,z≥0,1.9≤y +z≤2.1,t为满足11≤t≤13的数)。 版权所有(C)2012,JPO&INPIT
    • 2. 发明专利
    • Lithium secondary battery
    • 锂二次电池
    • JP2011113655A
    • 2011-06-09
    • JP2009266293
    • 2009-11-24
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • SAWADA HIROSHIOTA SHINGOMATSUO HIDEHITOKOBAYASHI TETSUOASAOKA MASAHIKO
    • H01M10/052H01M2/16H01M4/13H01M4/62H01M10/0567
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To further increase cycle characteristics and thermal stability of a lithium secondary battery. SOLUTION: The lithium secondary battery 10 includes a positive electrode sheet 13 having a positive electrode active material 12a, a negative electrode sheet 18 having a negative electrode active material, and a nonaqueous electrolyte 20 interposed between the positive electrode sheet 13 and the negative electrode sheet 18 to conduct lithium. In the lithium secondary battery 10, the positive electrode active material 12a and a lithium ion conducting garnet type oxide 12b are contained in the positive electrode sheet 13. The garnet type oxide may be expressed by a composition formula Li 5+X La 3 (Zr X ,A 2-X )O 12 (wherein A is one or more elements selected from the group of Sc, Ti, V, Y, Nb, Hf, Ta, Al, Si, Ga and Ge, and X is 1.4≤X COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:进一步增加锂二次电池的循环特性和热稳定性。 解决方案:锂二次电池10包括具有正极活性物质12a的正极片13,具有负极活性物质的负极片18和置于正电极片13与正电极片13之间的非水电解质20。 负极片18进行锂化。 在锂二次电池10中,正极片13中含有正极活性物质12a和锂离子传导性石榴石型氧化物12b。石榴石型氧化物可以由组成式Li <5> / SB> La SB 3(Zr SB),A SB SB 2 X X SB)(其中A是一个或者多个) 选自Sc,Ti,V,Y,Nb,Hf,Ta,Al,Si,Ga和Ge中的更多元素,X为1.4≤X<2)。 石榴石型氧化物12b可以存在于正极,负极和电解质中的至少一种以上。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Method for manufacturing composite, composite, and alkaline metal secondary battery including the same
    • 制造复合材料,复合材料和碱金属二次电池的方法
    • JP2012059529A
    • 2012-03-22
    • JP2010201351
    • 2010-09-08
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • MATSUO HIDEHITOOTA SHINGOSAWADA HIROSHIKOBAYASHI TETSUOASAOKA MASAHIKOSEKI JUNTARO
    • H01M10/058H01B1/06H01M10/052H01M10/0562
    • Y02P70/54
    • PROBLEM TO BE SOLVED: To increase energy density and reduce inner resistance furthermore, in an alkaline metal secondary battery.SOLUTION: A method for manufacturing a composite according to the present invention includes: a raw materials forming step of preparing a raw materials forming body including a material of raw materials formed on a surface of a solid electrolyte conducting an alkaline metal, the material of raw materials at least containing raw materials of an active material capable of forming the active material through a reaction with the alkaline metal; and an active material forming step of firing the raw materials forming body and forming the active material on the surface of the solid electrolyte using even the alkaline metal existing on the surface of the solid electrolyte. In the composite according to the present invention, active material particles are formed to be brought into close contact with the surface of the solid electrolyte conducting the alkaline metal, and an alkaline metal compound layer including the alkali metal is not formed between the solid electrolyte and the active material.
    • 要解决的问题:在碱金属二次电池中进一步增加能量密度并降低内阻。 解决方案:根据本发明的复合材料的制造方法包括:原料形成步骤,准备包含在导电碱金属的固体电解质的表面上形成的原料的材料的原料形成体, 原材料至少含有能够通过与碱金属的反应形成活性物质的活性物质的原料; 以及使固体电解质表面上存在的碱金属均匀地烧结原料形成体并在固体电解质的表面形成活性物质的活性物质形成工序。 在根据本发明的复合材料中,形成活性物质颗粒与导电碱金属的固体电解质的表面紧密接触,并且在固体电解质和固体电解质之间不形成包含碱金属的碱金属化合物层 活性物质。 版权所有(C)2012,JPO&INPIT
    • 4. 发明专利
    • Method and device for detecting battery property
    • 用于检测电池性能的方法和装置
    • JP2008107168A
    • 2008-05-08
    • JP2006289286
    • 2006-10-24
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • MATSUO HIDEHITOKOBAYASHI TETSUOKONDO YASUHITOUKIYOU YOSHIO
    • G01R31/36H01M10/48H02J7/00
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To precisely detect the battery condition by considering the battery property of electric double layer capacity.
