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公开(公告)号:US5903136A
公开(公告)日:1999-05-11
申请号:US975668
申请日:1997-11-28
申请人: Tadashi Takahashi , Satoru Funaki , Hideki Miyazaki , Katsunori Nishimura , Yoshiaki Kumashiro , Akihiro Takanuma
发明人: Tadashi Takahashi , Satoru Funaki , Hideki Miyazaki , Katsunori Nishimura , Yoshiaki Kumashiro , Akihiro Takanuma
CPC分类号: H01M10/44 , H02J7/0086 , H02J7/0093
摘要: During the charging of a secondary battery, the charging current is maintained, but the value of the current is changed for a short time, and the internal resistance of the battery is calculated from the voltage and the current before and after the changing of the charging current. The charging voltage is determined by adding an extra voltage equivalent to the voltage drop caused by the internal resistance to a designated voltage. Thus, it takes only a short time for stabilizing the voltage when the current is changed, because the charging current is not switched off completely. Therefore, the charging time can be shortened.
摘要翻译: 在二次电池的充电期间,保持充电电流,但是电流值在短时间内变化,并且电池的内部电阻根据充电变化前后的电压和电流计算 当前。 通过将与由内部电阻引起的电压降相当的额外电压加到指定电压来确定充电电压。 因此,由于充电电流没有完全关断,电流变化时稳定电压只需要很短的时间。 因此,可以缩短充电时间。
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公开(公告)号:US06262561B1
公开(公告)日:2001-07-17
申请号:US09219433
申请日:1998-12-23
IPC分类号: H02J700
CPC分类号: H01M10/4257 , B60L11/1851 , G01R31/362 , G01R31/3658 , H01M10/482 , H02J7/0016 , H02J7/0021 , Y02T10/7011 , Y02T10/705 , Y02T10/7055 , Y02T90/16
摘要: A battery system includes a battery assembly having a plurality of modules, which are controlled by a system control circuit, each module including a module control circuit and a module by-pass circuit which is controlled via the module control circuit so as to suppress the charging variation among the plurality of modules. Each control circuit and the system-controlling circuit are connected to each other via a bilateral transmission medium and each module by-pass circuit is controlled based on information bilaterally transmitted between each module control circuit and the system control circuit via the bilateral transmission medium.
摘要翻译: 电池系统包括具有由系统控制电路控制的多个模块的电池组件,每个模块包括模块控制电路和模块旁路电路,其经由模块控制电路控制以便抑制充电 多个模块之间的变化。 每个控制电路和系统控制电路通过双向传输介质相互连接,并且每个模块旁路电路基于通过双向传输介质在每个模块控制电路和系统控制电路之间双向传输的信息进行控制。
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公开(公告)号:US20130189591A1
公开(公告)日:2013-07-25
申请号:US13877687
申请日:2011-08-19
IPC分类号: H01M10/056
CPC分类号: H01M10/056 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M10/4235 , H01M2300/0037 , H01M2300/004 , H01M2300/0042 , Y02T10/7011
摘要: The present invention aims to improve the fire resistance of an electrolytic solution used for a lithium-ion battery and improve the life characteristics of the lithium-ion battery. In the lithium ion battery of the present invention, specific amounts of ethylene carbonate and dimethyl carbonate are used for a non-aqueous electrolytic solution, and trimethyl phosphate is added thereto. Specifically, the non-aqueous electrolytic solution contains 60 vol % or more of ethylene carbonate (EC) and dimethyl carbonate (DMC). The volume ratio of DMC to the sum of EC and DMC is 0.3 to 0.6, and the non-aqueous electrolytic solution contains 3 to 5 wt % of trimethyl phosphate (TMP) with respect to the total weight of the non-aqueous electrolytic solution. Such a non-aqueous electrolytic solution has an effect of improving the self-fire extinguishing property, and thus improves the safety of the lithium-ion battery.
