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    Lithium-based active materials and preparation thereof
    21.
    发明授权
    Lithium-based active materials and preparation thereof 有权
    锂基活性物质及其制备方法

    公开(公告)号：US06723470B2

    公开(公告)日：2004-04-20

    申请号：US09908480

    申请日：2001-07-18

    Applicant: Jeremy Barker ,  M. Yazid Saidi ,  Jeffrey L. Swoyer

    Inventor： Jeremy Barker ,  M. Yazid Saidi ,  Jeffrey L. Swoyer

    IPC: H01M458

    CPC classification number: H01M4/136 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/028

    Abstract: The invention provides novel lithium-mixed metal materials which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode formed from the novel lithium-mixed metal materials. Methods for making the novel lithium-mixed metal materials and methods for using such lithium-mixed metal materials in electrochemical cells are also provided. The lithium-mixed metal materials comprise lithium and at least one other metal besides lithium. Preferred materials are lithium-mixed metal phosphates which contain lithium and two other metals besides lithium.

    Abstract translation: 本发明提供新的锂混合金属材料，其在电化学相互作用时释放锂离子，并且能够可逆地循环锂离子。 本发明提供一种可再充电锂电池，其包括由新型锂混合金属材料形成的电极。 还提供了制备新的锂复合金属材料的方法和在电化学电池中使用这种锂混合金属材料的方法。 锂混合金属材料除锂之外还包含锂和至少一种其它金属。 优选的材料是除了锂之外还含有锂和另外两种金属的锂混合金属磷酸盐。

    Active material having extended cycle life
    23.
    发明授权
    Active material having extended cycle life 有权
    活性物质具有延长的循环寿命

    公开(公告)号：US06468695B1

    公开(公告)日：2002-10-22

    申请号：US09376914

    申请日：1999-08-18

    Applicant: Jeremy Barker

    Inventor： Jeremy Barker

    IPC: H01M450

    CPC classification number: H01M4/505 ,  C01G45/1242 ,  C01P2002/32 ,  C01P2002/77 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/1391 ,  H01M10/0525

    Abstract: In one embodiment, the invention provides a novel composition which is stabilized against decomposition when used as an active material for an electrochemical cell. The active material of the present invention comprises particles of spinel lithium manganese oxide (LMO) enriched with lithium by a decomposition product of lithium hydroxide forming a part of each of the LMO particles. The spinel LMO product formed by the decomposition of lithium hydroxide in the presence of the LMO is characterized by a reduced surface area and increased capacity retention (reduced capacity fading) as compared to the initial, non-treated, non-enriched spinel. In another aspect, the treated spinel LMO product is combined with lithium carbonate in a cathode mixture.

    Abstract translation: 在一个实施方案中，本发明提供了当用作电化学电池的活性材料时稳定的抗分解的新型组合物。 本发明的活性物质包含由氢氧化锂的分解产物富含锂的尖晶石锂锰氧化物（LMO），形成每种LMO颗粒的一部分。 在LMO存在下通过氢氧化锂分解形成的尖晶石LMO产物的特征在于与初始的未处理的非富集尖晶石相比，表面积减小并且容量保持率（降低的容量衰减）降低。 另一方面，将经处理的尖晶石LMO产物与阴极混合物中的碳酸锂混合。

    Thermally stable, highly conductive salt
    25.
    发明授权
    Thermally stable, highly conductive salt 失效
    热稳定，高导电性盐

