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1.发明授权
公开(公告)号：US6159636A
公开(公告)日：2000-12-12
申请号：US260157
申请日：1999-03-01
IPC分类号： C01G45/00 , H01M4/131 , H01M4/36 , H01M4/50 , H01M4/505 , H01M4/52 , H01M4/525 , H01M10/0525 , H01M10/36 , H01M4/32
CPC分类号： H01M4/505 , C01G45/1221 , C01G45/1228 , C01G45/1242 , C01G51/42 , C01G53/42 , C01P2002/32 , C01P2002/54 , C01P2006/40 , H01M4/131 , H01M4/364 , H01M4/366 , H01M4/525 , H01M10/0525
摘要： A method of making lithium manganese oxide of spinel structure is disclosed. The method involves the step of prelithiating a manganese oxide by reacting it with lithium hydroxide or lithium salt and then reacting the prelithiated manganese oxide in a second step at elevated temperature, for example, with lithium carbonate to form a lithium manganese oxide spinel. The spinel product may be used advantageously in secondary (rechargeable) batteries. The spinel product may be admixed with a partially substituted nickelite, preferably, LiNi.sub.x Co.sub.1-x O.sub.2 (0.1
摘要翻译： 公开了制备尖晶石结构的锂锰氧化物的方法。 该方法包括通过使其与氢氧化锂或锂盐反应来预氧化锰氧化物，然后在高温下的第二步骤中将锂离子化锰氧化物例如与碳酸锂反应以形成锰酸锂尖晶石。 尖晶石产品可以有利地用于二次（可充电）电池中。 尖晶石产物可以与部分取代的镍酸盐，优选LiNixCo1-xO2（0.1
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公开(公告)号：US5753202A
公开(公告)日：1998-05-19
申请号：US629985
申请日：1996-04-08
申请人： Enoch I. Wang , William L. Bowden , Paul Gionet
发明人： Enoch I. Wang , William L. Bowden , Paul Gionet
IPC分类号： C01D15/02 , C01G45/00 , C01G45/02 , H01M4/50 , H01M4/505 , H01M10/052 , H01M10/0525 , H01M10/36 , C01G45/12
CPC分类号： H01M4/505 , C01G45/1221 , H01M10/0525 , C01P2002/32 , C01P2006/40 , Y02P70/54
摘要： A method of making lithium manganese oxide of spinel structure is disclosed. The method involves the step of prelithiating a manganese oxide by reacting it with lithium hydroxide or lithium salt and then reacting the prelithiated manganese oxide in a second step at elevated temperature to form a lithium manganese oxide spinel. In a specific embodiment manganese dioxide powder is reacted with lithium hydroxide to prelithiate the manganese dioxide and the prelithiated manganese dioxide is separated from the reaction mixture and heated and reacted with lithium carbonate at elevated temperature to convert it to lithium manganese oxide spinel. The spinel product may be used advantageously in secondary (rechargeable) batteries.
摘要翻译： 公开了制备尖晶石结构的锂锰氧化物的方法。 该方法包括通过使其与氢氧化锂或锂盐反应来预氧化锰氧化物，然后在高温下在第二步骤中使预氧化的氧化锰反应形成锰酸锂尖晶石。 在具体实施方案中，将二氧化锰粉末与氢氧化锂反应以预氧化二氧化锰，并将预锂化的二氧化锰与反应混合物分离，并在升高的温度下加热并与碳酸锂反应以将其转化为锰酸锂尖晶石。 尖晶石产品可以有利地用于二次（可再充电）电池中。
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公开(公告)号：US06730436B2
公开(公告)日：2004-05-04
申请号：US09941526
申请日：2001-08-29
申请人： Francis P. Wang , J. Simon Xue , David Anglin , James Rozelle , Joseph Drennan , Enoch I. Wang
发明人： Francis P. Wang , J. Simon Xue , David Anglin , James Rozelle , Joseph Drennan , Enoch I. Wang
IPC分类号： H01M448
摘要： An alkaline cell having an anode comprising zinc, an alkaline electrolyte solution, a separator, and a cathode comprising copper iodate. The cathode preferably also includes a graphitic carbon to improve electrical conductivity. The graphtic carbon can comprise natural or synthetic graphites including expanded graphites and graphitic carbon fibers. Preferably, the graphitic carbon comprises graphitic carbon nanofibers. The carbon nanofibers desirably have a mean average diameter less than 500 nanometers. The cathode can also include sulfur in admixture with the copper iodate to improve cell performance.