摘要翻译: 本发明旨在提高用于锂离子电池的电解液的耐火性,并提高锂离子电池的使用寿命。 在本发明的锂离子电池中,对于非水电解液使用碳酸亚乙酯和碳酸二甲酯的特定量,并向其中加入磷酸三甲酯。 具体地说,非水电解液含有60体积%以上的碳酸亚乙酯(EC)和碳酸二甲酯(DMC)。 DMC与EC和DMC的总和的体积比为0.3〜0.6,相对于非水电解液的总重量,非水电解液含有3〜5重量%的磷酸三甲酯(TMP)。 这样的非水电解液具有提高自熄灭性的效果,提高了锂离子电池的安全性。
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公开(公告)号:US09214701B2
公开(公告)日:2015-12-15
申请号:US13877621
申请日:2011-08-19
IPC分类号: H01M10/0525 , H01M10/0563 , H01M4/131 , H01M4/133 , H01M4/505 , H01M4/587 , H01M10/0567 , H01M10/0569 , H01M10/44 , H01M4/02
CPC分类号: H01M10/0563 , H01M4/131 , H01M4/133 , H01M4/505 , H01M4/587 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M10/446 , H01M2004/021 , Y02E60/122 , Y02T10/7011
摘要: Provided is a technique of achieving a longer-life lithium ion secondary battery. The lithium ion secondary battery includes a cathode including a cathode active material containing Mn, an anode including an anode active material containing graphite and non-aqueous electrolytic solution including electrolyte, and LiBF4 and LiPF6 are allowed to coexist in the non-aqueous electrolytic solution. Especially preferably LiPF6 is contained more than LiBF4 in the electrolytic solution. Preferably the electrolytic solution further includes iodide salt. As a result, an oxide of phosphor and boron is deposited on the cathode, thus preventing elution of Mn included in the cathode. The amount of these electrolytes is preferably in the decreasing order of phosphor, boron and then iodine.
摘要翻译: 提供了一种实现更长寿命的锂离子二次电池的技术。 锂离子二次电池包括含有包含Mn的正极活性物质的阴极,包含含有石墨的负极活性物质的阳极和包含电解质的非水电解液,LiBF 4和LiPF 6的阴极共存在非水电解液中。 特别优选LiPF 6在电解液中含有多于LiBF 4。 优选地,电解液还包含碘化物盐。 结果,在阴极上沉积荧光体和硼的氧化物,从而防止阴极中包含的Mn的溶出。 这些电解质的量优选为荧光体,硼和碘的降序。
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公开(公告)号:US20130202957A1
公开(公告)日:2013-08-08
申请号:US13877621
申请日:2011-08-19
IPC分类号: H01M10/0563 , H01M4/131 , H01M10/0525
CPC分类号: H01M10/0563 , H01M4/131 , H01M4/133 , H01M4/505 , H01M4/587 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M10/446 , H01M2004/021 , Y02E60/122 , Y02T10/7011
摘要: Provided is a technique of achieving a longer-life lithium ion secondary battery. The lithium ion secondary battery includes a cathode including a cathode active material containing Mn, an anode including an anode active material containing graphite and non-aqueous electrolytic solution including electrolyte, and LiBF4 and LiPF6 are allowed to coexist in the non-aqueous electrolytic solution. Especially preferably LiPF6 is contained more than LiBF4 in the electrolytic solution. Preferably the electrolytic solution further includes iodide salt. As a result, an oxide of phosphor and boron is deposited on the cathode, thus preventing elution of Mn included in the cathode. The amount of these electrolytes is preferably in the decreasing order of phosphor, boron and then iodine.
摘要翻译: 提供了一种实现更长寿命的锂离子二次电池的技术。 锂离子二次电池包括含有包含Mn的正极活性物质的阴极,包含含有石墨的负极活性物质的阳极和包含电解质的非水电解液,LiBF 4和LiPF 6的阴极共存在非水电解液中。 特别优选LiPF 6在电解液中含有多于LiBF 4。 优选地,电解液还包含碘化物盐。 结果,在阴极上沉积荧光体和硼的氧化物,从而防止阴极中包含的Mn的溶出。 这些电解质的量优选为荧光体,硼和碘的降序。
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公开(公告)号:US08421418B2
公开(公告)日:2013-04-16
申请号:US12541612
申请日:2009-08-14
申请人: Yoshiaki Kumashiro , Yoshimi Yanai , Eiji Seki
发明人: Yoshiaki Kumashiro , Yoshimi Yanai , Eiji Seki
IPC分类号: H02J7/00
CPC分类号: H02J7/0086
摘要: In a charging/discharging unit provided with: a lithium secondary battery, a voltage detecting sensor for detecting a voltage and a current detecting sensor; the charging/discharging control unit is further provided with a controller, and a discharging element for performing a constant voltage discharging operation of 3 V. A voltage, V0, of the battery when a discharging operation is terminated (t=0) is measured by the voltage detecting sensor. If V0≦3.6 V, within a rest time during which the battery is not charged/discharged until a next charging operation, a voltage, V1, of the battery when a time, t1, has elapsed is measured by the voltage detecting sensor. If this voltage charge is in a range of V1-V0≧0.2 V, then the constant voltage discharging operation of 3 V is carried out for a time duration longer than or equal to 1 hour.