    公开(公告)号：US6015639A

    公开(公告)日：2000-01-18

    申请号：US16608

    申请日：1998-01-30

    Applicant: Feng Gao ,  Jeremy Barker ,  Peikang Liu

    Inventor： Feng Gao ,  Jeremy Barker ,  Peikang Liu

    IPC: H01B1/12 ,  H01M10/0525 ,  H01M10/0568 ,  H01M6/18

    CPC classification number: H01M10/0568 ,  H01B1/122 ,  H01M10/0525

    Abstract: The invention provides a new family of compounds and a method of making the compounds. The new compounds are useful as ion conductive salts, and particularly useful as salts for batteries. The compounds of the invention are prepared from three principal reagents, bis (trifluoromethanesufonyl) methane (CF.sub.3 SO.sub.2).sub.2 CH.sub.2 ; benzoyl chloride; and pyridine which facilitates reaction and then is removed. A precursor sodium salt (CF.sub.3 SO.sub.2).sub.2 CHNa is first prepared. Then, equimolar amounts of the precursor sodium salt and pyridine are dissolved in anhydrous acetonitrile. A stoichiometric amount of the selected substitute benzoyl chloride is then added drop by drop. After addition of Li.sub.3 PO.sub.4, there is pyridine release and formation of the product of the aforesaid two reagents. In the benzene ring, R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are each identical or different and are each independently selected from hydrogen and an electron withdrawing substituent.

    Abstract translation: 本发明提供一种新的化合物族和一种制备该化合物的方法。 新化合物可用作离子导电盐，并且特别用作电池的盐。 本发明的化合物由三种主要试剂，二（三氟甲磺酰基）甲烷（CF 3 SO 2）2 CH 2; 苯甲酰氯; 和吡啶，这有助于反应然后被除去。 首先制备前体钠盐（CF 3 SO 2）2 CHNa。 然后将等摩尔量的前体钠盐和吡啶溶于无水乙腈中。 然后逐滴加入化学计量的所选择的替代苯甲酰氯。 添加Li3PO4后，存在吡啶释放并形成上述两种试剂的产物。 在苯环中，R 1，R 2，R 3，R 4和R 5各自相同或不同，各自独立地选自氢和吸电子取代基。

    Stabilized electrolyte for electrochemical cells and batteries
    26.
    发明授权
    Stabilized electrolyte for electrochemical cells and batteries 失效
    用于电化学电池和电池的稳定电解质

    公开(公告)号：US5922494A

    公开(公告)日：1999-07-13

    申请号：US843203

    申请日：1997-04-14

    Applicant: Jeremy Barker ,  Feng Gao

    Inventor： Jeremy Barker ,  Feng Gao

    IPC: H01M2/16 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0569 ,  H01M10/40

    CPC classification number: H01M10/0569 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/0525 ,  H01M2/1613 ,  H01M2/1653

    Abstract: An electrochemical cell comprising a first electrode; a counter-electrode which forms an electrochemical couple with the first electrode; and an electrolyte comprising a solvent and a solute. The solvent comprises a dialkyl carbonate of the formula R'OCOOR" where each of R' and R' represents an alkyl, and having at least one of R' and R" selected from the group consisting of non-linear, branched alkyls where R' and R" are preferably different from one another.

    Abstract translation: 一种电化学电池，包括第一电极; 与第一电极形成电化学耦合的对电极; 以及包含溶剂和溶质的电解质。 溶剂包括式R'OCOOR“的二烷基碳酸酯，其中R'和R'各自表示烷基，并且具有选自非直链，支链烷基的R'和R”中的至少一个 其中R'和R“优选彼此不同。

    Propylene carbonate based electrolyte for lithium ion electrochemical cell
    28.
    发明授权
    Propylene carbonate based electrolyte for lithium ion electrochemical cell 失效
    用于锂离子电化学电池的碳酸亚丙酯基电解质

    公开(公告)号：US5780182A

    公开(公告)日：1998-07-14

    申请号：US742398

    申请日：1996-11-04

    Applicant: Jeremy Barker ,  Feng Gao

    Inventor： Jeremy Barker ,  Feng Gao

    IPC: H01M4/58 ,  H01M10/40

    CPC classification number: H01M10/0569 ,  H01M10/052 ,  H01M10/0565 ,  H01M4/587 ,  Y10T29/49108

    Abstract: Non-aqueous solid electrochemical cells with improved performance can be fabricated by employing intercalation based carbon anodes comprising graphite, coke, or mixtures thereof, and an electrolyte having an electrolyte solvent formed of propylene carbonate and 4,5-dichloroethylene carbonate. The cells are particularly suited for low temperature applications.

    Abstract translation: 具有改进性能的非水固体电化学电池可以通过使用包含石墨，焦炭或其混合物的基于嵌入的碳阳极和具有由碳酸丙烯酯和4,5-二氯乙烯碳酸酯形成的电解质溶剂的电解质来制造。 这些电池特别适用于低温应用。

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