Lithium secondary cell and its nonaqueous electrolyte
    41.
    发明申请
    Lithium secondary cell and its nonaqueous electrolyte 有权
    锂二次电池及其非水电解质

    公开(公告)号:US20060246356A1

    公开(公告)日:2006-11-02

    申请号:US10567902

    申请日:2004-08-09

    IPC分类号: H01M10/40 H01M4/58 H01M4/48

    摘要: The invention provides a lithium secondary battery which is excellent in long-term cycle property and in battery characteristics, such as electric capacity and storage property, and a nonaqueous electrolytic solution usable for such a lithium secondary battery. The present invention relates to a lithium secondary battery including a positive electrode, a negative electrode, and a nonaqueous electrolytic solution containing an electrolyte salt dissolved in a nonaqueous solvent, characterized in that the positive electrode is made of a material including a lithium compound oxide, in that the negative electrode is made of a material including graphite, and in that the nonaqueous electrolytic solution contains dialkyl oxalate and further contains vinylene carbonate and/or 1,3-propanesultone, and a nonaqueous electrolytic solution for use in such a battery.

    摘要翻译: 本发明提供一种锂电池,该锂二次电池具有优异的长期循环性能和电容特性以及蓄电性等电池特性,以及可用于这种锂二次电池的非水电解液。 本发明涉及一种锂二次电池,其包括正极,负极和含有溶解在非水溶剂中的电解质盐的非水电解液,其特征在于,所述正极由包含锂复合氧化物的材料制成, 由于负极由包括石墨的材料制成,并且非水电解液含有草酸二烷基酯,还含有碳酸亚乙烯酯和/或1,3-丙磺酸内酯,以及用于这种电池的非水电解液。

    Nonaqueous electrolytic solution and electrochemical device using the same
    44.
    发明授权
    Nonaqueous electrolytic solution and electrochemical device using the same 有权
    非水电解液和电化学装置使用相同

    公开(公告)号:US09230746B2

    公开(公告)日:2016-01-05

    申请号:US13992106

    申请日:2011-12-05

    摘要: The object of the present invention is to provide a nonaqueous electrolytic solution that can improve the electrochemical properties in a broad temperature range and an electrochemical device using the same. A nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, wherein the nonaqueous solvent includes 0.1 to 30% by volume of a fluorine atom-containing cyclic carbonate, and further the nonaqueous electrolytic solution includes 0.001 to 5% by mass of a branched dinitrile compound in which the main chain of an alkylene chain linking the two nitrile groups has 2 or more and 4 or less of the carbon number.

    摘要翻译: 本发明的目的是提供一种能够在宽的温度范围内提高电化学性能的非水电解液和使用其的电化学装置。 通过将电解质盐溶解在非水溶剂中而制备的非水电解液,其中,所述非水溶剂含有0.1〜30体积%的含氟原子的环状碳酸酯,另外,所述非水电解液包含0.001〜5质量% 支链二腈化合物,其中连接两个腈基的亚烷基链的主链具有2以上且4以下的碳数。

    Nonaqueous electrolyte solution, electrochemical element using same, and 1,2-dioxypropane compound used in same
    45.
    发明授权
    Nonaqueous electrolyte solution, electrochemical element using same, and 1,2-dioxypropane compound used in same 有权
    非水电解液,使用该电解液的电化学元件,及其中使用的1,2-二氧代丙烷化合物

    公开(公告)号:US09203113B2

    公开(公告)日:2015-12-01

    申请号:US13634006

    申请日:2011-03-24

    摘要: An object of the present invention is to provide a nonaqueous electrolytic solution capable of improving low-temperature load characteristics after high temperature charging storage, an electrochemical element using it, and a 1,2-dioxypropane compound used for it.The nonaqueous electrolytic solution of the present invention comprises an electrolyte salt dissolved in a nonaqueous solvent, and contains a 1,2-dioxypropane compound represented by the above-mentioned general formula (I). (wherein R1 and R2 each represent a hydrogen atom, or an alkyl group having from 1 to 6 carbon atoms; X1 represents a group selected from —S(═O)—, —S(═O)2—, —C(═O)—, —CR3R4—, —P(═O)(OR5)— and —SiR6R7—; R3 and R4 each represent a hydrogen atom, or an alkyl group having from 1 to 6 carbon atoms; R5 to R7 each represent an alkyl group having from 1 to 6 carbon atoms. Y1 represents an alkylsulfinyl group, an alkenylsulfinyl group, an alkynylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group, an alkenylsulfonyl group, an alkynylsulfonyl group, or an arylsulfonyl group; Z1 represents a hydrogen atom, an alkyl group, an alkylsulfinylmethyl group, an alkenylsulfinylmethyl group, an alkynylsulfinylmethyl group, an arylsulfinylmethyl group, an alkylsulfonylmethyl group, an alkenylsulfonylmethyl group, an alkynylsulfonylmethyl group, or an arylsulfonylmethyl group; provided that at least one hydrogen atom on the carbon atom of X1, Y1 and Z1 may be substituted with a halogen atom).