摘要翻译： 具有阳极的碱性电池，包含锌，碱性电解质溶液，隔膜和包含碘酸铜的阴极。 阴极优选还包括石墨碳以改善导电性。 石墨碳可以包括天然或合成石墨，包括膨胀石墨和石墨碳纤维。 优选地，石墨碳包括石墨碳纳米纤维。 碳纳米纤维希望平均直径小于500纳米。 阴极还可以包括与碘酸铜混合的硫，以改善电池性能。
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公开(公告)号：US5733685A
公开(公告)日：1998-03-31
申请号：US679497
申请日：1996-07-12
申请人： Enoch I. Wang
发明人： Enoch I. Wang
CPC分类号： H01M4/505 , C01G45/1242 , C01P2002/32 , C01P2002/52 , C01P2002/54 , C01P2004/61 , C01P2006/40 , H01M10/0525 , H01M4/131
摘要： A method of treating lithium manganese oxide of spinel structure is disclosed. The method involves heating the lithium manganese oxide spinel in an atmosphere of an inert gas which does not react with the spinel. Such gases may be selected advantageously from argon, helium, nitrogen, and carbon dioxide. Preferred nonreacting gases which may be employed for spinel treatment are nitrogen or carbon dioxide. The spinel is advantageously treated with such gases at elevated temperatures. Alternatively, the spinel may be first coated with a hydroxide, preferably lithium, sodium or potassium hydroxide and then heated in an atmosphere of carbon dioxide gas at elevated temperatures. Such treatment of lithium manganese oxide spinel has been determined to improve the performance of the spinel when employed as an electrode in rechargeable cells such as lithium-ion cells.
摘要翻译： 公开了一种处理尖晶石结构的锰酸锂的方法。 该方法包括在不与尖晶石反应的惰性气体气氛中加热锂锰氧化物尖晶石。 这样的气体可以有利地从氩气，氦气，氮气和二氧化碳中选出。 可用于尖晶石处理的优选的非反应性气体是氮气或二氧化碳。 在高温下有利地用这种气体处理尖晶石。 或者，尖晶石可以首先用氢氧化物，优选氢氧化锂，氢氧化钠或氢氧化钾涂覆，然后在高温下在二氧化碳气氛中加热。 已经确定了这样的锰酸锂尖晶石的处理以提高尖晶石在用作诸如锂离子电池的可充电电池中的电极时的性能。
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公开(公告)号：US5348726A
公开(公告)日：1994-09-20
申请号：US122966
申请日：1993-09-20
申请人： Enoch I. Wang , Lifun Lin , William L. Bowden
发明人： Enoch I. Wang , Lifun Lin , William L. Bowden
CPC分类号： H01M4/502 , C01G45/02 , H01M4/50 , C01P2004/03 , C01P2004/10 , C01P2006/10 , C01P2006/40 , C01P2006/60
摘要： The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particles having such surface features can be manufactured by reacting manganese sulfate with sodium peroxodisulfate in an aqueous solution. The process can be controlled to yield high density manganese dioxide. The manganese dioxide formed in the process can be deposited directly onto the surface of electrolytic manganese dioxide (EMD). The manganese dioxide product the is particularly suitable for use as a cathode active material in electrochemical cells.
