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1.发明授权公开(公告)号：US09114779B2
公开(公告)日：2015-08-25
申请号：US13153577
申请日：2011-06-06
IPC分类号： H01M10/0525 , B60R22/46
CPC分类号： B60R22/4628 , B60R2022/4647
摘要： A lithiated metal phosphate material substituted by divalent atoms at the M2 site and trivalent atoms, a portion of which are present at both the M2 and the M1 sites. The substituted material has the general formula of Li1-3tM2+1-t-dTt3+Dd2+PO4, wherein M is selected from the group consisting of Mn2+, Co2+, Ni2+ and combinations thereof; T is selected from the group consisting of Fe3+, Al3+ and Ga3+ and a portion of said T resides at the M2 sites, said portion being greater than 0 and no more than 99 percent of the total T atoms; D is selected from the group consisting of Fe2+, Mn2+, Co2+, Ni2+, Mg2+, Zn2+, Ca2+ and combinations thereof; d has a value greater than 0 and no more than 0.3; and t has a value in the range of 0 to 0.3. Also disclosed are electrodes which incorporate the substituted metal phosphate material and are disposed in electrochemical cells as well as batteries, including rechargeable lithium ion batteries. Finally, there is disclosed a method of increasing the life cycle of an electrode by forming the electrode by mixing and dissolving LiH2PO4, Co(OH)2 and FeC2O4.2H2O in HNO3, evaporating the water from this solution to form a solid powder mixture, heating said mixture to around 600° C. under N2 for approximately 12 hours, cooling, ball milling for about 30 minutes the mixture with 0.01-10 wt. % acetylene black; heating the mixture again to around 600° C. under N2 for about an hour and then coating the mixture onto an Al foil substrate to produce a composite electrode.
摘要翻译： 在M2位置被二价原子取代的锂化金属磷酸盐物质和三价原子，其一部分存在于M2和M1位点。 取代的材料具有通式Li1-3tM2 + 1-t-dTt3 + Dd2 + PO4，其中M选自Mn2 +，Co2 +，Ni2 +及其组合; T选自Fe3 +，Al3 +和Ga3 +，所述T的一部分位于M2位置，所述部分大于0且不超过总T原子的99％; D选自Fe2 +，Mn2 +，Co2 +，Ni2 +，Mg2 +，Zn2 +，Ca2 +及其组合; d的值大于0且不大于0.3; t的值在0〜0.3的范围内。 还公开了包含取代的金属磷酸盐材料并且设置在电化学电池中的电极以及包括可再充电锂离子电池的电池。 最后，公开了通过将LiH 2 PO 4，Co（OH）2和FeC 2 O 4·2H 2 O在HNO 3中混合并溶解形成电极而使电极的寿命周期增加的方法，从该溶液蒸发水以形成固体粉末混合物， 在N 2下将所述混合物加热至约600℃约12小时，冷却，球磨约30分钟，混合物用0.01-10wt。 ％乙炔黑; 在N 2下再次将混合物再加热至约600℃约1小时，然后将该混合物涂覆到Al箔基材上以制备复合电极。
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2.发明授权公开(公告)号：US06200356B1
公开(公告)日：2001-03-13
申请号：US09313868
申请日：1999-05-17
IPC分类号： H01M616
CPC分类号： H01M10/0525 , H01M4/0438 , H01M4/0445 , H01M4/661 , H01M10/44 , Y10T29/10 , Y10T29/49108
摘要： A lithium ion secondary electrochemical cell includes an anode comprising both a material capable of reversibly incorporating an alkali metal, and a copper current collector, a cathode capable of reversibly incorporating an alkali metal, and an electrolyte which includes a solution of an alkali metal salt dissolved in a polar organic solvent. A method of preventing the electrochemical dissolution of the copper current collector in the lithium ion battery electrolyte includes charging the lithium ion cell immediately after its assembly. By immediately charging the freshly assembled lithium ion cell, lithium will be intercalated into carbon. The copper current collector, therefore, will be at the lithium-carbon potential and thus will be cathodically protected, and will not electrochemically dissolve in the lithium ion battery electrolyte.
