Electrolyte for lithium-sulphur batteries and lithium-sulphur batteries using the same
    1.
    发明申请
    Electrolyte for lithium-sulphur batteries and lithium-sulphur batteries using the same 有权
    锂硫电池用电解液和使用该锂硫电池的锂硫电池

    公开(公告)号:US20060121355A1

    公开(公告)日:2006-06-08

    申请号:US11290825

    申请日:2005-12-01

    Abstract: An electrolyte for a lithium-sulphur battery, the electrolyte comprising a solution of at least one electrolyte salt in at least two aprotic solvents. The components of the solution may be selected so that the solution is eutectic or close to eutectic. Also disclosed is a lithium-sulphur battery including such an electrolyte. By using a eutectic mixture, the performance of the electrolyte and the battery at low temperatures is much improved.

    Abstract translation: 一种用于锂硫电池的电解质,所述电解质包含至少两种非质子传递溶剂中至少一种电解质盐的溶液。 可以选择溶液的组分,使得溶液是共晶的或接近共晶的。 还公开了包含这种电解质的锂硫电池。 通过使用共晶混合物,电解质和电池在低温下的性能大大提高。

    Cell or battery with a metal lithium electrode and electrolytes therefor
    4.
    发明申请
    Cell or battery with a metal lithium electrode and electrolytes therefor 审中-公开
    具有金属锂电极的电池或电池及其电解质

    公开(公告)号:US20080038645A1

    公开(公告)日:2008-02-14

    申请号:US11889334

    申请日:2007-08-10

    CPC classification number: H01M4/40 H01M10/052 H01M10/0567

    Abstract: An electrolyte for rechargeable batteries with a negative electrode of lithium or lithium containing alloys comprising: one or several non-aqueous organic solvents, one or several lithium salts and one or several additives increasing the cycle life of the lithium electrode. The electrolyte solution may comprise one or several solvents selected from the group comprising: tetrahydrofurane, 2-methyltetrahydrofurane, dimethylcarbonate, diethylcarbonate, ethylmethylcarbonate, methylpropylcarbonate, methylpropylpropyonate, ethylpropylpropyonate, methylacetate, ethylacetate, propylacetate, dimetoxyethane, 1,3-dioxalane, diglyme (2-methoxyethil ether), tetraglyme, ethylenecarbonate, propylencarbonate, γ-butyrolactone, and sulfolane. The electrolyte solution may further comprise at least one salt or several salts selected from the group consisting of lithium hexafluorophosphate (LiPF6), lithium hexafluoroarsenate (LiAsF6), lithium perchlorate (LiClO4), lithium sulfonylimid trifluoromethane (LiN(CF3SO2)2)) and lithium trifluorosulfonate (CF3SO3Li) or other lithium salts or salts of another alkali metal or a mixture thereof. Also disclosed is an electrochemical cell or battery with an anode of metallic lithium or a lithium-containing alloy, and such an electrolyte.

    Abstract translation: 一种具有含锂或锂的合金负极的可再充电电池的电解液,包括:一种或多种非水有机溶剂,一种或多种锂盐和一种或多种添加剂,其增加锂电极的循环寿命。 电解质溶液可以包含选自四氢呋喃,2-甲基四氢呋喃,碳酸二甲酯,碳酸二乙酯,乙基甲基碳酸酯,碳酸甲基丙酯,丙基丙基丙酸甲酯,丙基丙酸乙酯,乙酸甲酯,乙酸乙酯,乙酸丙酯,二甲氧基乙烷,1,3-二氧杂环戊烷,二甘醇二 - 甲氧基乙醚),四甘醇二甲醚,碳酸亚乙酯,丙烯碳酸酯,γ-丁内酯和环丁砜。 所述电解质溶液还可以包含选自六氟磷酸锂(LiPF 6),六氟砷酸锂(LiAsF 6 N),高氯酸锂(LiCl 6 N 6) LiClO 4 S),磺酰亚胺三氟甲磺酸锂(LiN(CF 3 SO 2)2))和三氟磺酸锂( CF 3 3 SO 3 Li)或其它碱金属的锂盐或盐或其混合物。 还公开了具有金属锂或含锂合金的阳极的电化学电池或电池,以及这种电解质。

    Lithium-sulphur battery with high specific energy
    6.
    发明申请
    Lithium-sulphur battery with high specific energy 审中-公开
    具有高比能量的锂硫电池

    公开(公告)号:US20070072076A1

    公开(公告)日:2007-03-29

    申请号:US11526876

    申请日:2006-09-26

    Abstract: A battery or chemical source of electric energy may include a positive electrode including sulphur or sulphur-based organic compounds, sulphur-based polymeric compounds or sulphur-based inorganic compounds as a depolarizer, a negative electrode made of metallic lithium or lithium-containing alloys, and an electrolyte including a solution of at least one salt in at least one aprotic solvent. In order to increase the specific energy, the chemical source of electric energy may be configured to generate soluble polysulphides in the electrolyte during discharge, and the quantities of sulphur in the depolariser and the volume of electrolyte may be selected such that, after discharge of the cathode in a first stage (to a potential of 2.1-1.9V), the concentration of soluble lithium polysulphides in the electrolyte is at least 70% of a saturation concentration of the lithium polysulphides in the electrolyte.