摘要翻译： 本发明涉及通过化学方法制造二氧化锰。 所得到的二氧化锰产品采用以其表面突出的丝状突起为特征的颗粒的形式。 具有这种表面特征的二氧化锰颗粒可以通过使硫酸锰与过硫酸氢钠在水溶液中反应来制造。 可以控制该过程以产生高密度二氧化锰。 在该过程中形成的二氧化锰可以直接沉积在电解二氧化锰（EMD）的表面上。 二氧化锰产品特别适用于电化学电池中的阴极活性材料。
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公开(公告)号：US5277890A
公开(公告)日：1994-01-11
申请号：US952034
申请日：1992-09-28
申请人： Enoch I. Wang , Lifun Lin , William L. Bowden
发明人： Enoch I. Wang , Lifun Lin , William L. Bowden
CPC分类号： H01M4/502 , C01G45/02 , H01M4/50 , C01P2004/03 , C01P2004/10 , C01P2006/10 , C01P2006/40 , C01P2006/60
摘要： The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particles having such surface features can be manufactured by reacting manganese sulfate with sodium peroxodisulfate in an aqueous solution. The process can be controlled to yield high density manganese dioxide. The manganese dioxide formed in the process can be deposited directly onto the surface of electrolytic manganese dioxide (EMD). The manganese dioxide product the is particularly suitable for use as a cathode active material in electrochemical cells.
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公开(公告)号：US6162561A
公开(公告)日：2000-12-19
申请号：US304445
申请日：1999-05-03
申请人： Enoch I. Wang , Francis Wang
发明人： Enoch I. Wang , Francis Wang
摘要： A process is described whereby commercial manganese dioxide, for example, electrolytic manganese dioxide (EMD), is treated with ozone before it is utilized as cathode active material in an alkaline cell. The pretreatment of the manganese dioxide is accomplished by contacting manganese dioxide with ozone gas. Alternatively, the manganese dioxide may be treated with ozone while the cathode comprising said manganese dioxide is already in the cell casing. The treatment of the manganese dioxide improves the cell's open circuit voltage (OCV) and results in an increase in service life of the cell, particularly under high power application.
摘要翻译： 描述了一种方法，其中商业二氧化锰，例如电解二氧化锰（EMD）在用作碱性电池中的阴极活性材料之前用臭氧处理。 二氧化锰的预处理是通过将二氧化锰与臭氧气体接触来实现的。 或者，可以用臭氧处理二氧化锰，而包含所述二氧化锰的阴极已经在电池外壳中。 二氧化锰的处理改善了电池的开路电压（OCV），并且导致电池的使用寿命增加，特别是在高功率应用下。
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公开(公告)号：US5783328A
公开(公告)日：1998-07-21
申请号：US757055
申请日：1996-11-26
申请人： Enoch I. Wang
发明人： Enoch I. Wang
CPC分类号： H01M4/505 , C01G45/1242 , C01P2002/32 , C01P2002/52 , C01P2002/54 , C01P2004/61 , C01P2004/80 , C01P2006/40 , H01M10/0525 , H01M4/131
摘要： A method of treating lithium manganese oxide of spinel structure is disclosed. The method involves heating the lithium manganese oxide spinel in an atmosphere of an inert gas, e.g, argon, helium, nitrogen or carbon dioxide, which does not react with the spinel. Alternatively, the spinel may be first coated with an alkali metal hydroxide, preferably lithium, sodium or potassium hydroxide and then heated in an atmosphere preferably containing carbon dioxide. Such treatment of lithium manganese oxide spinel improves the performance of the spinel when employed as an electrode in rechargeable cells such as lithium-ion cells. Alternatively, the spinel may be first treated in an aqueous solution of a soluble metal salt of a carboxylic acid prior to treatment with heated carbon dioxide or inert gas. In such latter case the spinel may optionally also be treated with an alkali metal hydroxide prior to treatment with carbon dioxide or inert gas.