摘要翻译: 在具有锂二次电池,用于检测电压的电压检测传感器和电流检测传感器的充电/放电单元中, 充放电控制单元还设置有控制器和用于执行3V的恒定电压放电操作的放电元件。当放电操作终止时,电池的电压V0(t = 0)通过 电压检测传感器。 如果V0≦̸ 3.6V,则在电池在下一次充电操作之前未被充电/放电的休息时间内,当经过时间t1时,电池的电压V1由电压检测传感器测量。 如果该电压在V1-V0≥0.2V的范围内,则3V的恒定电压放电动作持续时间大于等于1小时。
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公开(公告)号:US20090263721A1
公开(公告)日:2009-10-22
申请号:US12388580
申请日:2009-02-19
申请人: Hiroshi Haruna , Kazushige Kohno , Eiji Seki , Yoshiaki Kumashiro
发明人: Hiroshi Haruna , Kazushige Kohno , Eiji Seki , Yoshiaki Kumashiro
IPC分类号: H01M4/58
CPC分类号: H01M10/0525 , H01M10/0569 , H01M10/446 , H01M2300/004 , Y10T29/4911
摘要: To provide a lithium secondary battery which suppresses a decrease in the charge and discharge efficiency during a battery storage test and which is excellent in maintaining the battery capacity after the storage test. There are disclosed a nonaqueous lithium battery, comprising: a positive electrode active material comprising a lithium-containing oxide capable of inserting and detaching lithium ions; a negative electrode active material comprising a carbon material capable of inserting and detaching lithium ions; and an electrolytic solution containing a lithium ion, wherein the surface of the negative electrode active material after initializing charging is coated with a compound derived from vinylene carbonate, and wherein a weight power density of the lithium battery is no less than 100 Wh/kg, and a method of producing a nonaqueous lithium battery comprising a step of sealing a positive electrode active material, a negative electrode active material, and a nonaqueous electrolytic solution using a sealed container, wherein a predetermined amount of vinylene carbonate is added into the nonaqueous electrolytic solution, and the initializing charging is carried out to form a coating on the surface of the negative electrode active material, the coating being derived from the vinylene carbonate.
摘要翻译: 提供一种锂二次电池,其抑制电池存储试验期间的充放电效率的降低,并且在保存试验后保持电池容量优异。 公开了一种非水锂电池,其包括:正极活性物质,其包含能够插入和分离锂离子的含锂氧化物; 包含能够插入和分离锂离子的碳材料的负极活性材料; 以及含有锂离子的电解液,其中,初始化充电后的负极活性物质的表面涂布有碳酸亚乙烯酯衍生的化合物,其中锂电池的重量功率密度为100Wh / kg以上, 以及一种制造非水锂电池的方法,包括使用密封容器密封正极活性物质,负极活性物质和非水电解液的步骤,其中将预定量的碳酸亚乙烯酯加入到非水电解液 ,并进行初始化充电以在负极活性材料的表面上形成涂层,该涂层源自碳酸亚乙烯酯。
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公开(公告)号:US20050153173A1
公开(公告)日:2005-07-14
申请号:US11030976
申请日:2005-01-10
申请人: Yoshiaki Kumashiro , Juichi Arai , Mituru Kobayashi , Eiji Hoshi
发明人: Yoshiaki Kumashiro , Juichi Arai , Mituru Kobayashi , Eiji Hoshi
IPC分类号: H01G9/00 , H01G11/06 , H01G11/08 , H01G11/10 , H01G11/22 , H01G11/24 , H01G11/30 , H01G11/38 , H01G11/42 , H01G11/46 , H01G11/58 , H01G11/62 , H01G11/78 , H01G11/86 , H01M2/02 , H01M4/13 , H01M4/32 , H01M4/36 , H01M4/38 , H01M4/44 , H01M4/56 , H01M4/62 , H01M10/00 , H01M10/05 , H01M10/052 , H01M10/0565 , H01M10/0566 , H01M10/06 , H01M10/30 , H01M10/34 , H01M10/44 , H01M14/00 , H01M16/00 , H01M4/52
CPC分类号: H01G9/155 , H01M2/0222 , H01M4/13 , H01M4/131 , H01M4/366 , H01M4/383 , H01M4/48 , H01M4/505 , H01M4/525 , H01M4/58 , H01M4/62 , H01M4/623 , H01M10/00 , H01M10/0525 , H01M10/0565 , H01M10/06 , H01M10/30 , H01M10/345 , H01M10/44 , H01M14/00 , Y02E60/13 , Y02T10/7011 , Y02T10/7022
摘要: An energy device having high input-output performance, in particular being excellent in low temperature performance. An energy device characterized by storing and discharging electric energy by both a faradaic reaction mechanism wherein mainly the oxidation state of an active material changes and electric charge transfers inside said active material and a non-faradaic reaction mechanism wherein mainly ions are physically absorbed and desorbed on the surface of an active material and resultantly electric charge is accumulated and discharged. Further, output performance at a low temperature is improved by providing an energy device characterized by storing and discharging electric energy by at least two kinds of reaction mechanisms that show low and high reaction rates respectively in faradaic reaction wherein mainly the oxidation state of an active material changes and electric charge transfers to said active material through an electrode interface. Furthermore, an energy device characterized by storing and discharging electric energy by at least two kinds of reaction mechanisms that show low and high reaction rates respectively in faradaic reaction wherein mainly the oxidation state of an active material changes and electric charge transfers to said active material through an electrode interface.
