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1. 发明授权

US06761744B1 Lithium thin film lamination technology on electrode to increase battery capacity 有权
标题翻译：锂电薄膜层压技术在电极上增加电池容量
公开(公告)号：US06761744B1
公开(公告)日：2004-07-13
申请号：US10031022
申请日：2002-01-14
申请人： Hisashi Tsukamoto , Chananit Sintuu
发明人： Hisashi Tsukamoto , Chananit Sintuu
IPC分类号： H01M1038
CPC分类号： H01M4/13 , H01M4/0435 , Y10T29/49112 , Y10T29/49115
摘要： Lithium is laminated onto or into an electrode structure comprising a metal conducting layer with an active material mixture of, for example, a nano-composite of silicon monoxide, together with graphite and a binder, such as polyvinyl di-fluoride (PVDF). The lamination of lithium metal onto or into the electrode structure will reduce the amount of irreversible capacity by readily supplying a sufficient amount of lithium ions to form the initial solid electrolyte interface. In order to laminate lithium metal onto or into the negative electrode, the lithium is first deposited onto a carrier, which is then used to laminate the lithium metal onto or into the electrode structure. The next step is placing the coated electrode material and the lithium-deposited plastic between two rollers or two plates. Plates are heated to about 120° C. or within the range of 25° C. to 250° C. A pressure of 50 kg/cm2 to 600 kg/cm2 is applied to the rollers. The speed of movement of the materials through the roller pair or the plate pair is in the range of 10 cm/min. The method can be used for either single-sided or double-sided coating. Using this technology alone, the battery capacity can increase by 7% to 15%.
摘要翻译：将锂层压到包含金属导电层的电极结构上，该电极结构具有例如一氧化硅的纳米复合物与石墨和粘合剂如聚二氟乙烯（PVDF）的活性材料混合物。将锂金属层压到电极结构上或电极结构中将通过容易地供应足够量的锂离子以形成初始固体电解质界面来减少不可逆容量的量。为了将锂金属层压到负电极上或将锂金属层压到负电极上，首先将锂沉积到载体上，然后将其用于将锂金属层压到电极结构上或其中。下一步是将涂覆的电极材料和锂沉积的塑料放置在两个辊或两个板之间。将板加热至约120℃或在25℃至250℃的范围内。对辊施加50kg / cm 2至600kg / cm 2的压力。材料通过辊对或板对的移动速度在10厘米/分钟的范围内。该方法可用于单面或双面涂层。仅使用这种技术，电池容量可以增加7％至15％。

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