      SOLUTION: A secondary battery 40 is superposed by sine waves of a prescribed frequency, and conductance G and susceptance B are calculated according to response current, and based on the results of the calculation, the battery charged condition (dischargeable capacity) is found. The susceptance and conductance being electrochemical parameter reflecting the electric double layer capacity property are in high correlation with the remaining capacity of the actual battery and also the battery history is highly precise. The susceptance and conductance can be measured by utilizing a two phase oscillation circuit. Thereby, the battery condition can be highly precisely and easily detected.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过考虑电双层容量的电池特性来精确地检测电池状况。 解决方案:二次电池40通过规定频率的正弦波叠加,并且根据响应电流计算电导G和电纳B,并且基于计算结果,电池充电状态(可放电容量)为 找到。 反映双电层容量特性的电化学参数的电导率和电导率与实际电池的剩余容量高度相关,电池历史也非常精确。 可以通过利用两相振荡电路来测量电纳和电导。 由此,可以高精度地且容易地检测电池状态。 版权所有(C)2008,JPO&INPIT
    • 5. 发明专利
    • Lithium secondary battery and electrode for the same
    • 锂二次电池和电极
    • JP2011159528A
    • 2011-08-18
    • JP2010020943
    • 2010-02-02
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • MATSUO HIDEHITOOTA SHINGOSAWADA HIROSHIKOBAYASHI TETSUOASAOKA MASAHIKO
    • H01M10/058H01M4/13H01M10/052H01M10/0566
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To provide a lithium secondary battery enhancing safety and performing more stable charging and discharging as well. SOLUTION: The lithium secondary battery 10 includes a cathode 13 in which a cathode active material layer 12 is formed on a current collector 11, an anode 18 in which an anode active material layer 17 is formed on a surface of a current collector 14, an insulation layer 19 formed on the surface of the anode active material layer 17, and a nonaqueous electrolyte solution 20 interposed between the cathode 13 and the anode 18. The insulation layer 19 is formed of a garnet-type oxide which contains Zr and conducts lithium ion. The insulation layer 19 is formed of the garnet-type oxide as expressed in a composition formula Li 5+X La 3 (Zr X , A 2-X )O 12 . In the formula, A is an element of one kind or more selected from a group of Sc, Ti, V. Y, Nb, Hf, Ta, Al, Si, Ga and Ge, and X is 1.4≤X COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种提高安全性并执行更稳定的充放电的锂二次电池。 解决方案:锂二次电池10包括在集电体11上形成阴极活性物质层12的阴极13,在集电体11的表面上形成有负极活性物质层17的阳极18 14是形成在阳极活性物质层17的表面上的绝缘层19,以及设置在阴极13和阳极18之间的非水电解质溶液20.绝缘层19由含有Zr的石榴石型氧化物形成, 进行锂离子。 绝缘层19由以下组成式表示的石榴石型氧化物形成:组成式Li&lt; SB&gt; 5 + X&lt; 3&lt; 3&gt;(SB) 2-X )O 12 。 在该式中,A是选自Sc,Ti,V,Y,Nb,Hf,Ta,Al,Si,Ga和Ge中的一种以上的元素,X为1.4≤X<2。 绝缘层19可以形成在阴极活性物质层12的表面上。版权所有:(C)2011,JPO&INPIT
    • 8. 发明专利
    • Detecting method and device of battery characteristics
    • 电池特性的检测方法和装置
    • JP2008041565A
    • 2008-02-21
    • JP2006217399
    • 2006-08-09
    • Toyota Central Res & Dev Lab Inc株式会社豊田中央研究所
    • MATSUO HIDEHITOKOBAYASHI TETSUOKONDO YASUHITOHASEGAWA MADOKAUKIYOU YOSHIO
    • H01M10/48G01R31/36