    Abstract translation: 电池或化学电源可以包括包含硫或硫基有机化合物的正电极,作为去极化剂的硫基聚合物或硫基无机化合物,由金属锂或含锂合金制成的负极, 和包含至少一种盐在至少一种非质子溶剂中的溶液的电解质。 为了增加比能量,电能的化学源可以被配置为在排出期间在电解质中产生可溶性多硫化物,并且可以选择去极化器中的硫的量和电解质的体积,使得在排出 阴极在第一阶段(电位为2.1-1.9V),电解质中可溶性多硫化硫的浓度至少为电解液中多硫化锂的饱和浓度的70%。

    Lithium-sulphur battery with high specific energy
    8.
    发明授权
    Lithium-sulphur battery with high specific energy 有权
    具有高比能量的锂硫电池

    公开(公告)号:US08647769B2

    公开(公告)日:2014-02-11

    申请号:US12787006

    申请日:2010-05-25

    Abstract: The invention provides for a method of discharging a chemical source of electric energy in two stages. The chemical source of electric energy comprises a positive electrode (cathode) including sulphur or sulphur-based organic compounds, sulphur-based polymeric compounds or sulphur-based inorganic compounds as a depolarizer, a negative electrode (anode) made of metallic lithium or lithium-containing alloys, and an electrolyte comprising a solution of at least one salt in at least one aprotic solvent. The method comprises the steps of configuring the chemical source of electric energy to generate soluble polysulphides in the electrolyte during a first stage of a two stage discharge process, and selecting the quantity of sulphur in the depolariser and the volume of electrolyte in a way that after the first stage discharge of the cathode, the concentration of the soluble polysulphides in the electrolyte is at least seventy percent (70%) of a saturation concentration of the polysulphides in the electrolyte.

    Abstract translation: 本发明提供了两级放电电能化学源的方法。 电能的化学源包括包含硫或硫基有机化合物的正电极(阴极),作为去极化剂的硫基聚合化合物或硫基无机化合物,由金属锂或锂基有机化合物制成的负极(阳极) 包含至少一种非质子传递溶剂中的至少一种盐的溶液的电解质。 该方法包括以下步骤:在两阶段放电过程的第一阶段期间配置电能的化学源以产生电解质中的可溶性多硫化物,并且以如下方式选择去极化器中的硫的量和电解质的体积 阴极的第一阶段放电,电解质中可溶性多硫化物的浓度为电解液中多硫化物饱和浓度的至少百分之七十(70%)。

    LITHIUM-SULPHUR BATTERY WITH HIGH SPECIFIC ENERGY
    10.
    发明申请
    LITHIUM-SULPHUR BATTERY WITH HIGH SPECIFIC ENERGY 有权
    具有高特定能源的锂硫电池

    公开(公告)号:US20100231168A1

    公开(公告)日:2010-09-16

    申请号:US12787006

    申请日:2010-05-25

    Abstract: The invention provides for a method of discharging a chemical source of electric energy in two stages. The chemical source of electric energy comprises a positive electrode (cathode) including sulphur or sulphur-based organic compounds, sulphur-based polymeric compounds or sulphur-based inorganic compounds as a depolarizer, a negative electrode (anode) made of metallic lithium or lithium-containing alloys, and an electrolyte comprising a solution of at least one salt in at least one aprotic solvent. The method comprises the steps of configuring the chemical source of electric energy to generate soluble polysulphides in the electrolyte during a first stage of a two stage discharge process, and selecting the quantity of sulphur in the depolariser and the volume of electrolyte in a way that after the first stage discharge of the cathode, the concentration of the soluble polysulphides in the electrolyte is at least seventy percent (70%) of a saturation concentration of the polysulphides in the electrolyte.

    Abstract translation: 本发明提供了两级放电电能化学源的方法。 电能的化学源包括包含硫或硫基有机化合物的正电极(阴极),作为去极化剂的硫基聚合化合物或硫基无机化合物,由金属锂或锂基有机化合物制成的负极(阳极) 包含至少一种非质子传递溶剂中的至少一种盐的溶液的电解质。 该方法包括以下步骤:在两阶段放电过程的第一阶段期间配置电能的化学源以产生电解质中的可溶性多硫化物,并且以如下方式选择去极化器中的硫的量和电解质的体积 阴极的第一阶段放电,电解质中可溶性多硫化物的浓度为电解液中多硫化物饱和浓度的至少百分之七十(70%)。

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