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2. 发明公开

EP2747177A1 Lithium/graphite fluoride primary battery and method for its manufacturing 有权
标题翻译：锂/石墨氟化物
公开(公告)号：EP2747177A1
公开(公告)日：2014-06-25
申请号：EP12008515.4
申请日：2012-12-21
申请人： Karlsruher Institut für Technologie
发明人： Hahn, Horst , Reddy, Munnangi Anji , Breitung, Ben , Fichtner, Maximilian
IPC分类号： H01M4/06 , H01M4/583 , H01M6/16 , H01M6/18 , H01M4/38
CPC分类号： H01M4/5835 , H01M4/04 , H01M4/06 , H01M4/133 , H01M4/1393 , H01M4/382 , H01M6/16 , H01M6/188 , Y02E60/122 , Y02P70/54 , Y10T29/49108
摘要： The present invention relates to a lithium/graphite fluoride primary battery prepared by a process comprising the steps of
(a) Providing an amount of a graphite fluoride powder;
(b) Treating the amount of graphite fluoride powder by mechanical milling, by which step an active material is obtained; and
(c) Forming an electrochemical cell in which a mixture of the active material and an electrically conducting carbon is assembled as part of the positive electrode and a body comprising lithium is assembled as part of a negative electrode.
The present invention further relates to a method for manufacturing such a lithium/graphite fluoride primary battery.
By applying mechanical milling to the graphite fluoride powder the particle size of the active material could be considerably reduced which resulted both in a larger BET surface area, an increased value for the total pore volume and a higher tap density. By this measure, both the energy density and the power density of this battery could be considerably improved without losing the high intrinsic specific capacity of the original graphite fluoride powder material.
摘要翻译：本发明涉及通过包括以下步骤的方法制备的锂/石墨氟化物一次电池：（a）提供一定量的氟化石墨粉末; （b）通过机械研磨处理氟化石墨粉末的量，通过该步骤获得活性材料; 和（c）形成电化学电池，其中组装活性材料和导电碳的混合物作为正极的一部分，并且包含锂的体被组装为负极的一部分。本发明还涉及制造这种锂/石墨氟化物一次电池的方法。通过对氟化石墨粉末进行机械研磨，活性材料的粒径可以显着降低，这导致更大的BET表面积，增加的总孔体积值和更高的振实密度。通过这种措施，可以显着提高该电池的能量密度和功率密度，而不会损失原始氟化石墨粉末材料的高固有比容量。

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