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To detect a temporary characteristics change easily and in a high precision by reflecting an internal mass transfer speed of a battery. SOLUTION: A voltage rectangular wave is impressed on a secondary battery 40 and based on a responding current at the time, an electrochemical parameter which reflects an internal mass transfer speed is calculated and, for example, is compared with an electrochemical parameter or the like of the battery in a standard status when a characteristics change is not brought about, and if a comparison result is less than a predetermined threshold value, the electrochemical parameter is a numerical value reflecting a diffusion factor, and as an example, a charging load Qf, a discharging load Qr, which are able to be calculated from the responding current at a time of impressing the voltage rectangular wave, can be taken up. The electrochemical parameter reflecting the diffusion factor changes by a temporary characteristics change such as a memory effect or the like and returns to the normal value when the temporary change is over, and as a result, if the parameter is taken up, the characteristic change can be detected easily in a high precision and in a short time. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过反映电池的内部传质速度,容易且高精度地检测临时特性变化。 解决方案:电压矩形波施加在二次电池40上,并且基于当时的响应电流,计算反映内部传质速度的电化学参数,并且例如与电化学参数进行比较 当没有产生特性变化时,处于标准状态的电池的类似物,并且如果比较结果小于预定阈值,则电化学参数是反映扩散因子的数值,并且作为示例,充电 可以考虑能够根据施加电压矩形波时的响应电流计算的负载Qf,放电负载Qr。 反映扩散因子的电化学参数通过诸如存储效应等的临时特性变化而变化,并且当临时改变结束时返回到正常值,结果,如果参数被占用,则特性变化可以 可以在高精度和短时间内轻松检测。 版权所有(C)2008,JPO&INPIT
    • 10. 发明专利
    • Method and device for detecting remaining capacity of battery
    • 用于检测电池剩余容量的方法和装置
    • JP2007017357A
    • 2007-01-25
    • JP2005200968
    • 2005-07-08
    • Toyota Central Res & Dev Lab IncToyota Motor Corpトヨタ自動車株式会社株式会社豊田中央研究所
    • MATSUO HIDEHITOKOBAYASHI TETSUOKONDO YASUHITOITO YUICHIUKIYOU YOSHIOKIKUCHI YOSHITERU
    • G01R31/36H01M10/48H02J7/00
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To measure the remaining capacity or SOC of a secondary battery, on the basis of mass movement resistance being internal resistance strongly correlated to the remaining capacity of the battery. SOLUTION: A load resistor 12 is connected to the secondary battery 40, the battery is allowed to perform a constant current discharge, and terminal-to-terminal voltage values of the secondary battery in course of the constant current discharge are measured by a voltage measuring portion 14. An SOC calculation portion 20 detects a value of polarization Ed or a value of resistance Rd dominating the internal mass movement, based on easiness in movement of an electrode reacting substance in the secondary battery on the occasion of its moving up to a reaction part, on the basis of the terminal-to-terminal voltage values measured just after the start of the constant current discharge and after the passage of a predetermined period of time. Based on the obtained value of polarization Ed or value of resistance Rd dominating the internal mass movement, the SOC of the secondary battery 40 is detected. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了测量二次电池的剩余容量或SOC,其基于质量运动阻力是与电池的剩余容量密切相关的内部电阻。

      解决方案:负载电阻器12连接到二次电池40,允许电池执行恒流放电,并且在恒定电流放电过程中二次电池的端对端电压值通过 电压测量部分14.SOS计算部分20基于在二次电池中的电极反应物质向上移动时容易移动的情况下,检测极化Ed的值或主导内部质量运动的电阻Rd的值 基于刚刚开始恒定电流放电后测量的端子间电压值和经过预定时间段之后的反应部分。 基于获得的极化值Ed或主要内部质量运动的电阻值Rd,检测二次电池40的SOC。 版权所有(C)2007,JPO&INPIT