摘要翻译: 具有高输入输出性能的能量装置,特别是低温性能优异。 一种能量装置,其特征在于通过法拉第反应机构储存和释放电能,其中主要是活性材料的氧化态发生变化,电荷在所述活性材料内部转移,而非法拉第反应机理主要是离子被物理吸收和解吸附在 活性物质的表面和由此导致的电荷被积聚并排出。 此外,通过提供一种能量装置,通过提供特征在于通过至少两种反应机理存储和释放电能的能量装置,分别在法拉第反应中显示低和高反应速率,其中主要是活性物质的氧化态 通过电极接口将变化和电荷转移到所述活性材料。 此外,一种能量装置,其特征在于通过至少两种反应机理储存和释放电能,所述反应机理分别在反应反应中显示低和高的反应速率,其中主要是活性物质的氧化态发生变化,电荷转移到所述活性物质,通过 电极接口。
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公开(公告)号:US20070003838A1
公开(公告)日:2007-01-04
申请号:US11206186
申请日:2005-08-18
CPC分类号: H01G9/22 , H01G9/035 , H01G11/02 , H01G11/06 , H01G11/56 , H01G11/62 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/366 , H01M4/505 , H01M4/525 , H01M4/587 , H01M4/602 , H01M10/052 , H01M10/0525 , H01M10/0565 , H01M10/0568 , H01M10/0569 , H01M2300/0025 , H01M2300/0085 , H01M2300/0091 , Y02E60/13 , Y02T10/7011 , Y02T10/7022
摘要: An energy device with high input/output characteristics and superior characteristics particularly at low temperature. The energy device stores and releases electric energy by means of a faradaic reaction mechanism based mainly on the alteration of the oxidation state of an active material whereby charges move into the active material, and a non-faradaic reaction based mainly on the physical adsorption and separation of ions on the surface of an active material for storing or releasing charges. The output characteristics at low temperature are improved by employing at least two kinds of faradaic reaction mechanism, namely, one with low reaction rate and the other with high reaction rate, which is mainly based on the alteration of the oxide state of an active material for the transfer of charges into the active material via an electrode interface.
摘要翻译: 具有高输入/输出特性和优异特性的能量装置,特别是在低温下。 能量装置通过法拉第反应机理储存和释放电能,这主要是由于活性物质的氧化态的改变,其中电荷移动到活性物质中,而主要以物理吸附和分离为主的非法拉第反应 的离子用于存储或释放电荷的活性材料的表面上。 通过采用至少两种法拉第反应机理,即反应速度低,反应速度快的另一种反应机理,可以提高低温输出特性,主要是基于活性物质的氧化态变化, 通过电极界面将电荷转移到活性材料中。
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公开(公告)号:US20050250014A1
公开(公告)日:2005-11-10
申请号:US11060478
申请日:2005-02-18
申请人: Yoshiaki Kumashiro , Juichi Arai , Mituru Kobayasi
发明人: Yoshiaki Kumashiro , Juichi Arai , Mituru Kobayasi
IPC分类号: H01M2/20 , H01M2/10 , H01M4/13 , H01M4/131 , H01M4/505 , H01M4/525 , H01M4/587 , H01M4/66 , H01M6/14 , H01M10/05 , H01M10/0525 , H01M10/0565 , H01M10/0568 , H01M10/42
CPC分类号: H01M4/663 , H01M4/13 , H01M4/505 , H01M4/525 , H01M4/587 , H01M4/667 , H01M10/0525 , H01M10/0565 , H01M10/0567 , H01M2004/021 , H01M2004/027 , H01M2004/028 , H01M2010/4292 , Y02T10/7011
摘要: An energy storage device comprising a positive active material layer having a positive active material capable of inserting and releasing lithium ions, a positive electrode plate having a layer capable of effecting non-faradic like reaction upon physical adsorption and desorption of the ions to accumulate and discharge charges, and a negative plate having a negative active material layer made of carbonaceous material that is capable of absorbing and releasing mainly lithium in the ionized state in a collector, and an insulator layer for electrically insulating the positive electrode plate from the negative electrode plate that causes only mobile ions permeate.
摘要翻译: 一种储能装置,其特征在于,具有能够插入和释放锂离子的正极活性物质的正极活性物质层,具有能够在离子的物理吸附和解吸附之后能够实现非反应性反应的层的正极板 电荷以及负极板,其具有能够主要以集电体的离子化状态吸收主要为锂的碳质材料制成的负极活性物质层,以及将正极板与负极板电绝缘的绝缘体层, 导致仅移动离子渗透。
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