摘要翻译： 公开了一种处理尖晶石结构的锰酸锂的方法。 该方法包括在不与尖晶石反应的惰性气体例如氩气，氦气，氮气或二氧化碳的气氛中加热锂锰氧化物尖晶石。 或者，尖晶石可以首先用碱金属氢氧化物，优选氢氧化锂，氢氧化钠或氢氧化钾涂覆，然后在优选含有二氧化碳的气氛中加热。 这种锂锰氧化物尖晶石的处理改善了尖晶石在用作可再充电电池如锂离子电池中的电极时的性能。 或者，尖晶石可以在用加热的二氧化碳或惰性气体处理之前首先在可溶性羧酸金属盐的水溶液中处理。 在这种后一种情况下，在用二氧化碳或惰性气体处理之前，尖晶石也可以任选地用碱金属氢氧化物处理。
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公开(公告)号：US5532084A
公开(公告)日：1996-07-02
申请号：US446370
申请日：1995-05-22
申请人： Enoch I. Wang , William L. Bowden , Lifun Lin
发明人： Enoch I. Wang , William L. Bowden , Lifun Lin
CPC分类号： H01M4/50 , C01G45/02 , C01P2004/03 , C01P2004/10 , C01P2006/10 , C01P2006/40 , C01P2006/60 , H01M4/502
摘要： The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting product takes the form of gamma manganese dioxide particles characterized by filament-like protrusions of ramsdellite manganese dioxide jutting out from the surface of the particles. The manganese dioxide particles having such features can be manufactured by reacting manganese sulfate with sodium peroxodisulfate in an aqueous solution. The process can be controlled to yield high density manganese dioxide. The manganese dioxide formed in the process can be deposited directly onto the surface of electrolytic manganese dioxide (EMD). The manganese dioxide product is particularly suitable for use as a cathode active material in electrochemical cells.
摘要翻译： 本发明涉及通过化学方法制造二氧化锰。 所得产物采用以二氧化锰颗粒为特征的形式，其特征在于从颗粒表面引出的斜面二氧化锰的丝状突起。 具有这些特征的二氧化锰颗粒可以通过使硫酸锰与过硫酸氢钠在水溶液中反应来制造。 可以控制该过程以产生高密度二氧化锰。 在该过程中形成的二氧化锰可以直接沉积在电解二氧化锰（EMD）的表面上。 二氧化锰产品特别适用于电化学电池中的阴极活性材料。
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10.发明授权Electrochemical cell comprising gamma MnO.sub.2 cathode having filamentary protrusions 失效包含具有丝状突起的γMnO2阴极的电化学电池
公开(公告)号：US5482796A
公开(公告)日：1996-01-09
申请号：US237434
申请日：1994-05-03
申请人： Enoch I. Wang , Lifun Lin , William L. Bowden
发明人： Enoch I. Wang , Lifun Lin , William L. Bowden
CPC分类号： H01M4/502 , C01G45/02 , H01M4/50 , C01P2004/03 , C01P2004/10 , C01P2006/10 , C01P2006/40 , C01P2006/60
摘要： The invention relates to the manufacture of manganese dioxide by a chemical process. The resulting manganese dioxide product takes the form of particles characterized by filament-like protrusions jutting out from its surface. The manganese dioxide particles having such surface features can be manufactured by reacting manganese sulfate with sodium peroxodisulfate in an aqueous solution. The process can be controlled to yield high density manganese dioxide. The manganese dioxide formed in the process can be deposited directly onto the surface of electrolytic manganese dioxide (EMD). The manganese dioxide product is particularly suitable for use as a cathode active material in electrochemical cells.
摘要翻译： 本发明涉及通过化学方法制造二氧化锰。 所得到的二氧化锰产品采用以其表面突出的丝状突起为特征的颗粒的形式。 具有这种表面特征的二氧化锰颗粒可以通过使硫酸锰与过硫酸氢钠在水溶液中反应来制造。 可以控制该过程以产生高密度二氧化锰。 在该过程中形成的二氧化锰可以直接沉积在电解二氧化锰（EMD）的表面上。 二氧化锰产品特别适用于电化学电池中的阴极活性材料。
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