摘要翻译： 锂离子二次电化学电池包括包含能够可逆地掺入碱金属的材料和铜集电体，能够可逆地掺入碱金属的阴极和包含碱金属盐溶解溶液的电解质的阳极 在极性有机溶剂中。 防止铜离子集电体在锂离子电池电解质中的电化学溶解的方法包括在组装之后立即对锂离子电池进行充电。 通过立即对新组装的锂离子电池进行充电，锂将被插入碳中。 因此，铜电流收集器将处于锂碳电势，因此将被阴极保护，并且不会电化学溶解在锂离子电池电解质中。
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3.发明申请公开(公告)号：US20120208067A1
公开(公告)日：2012-08-16
申请号：US13153577
申请日：2011-06-06
CPC分类号： B60R22/4628 , B60R2022/4647
摘要： A lithiated metal phosphate material substituted by divalent atoms at the M2 site and trivalent atoms, a portion of which are present at both the M2 and the M1 sites. The substituted material has the general formula of Li1-3tM2+1-t-dT3+Dd2+PO4, wherein M is selected from the group consisting of Mn2+, Co2+, Ni2+ and combinations thereof; T is selected from the group consisting of Fe3+, Al3+ and Ga3+ and a portion of said T resides at the M2 sites, said portion being greater than 0 and no more than 99 percent of the total T atoms; D is selected from the group consisting of Fe2+, Mn2+, Co2+, Ni2+, Mg2-+, Zn2+, Ca2+ and combinations thereof; d has a value greater than 0 and no more than 0.3; and t has a value in the range of 0 to 0.3. Also disclosed are electrodes which incorporate the substituted metal phosphate material and are disposed in electrochemical cells as well as batteries, including rechargeable lithium ion batteries. Finally, there is disclosed a method of increasing the life cycle of an electrode by forming the electrode by mixing and dissolving LiH2PO4, Co(OH)2 and FeC2O4.2H2O in HNO3, evaporating the water from this solution to form a solid powder mixture, heating said mixture to around 600° C. under N2 for approximately 12 hours, cooling, ball milling for about 30 minutes the mixture with 0.01-10 wt. % acetylene black; heating the mixture again to around 600° C. under N2 for about an hour and then coating the mixture onto an Al foil substrate to produce a composite electrode.
摘要翻译： 在M2位置被二价原子取代的锂化金属磷酸盐物质和三价原子，其一部分存在于M2和M1位点。 取代的材料具有通式为Li1-3tM2 + 1-t-dT3 + Dd2 + PO4，其中M选自Mn2 +，Co2 +，Ni2 +及其组合; T选自Fe3 +，Al3 +和Ga3 +，所述T的一部分位于M2位置，所述部分大于0且不超过总T原子的99％; D选自Fe2 +，Mn2 +，Co2 +，Ni2 +，Mg2 +，Zn2 +，Ca2 +及其组合; d的值大于0且不大于0.3; t的值在0〜0.3的范围内。 还公开了包含取代的金属磷酸盐材料并且设置在电化学电池中的电极以及包括可再充电锂离子电池的电池。 最后，公开了通过将LiH 2 PO 4，Co（OH）2和FeC 2 O 4·2H 2 O在HNO 3中混合并溶解形成电极而使电极的寿命周期增加的方法，从该溶液蒸发水以形成固体粉末混合物， 在N 2下将所述混合物加热至约600℃约12小时，冷却，球磨约30分钟，混合物用0.01-10wt。 ％乙炔黑; 在N 2下再次将混合物再加热至约600℃约1小时，然后将该混合物涂覆到Al箔基材上以制备复合电极。
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4.发明授权公开(公告)号：US06316143B1
公开(公告)日：2001-11-13
申请号：US09469781
申请日：1999-12-22
IPC分类号： H01M458
CPC分类号： H01M4/13 , H01M4/58 , H01M2004/027 , Y10T29/49115
摘要： An electrode for a rechargeable lithium-ion battery is formed by mixing stanous oxide (SnO) and lithium nitride (Li3N) in a stoichiometric ratio of 2 moles of Li3N to 3 moles of SnO to form a mixture, milling the mixture to obtain a milled powder, and processing the milled powder in accordance with an electrode-forming technique. The electrode forming technique can be any one of die pressing, spraying, doctor-blading and rolling. Conductive additives, such as carbon and binders (PVDF, cellulose and Teflon), can be introduced during the processing step. Preferably, the method is carried out in a dry, inert atmosphere of argon or helium. As a result of the invention, a smaller, lighter and more efficient lithium-ion battery is produced.
摘要翻译： 通过将化学计量比为2摩尔Li 3 N至3摩尔SnO的氧化亚锡（SnO）和氮化锂（Li 3 N）混合以形成混合物形成可再充电锂离子电池用电极，研磨混合物以获得研磨 粉末，并根据电极形成技术处理研磨的粉末。 电极形成技术可以是压模，喷涂，刮刀和轧制中的任何一种。 可以在加工步骤中引入导电添加剂，例如碳和粘合剂（PVDF，纤维素和特氟隆）。 优选地，该方法在干燥的惰性气氛氩气或氦气中进行。 作为本发明的结果，生产了更小，更轻和更有效的锂离子电池。
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