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    Methods for extending the cycle life of solid, secondary electrolytic cells during recharge of the electrolytic cells
    6.
    发明授权
    Methods for extending the cycle life of solid, secondary electrolytic cells during recharge of the electrolytic cells 失效
    延长电解池补充期间固体二次电解池循环寿命的方法

    公开(公告)号：US5500583A

    公开(公告)日：1996-03-19

    申请号：US106103

    申请日：1993-08-13

    申请人： James Buckley ,  William Masuda ,  Joseph Lundquist

    发明人： James Buckley ,  William Masuda ,  Joseph Lundquist

    IPC分类号： H01M10/44 ,  H02J7/00 ,  H02J7/10

    CPC分类号： H01M10/44 ,  H02J7/0093

    摘要： Disclosed are methods for extending the cycle life of solid, secondary electrolytic cells employing a solid electrolyte which methods comprise (a) charging the discharged electrolytic cell at a rate of from at least about 0.1 to about 0.5 milliamp per square centimeter; (b) interrupting charging step (a) and conducting a high magnitude discharge pulse in said cell of from about 10 seconds to 2 minutes in duration; and (c) reestablishing the charging rate of step (a) and maintaining this rate until the potential of the electrolytic cell increases by at least 0.5 volts.

    摘要翻译： 公开了使用固体电解质来延长固体二次电解槽的循环寿命的方法，该方法包括（a）以至少约0.1至约0.5毫安/平方厘米的速率对排出的电解池进行充电; （b）中断充电步骤（a）并在所述电池中进行大约10秒至2分钟的高幅度放电脉冲; 和（c）重新建立步骤（a）的充电速率并维持该速率，直到电解槽的电位增加至少0.5伏。

    Method of making lithium metal oxide cathode active material
    7.
    发明授权
    Method of making lithium metal oxide cathode active material 失效
    制备锂金属氧化物正极活性物质的方法

    公开(公告)号：US5520903A

    公开(公告)日：1996-05-28

    申请号：US152770

    申请日：1993-11-15

    申请人： On K. Chang ,  Joseph Lundquist

    发明人： On K. Chang ,  Joseph Lundquist

    IPC分类号： C01G31/00 ,  H01M4/131 ,  H01M4/48 ,  H01M4/485 ,  H01M10/052 ,  H01M10/36

    CPC分类号： H01M4/485 ,  C01G31/00 ,  H01M10/052 ,  H01M4/131 ,  Y02P70/54

    摘要： A method of making a composition having lithium, transition metal and oxygen elements and preferably having vanadium as the transition metal with a unit structure of the nominal general formula LiV.sub.3 O.sub.8, such structure being able to accept lithium ions. The method as exemplified by the formation of Li.sub.1+x V.sub.3 O.sub.8 (0.ltoreq.x.ltoreq.0.2) comprises forming a mixture of intermingled particles of vanadium pentoxide (V.sub.2 O.sub.5) and lithium carbonate (Li.sub.2 CO.sub.3) each in an amount sufficient to provide a stoichiometric ratio of approximately 1:3 of lithium to vanadium respectively; compacting the particles by applying a compressive force to the intermingled particles; and heating the intermingled particles to an elevated temperature which is below the melting point of the LiV.sub.3 O.sub.8 product of the invention. The compacting and heating steps consolidate the particles into a densified body and cause diffusion of at least a portion of the elements across particle boundaries with release of carbon dioxide, thereby providing a lithium-vanadium-oxygen composition having a unit structure of Li.sub.1+x V.sub.3 O.sub.8.

    摘要翻译： 制备具有锂，过渡金属和氧元素并优选具有钒作为过渡金属的组合物的方法，其具有标称通式LiV 3 O 8的单元结构，该结构能够接受锂离子。 通过形成Li1 + xV3O8（0≤x≤0.2）例示的方法包括形成混合的五氧化二钒（V 2 O 5）和碳酸锂（Li 2 CO 3）的混合物，其量足以提供化学计量 锂的比例约为1：3; 通过向混合的颗粒施加压缩力来压实颗粒; 并将混合的颗粒加热到低于本发明的LiV 3 O 8产物的熔点的升高温度。 压实和加热步骤将颗粒固结成致密化体，并导致至少一部分元素在释放二氧化碳的情况下跨越颗粒边界扩散，从而提供具有Li1 + xV3O8单元结构的锂 - 钒 - 氧组合物。