    摘要翻译: 本发明的目的是提供一种能够提高高温充电保存后的低温负荷特性的非水电解液,使用它的电化学元件和用于其的1,2-二氧代丙烷化合物。 本发明的非水电解液包含溶解在非水溶剂中的电解质盐,并含有上述通式(I)表示的1,2-二氧代丙烷化合物。 (其中R 1和R 2各自表示氢原子或具有1至6个碳原子的烷基; X 1表示选自-S(= O) - , - S(= O)2 - , - C(= O) - , - CR 3 R 4 - , - P(= O)(OR 5) - 和-SiR 6 R 7 - ; R 3和R 4各自表示氢原子或具有1至6个碳原子的烷基; 具有1至6个碳原子的烷基,Y1表示烷基亚磺酰基,烯基亚磺酰基,炔基亚磺酰基,芳基亚磺酰基,烷基磺酰基,链烯基磺酰基,炔基磺酰基或芳基磺酰基; Z1表示氢原子 烷基,烷基亚磺酰基甲基,烯基亚磺酰基甲基,炔基亚磺酰基甲基,芳基亚磺酰基甲基,烷基磺酰基甲基,链烯基磺酰基甲基,炔基磺酰基甲基或芳基磺酰基甲基;条件是:至少一个碳原子上的氢原子 X1,Y1和Z1可以是不同的 用卤素原子)。

    Nonaqueous electrolyte solution for lithium secondary battery and lithium secondary battery using the same
    46.
    发明授权
    Nonaqueous electrolyte solution for lithium secondary battery and lithium secondary battery using the same 有权
    用于锂二次电池的非水电解液和使用其的锂二次电池

    公开(公告)号:US08404390B2

    公开(公告)日:2013-03-26

    申请号:US12596300

    申请日:2008-04-15

    IPC分类号: H01M6/16

    摘要: The present invention provides (1) a sulfone compounds having a propargyl group, (2) a nonaqueous electrolytic solution for lithium secondary batteries, which comprises an electrolyte salt dissolved in a nonaqueous solvent and contains a sulfone compound having a specific structure that has an SO2 group with a propargyl group or a vinyl group bonding thereto, in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution, and which can prevent gas generation and is excellent in battery characteristics such as cycle property and the like, and (3) a lithium secondary battery comprising a positive electrode, a negative electrode and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains a sulfone compound having a specific structure, in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution.

    摘要翻译: 本发明提供(1)具有炔丙基的砜化合物,(2)锂二次电池用非水电解液,其包含溶解在非水溶剂中的电解质盐,并含有具有SO 2的特定结构的砜化合物 与非水电解液的重量比为0.01〜10重量%的炔丙基或与其结合的乙烯基,能够防止气体产生,并且电池特性如循环特性等优异, (3)一种锂二次电池,其包含正极,负极和溶解在非水溶剂中的电解质盐的非水电解液,其中所述非水电解液含有特定结构的砜化合物,其量为0.01 至10重量%的非水电解液。

    Lithium secondary battery and non-aqueous electrolytic solution
    47.
    发明授权
    Lithium secondary battery and non-aqueous electrolytic solution 有权
    锂二次电池和非水电解液

    公开(公告)号:US08394541B2

    公开(公告)日:2013-03-12

    申请号:US13164826

    申请日:2011-06-21

    IPC分类号: H01M6/16 H01M4/58

    摘要: The sudden generation of heat being frequently caused in the case of the overcharge of a lithium secondary cell which have a positive electrode comprising a composite metal oxide of lithium and cobalt or a composite metal oxide of lithium and nickel, a negative electrode comprising metallic lithium, a lithium alloy or a material capable of occluding and releasing lithium, and a nonaqueous electrolyte solution comprising a nonaqueous solvent and an electrolyte dissolved therein can be efficiently prevented by the addition, to the nonaqueous electrolyte solution, of an organic compound which, when the lithium secondary cell is overcharged, decomposes into a decomposition product capable of dissolving out the cobalt or nickel contained in the positive electrode and depositing it ion the negative electrode (for example, a tert-alkylbenzene derivative).

