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公开(公告)号:US4360572A
公开(公告)日:1982-11-23
申请号:US235463
申请日:1981-02-18
申请人: David L. Chua , Kurt F. Garoutte , Louis L. Levy
发明人: David L. Chua , Kurt F. Garoutte , Louis L. Levy
CPC分类号: H01M6/14 , Y10T29/49108
摘要: An electrochemical cell having a lithium anode, a thionyl chloride depolarizer and a sulphur dioxide passivation control agent which further includes having the pressure relieved to substantially reduce the internal pressure of the cell. The internal cell pressure is relieved by venting for sufficient time at an elevated temperature to reduce the internal cell pressure to less than five psi at room temperature, preferably by a plurality of venting cycles and a temperature ranging from room temperature to the elevated temperature. Normally, the elevated temperature ranges from at least 100.degree. F. to greater than 150.degree. F.
摘要翻译: 一种具有锂阳极,亚硫酰氯去极化剂和二氧化硫钝化控制剂的电化学电池,其进一步包括具有释放压力以显着降低电池的内部压力。 通过在升高的温度下排放足够的时间来减轻内部电池压力,以将室内压力降低到室温下的小于5psi,优选通过多个排气循环以及从室温到高温的温度。 通常,升温范围从至少100°F到大于150°F。
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公开(公告)号:US4822700A
公开(公告)日:1989-04-18
申请号:US185586
申请日:1988-04-22
CPC分类号: H01M4/96 , H01M6/14 , H01M2200/00 , H01M2200/10 , H01M4/62
摘要: Exothermic reactions at elevated temperatures in high rate non-aqueous active metal electrochemical cells which include an alkali metal anode, an electrolyte system including an electrolyte salt dissolved in a non-aqueous solvent depolarizer, by the provision of a reaction limiting positive electrode material which includes an amount of carbon black, an amount of binder and an amount of ceramic material, said ceramic material being substantially unreactive with other cell species below a predetermined temperature but capable of reacting to form substantially inactive products with the metal of the anode material at or above the predetermined temperature.
摘要翻译: 通过提供反应限制性的正极材料,其包括碱金属阳极,包括溶解在非水溶剂去极化剂中的电解质盐的电解质体系的高速非水活性金属电化学电池中的升高温度下的放热反应, 一定量的炭黑,一定量的粘合剂和一定量的陶瓷材料,所述陶瓷材料与预定温度以下的其它细胞种类基本上不反应,但是能够与阳极材料的金属在等于或高于 预定温度。
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公开(公告)号:US5352546A
公开(公告)日:1994-10-04
申请号:US29080
申请日:1993-03-10
申请人: David L. Chua , Hsiu-Ping Lin , Rebecca A. Smith
发明人: David L. Chua , Hsiu-Ping Lin , Rebecca A. Smith
CPC分类号: H01M10/0563 , H01M6/50
摘要: An active metal non-aqueous electrochemical cell includes an anode selected from lithium metal and intercalated lithium compounds, an electrolyte system consisting essentially of an SO.sub.2 solvent containing an amount of electrolyte salt, and a solid liquid or gaseous cathode active material selected from a class of materials which are reduced in preference to SO.sub.2, wherein the amount of cathode material is generally limiting with respect to the desired discharge reaction.
摘要翻译: 活性金属非水电化学电池包括选自锂金属和插层的锂化合物的阳极,主要由含有一定量电解质盐的SO 2溶剂组成的电解质体系,以及选自以下的固体液体或气态阴极活性材料: 相对于SO 2而言优选减少的材料,其中阴极材料的量通常对于所需的放电反应是有限制的。
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公开(公告)号:US4598029A
公开(公告)日:1986-07-01
申请号:US786931
申请日:1985-10-11
申请人: Narayan Doddapaneni , David L. Chua
发明人: Narayan Doddapaneni , David L. Chua
CPC分类号: H01M2/1646 , H01M6/14 , H01M2200/00 , H01M2200/30 , H01M2300/002
摘要: Problems associated with voltage reversal hazards in high energy density non-aqueous electrochemical cells are prevented for all except extremely high discharge rates by the provision of a safety separator which is sufficiently porous to allow normal cell operation in the forward direction but which prevents voltage reversal in all but the most extreme cases. The separator may take the form of a thin sheet of ceramic material which need not contact either the anode or the cathode but which forms an ion-permeable mechanical barrier separating the electrodes while allowing normal cell operation.