    摘要翻译: 在具有包含锂和钴的复合金属氧化物或锂或镍的复合金属氧化物的正极的锂二次电池的过充电的情况下,常常引起热的突然产生,包含金属锂的负极, 可以通过向非水电解液中添加有机化合物来有效地防止锂离子或能够吸留和释放锂的材料,以及非水溶剂和电解质溶解在其中的非水电解质溶液, 二次电池过充电,分解成能够溶解正极中所含的钴或镍的分解产物,并将其沉积在负极(例如,叔烷基苯衍生物)上。

    NON-AQUEOUS ELECTROLYTIC SOLUTION, ELECTROCHEMICAL ELEMENT USING SAME, AND ALKYNYL COMPOUND USED THEREFOR
    48.
    发明申请
    NON-AQUEOUS ELECTROLYTIC SOLUTION, ELECTROCHEMICAL ELEMENT USING SAME, AND ALKYNYL COMPOUND USED THEREFOR 有权
    非水溶性电解液,电化学元素及其使用的烷基化合物

    公开(公告)号:US20120301797A1

    公开(公告)日:2012-11-29

    申请号:US13576182

    申请日:2011-02-02

    摘要: The present invention provides an excellent nonaqueous electrolytic solution capable of improving low-temperature and high-temperature cycle properties and load characteristics after high-temperature charging storage, an electrochemical element using it, and an alkynyl compound used for it.The nonaqueous electrolytic solution of the present invention comprises containing at least one alkynyl compound represented by the following general formula (I) in an amount of from 0.01 to 10% by mass in the nonaqueous electrolytic solution. R1(O)n—X1—R2  (I) (In the formula, X1 represents a group —C(═O)—, a group —C(═O)—C(═O)—, a group —S(═O)2—, a group —P(═O) (—R3)—, or a group —X2—S(═O)2O—. R1 represents an alkenyl group, a formyl group, an alkyl group, an acyl group, an arylcarbonyl, an alkanesulfonyl group, an alkynyloxysulfonyl group, an arylsulfonyl group, a dialkylphosphoryl group, an alkyl(alkoxy)phosphoryl group, or a dialkoxyphosphoryl group; R2 represents an alkynyl group or an alkynyloxy group; R3 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an alkoxy group, an alkenyloxy group, an alkynyloxy group, or an aryloxy group; n indicates 0 or 1.

    摘要翻译: 本发明提供一种能够提高高温充电保存后的低温高温循环性能和负载特性的优异的非水电解液,使用它的电化学元件和用于其的炔基化合物。 本发明的非水电解液在非水电解液中含有0.01〜10质量%的由通式(I)表示的至少一种炔基化合物。 R 1(O)n -X 1 -R 2(I)(式中,X1表示-C(= O) - 基,-C(= O)-C(= O) - 基,-S( = O)2-,基团-P(= O)(-R 3) - 或基团-X 2 -S(= O)2 O-,R 1表示链烯基,甲酰基,烷基,酰基 基团,芳基羰基,烷磺酰基,炔氧基磺酰基,芳基磺酰基,二烷基磷酰基,烷基(烷氧基)磷酰基或二烷氧基磷酰基; R2表示炔基或炔氧基; R3表示烷基, 烯基,炔基,芳基,烷氧基,烯氧基,炔氧基或芳氧基; n表示0或1。

    Nonaqueous electrolyte secondary battery, nonaqueous electrolyte, and charging method therefor
    50.
    发明授权
    Nonaqueous electrolyte secondary battery, nonaqueous electrolyte, and charging method therefor 有权
    非水电解质二次电池,非水电解质及其充电方法

    公开(公告)号:US08026000B2

    公开(公告)日:2011-09-27

    申请号:US11656486

    申请日:2007-01-23

    IPC分类号: H01M6/04

    摘要: A nonaqueous electrolyte secondary battery of the invention has a positive electrode having a positive electrode active material, a negative electrode, and a nonaqueous electrolyte having electrolyte salt in a nonaqueous solvent. The electric potential of the positive electrode active material is 4.4 to 4.6 V relative to lithium, and the nonaqueous electrolyte contains a compound expressed by structural formula (I) below. The quantity of compound added is preferably 0.1% to 2% by mass. Also, the positive electrode active material preferably comprises a mixture of a lithium-cobalt composite oxide which is LiCoO2 containing at least both zirconium and magnesium and a lithium-manganese-nickel composite oxide that has a layer structure and contains at least both manganese and nickel. Thanks to such structure, a nonaqueous electrolyte secondary battery can be provided that is charged to charging termination potential of 4.4 to 4.6 V relative to lithium and that has enhanced overcharging safety.[Chemical Formula 1]

    摘要翻译: 本发明的非水电解质二次电池具有正极,具有正极活性物质,负极和非水电解质,在非水溶剂中具有电解质盐。 正极活性物质的电位相对于锂为4.4〜4.6V,非水电解质含有下述结构式(I)表示的化合物。 化合物的添加量优选为0.1质量%〜2质量%。 此外,正极活性物质优选包含锂 - 钴复合氧化物的混合物,其为至少含有锆和镁的两种LiCoO 2和具有层结构并且至少包含锰和镍两者的锂锰镍复合氧化物的混合物 。 由于这样的结构,可以提供非水电解质二次电池,其相对于锂充电至4.4至4.6V的充电终止电位,并且具有增强的过充电安全性。 [化学式1]