摘要翻译: 在高能量密度非水电化学电池中与电压反转危害相关的问题通过提供足够多孔的安全分离器来防止所有这些,除非是极高的排放速率,以允许正向电池在正向运行,而且防止电压反转 除了最极端的情况之外。 分离器可以采取不需要接触阳极或阴极的陶瓷材料薄片的形式,而是形成分离电极的离子可渗透的机械屏障,同时允许正常的电池操作。
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公开(公告)号:US4309490A
公开(公告)日:1982-01-05
申请号:US731064
申请日:1976-10-08
申请人: David L. Chua , William C. Merz
发明人: David L. Chua , William C. Merz
IPC分类号: H01M6/14
CPC分类号: H01M6/14
摘要: An electrochemical cell having substantially longer storage life comprising a lithium anode, a thionyl chloride depolarizer and solvent, a lithium aluminum chloride electrolyte salt and a quantity of sulfur dioxide admixed in the solvent in an amount sufficient to regulate the growth of lithium chloride crystals formed on the lithium anode. This amount of sulfur dioxide is preferrably sufficient to cause the ratio of moles of lithium aluminum chloride to moles of sulfur dioxide to range from 0.9 to 1.5. A most preferred range is from 1.0 to 1.2.
摘要翻译: 具有显着更长的储存寿命的电化学电池,其包含锂阳极,亚硫酰氯去极化剂和溶剂,氯化铝锂电解质盐和一定数量的二氧化硫,其量足以调节在溶剂中形成的氯化锂晶体的生长 锂阳极。 这种二氧化硫的量优选足以使氯化锂铝的摩尔数与二氧化硫的摩尔数的比例在0.9至1.5的范围内。 最优选的范围为1.0至1.2。
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公开(公告)号:US5756232A
公开(公告)日:1998-05-26
申请号:US719992
申请日:1996-09-25
申请人: Charles J. Kelly , David L. Chua
发明人: Charles J. Kelly , David L. Chua
CPC分类号: H01M4/13 , H01M4/70 , H01M4/587 , H01M4/74 , H01M8/0273
摘要: An improved anode for use in non-aqueous active metal secondary cells include a substrate current collector, a layer of active metal anode material on said current collector and a relatively narrow peripheral band of material capable of accepting reversible insertion of the active metal for capturing dendrite material formed in charging the anode on said current collector surrounding said layer of active metal anode material.
摘要翻译: 用于非水活性金属二次电池的改进的阳极包括基底集电器,所述集电器上的活性金属阳极材料层和能够接受用于捕获枝晶的活性金属的可逆插入的相对窄的周边带材料 在对围绕所述活性金属阳极材料层的所述集电体上的阳极充电中形成的材料。
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公开(公告)号:US5240790A
公开(公告)日:1993-08-31
申请号:US29082
申请日:1993-03-10
申请人: David L. Chua , Hsiu-Ping Lin
发明人: David L. Chua , Hsiu-Ping Lin
IPC分类号: H01M4/50 , H01M4/505 , H01M4/52 , H01M4/525 , H01M10/0565
CPC分类号: H01M10/0565 , H01M4/505 , H01M4/525
摘要: A primary or secondary electrochemical cell includes an anode containing lithium when in a charged state, a relatively solid gelled electrolyte system including an amount of polyacrylonitrile (PAN), an amount of solvent and plasticizer that includes .gamma.-butyrolactone (.gamma.-BL) and an amount of lithium electrolyte salt, preferably a combination of LiAsF.sub.6 and LiBF.sub.4, and a cathode having a cathode active material selected from transition metal oxides and lithium transition metal oxide intercalation compounds.
摘要翻译: 主要或次要电化学电池包括在带电状态下含有锂的阳极,包含一定量的聚丙烯腈(PAN)的相对固体凝胶电解质体系,一定量的包含γ-丁内酯(γ-BL)的溶剂和增塑剂,以及 锂电解质盐的量,优选LiAsF 6和LiBF 4的组合,以及具有选自过渡金属氧化物和锂过渡金属氧化物插入化合物的正极活性物质的阴极。
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公开(公告)号:US4752540A
公开(公告)日:1988-06-21
申请号:US58296
申请日:1987-06-05
申请人: David L. Chua , William J. Eppley , Gerald F. Hoff
发明人: David L. Chua , William J. Eppley , Gerald F. Hoff
CPC分类号: H01M2/1282 , H01M2/0202 , H01M2/1235 , H01M6/46 , H01M2/1241 , H01M2200/00 , H01M2200/10
摘要: A container for a non-aqueous electrochemical cell is molded from a partially hologenated alkaline polymer and has integral electrical leads and vents.
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