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1
EP0975037A4
Publication/Patent Number: EP0975037A4
Publication date: 2007-09-26
Application number: 98929695
Filing date: 1998-06-25
Abstract: Conventional batteries have the following problem. When the battery temperature rises above a temperature at which the separator melts and flows due to an internal short-circuit
2
EP1035606A4
Publication/Patent Number: EP1035606A4
Publication date: 2006-06-14
Application number: 98929701
Filing date: 1998-06-25
Abstract: Conventional batteries have a problem that
3
EP1120846A4
Publication/Patent Number: EP1120846A4
Publication date: 2005-03-30
Application number: 99931498
Filing date: 1999-07-23
Abstract: In case of a conventional battery having a laminated sheet material as a battery case (1) for storing a battery body
4
CN1150643C
Publication/Patent Number: CN1150643C
Publication date: 2004-05-19
Application number: 99809408
Filing date: 1999-06-10
Abstract: 本发明提供一种在因电池发生内部或外部短路而导致电池温度上升时,其电阻也增加的安全可靠的电池。其中具有含有预定量的随温度上升其电阻也增加的电子导电材料和导电助剂的电极,且相对于活性物质,电子导电材料和导电助剂的合计量的比例有一定范围,电子导电材料的粒径与导电助剂的粒径之比也在预定范围内。 本发明提供一种在因电池发生内部或外部短路而导致电池温度上升时,其电阻也增加的安全可靠的电池。其中具有含有预定量的随温度上升其电阻也增加的电子导电材料和导电助剂的电极,且相对于活性物质,电子导电材料和导电助剂的合计量的比例有一定范围,电子导电材料的粒径与导电助剂的粒径之比也在预定范围内。 ...more ...less
5
CN1145234C
Publication/Patent Number: CN1145234C
Publication date: 2004-04-07
Application number: 98804694
Filing date: 1998-06-25
Abstract: 在现有的电池中,由于因内部短路等原因电池温度上升到100℃以上时将产生大的短路电流,故存在着因发热而使电池温度进一步上升,短路电流进一步增大的问题。为此,使与电极中的活性物质(8)接触的电子导电性材料(9)为含有导电性填充剂和树脂的材料,使得随着温度的上升电极的电阻值也上升,而且,使活性物质(8)的粒径与电子导电性材料(9)的粒径的比值为0.1~20,以解决上述问题。 在现有的电池中,由于因内部短路等原因电池温度上升到100℃以上时将产生大的短路电流,故存在着因发热而使电池温度进一步上升,短路电流进一步增大的问题。为此,使与电极中的活性物质(8)接触的电子导电性材料(9)为含有导电性填充剂和树脂的材料,使得随着温度的上升电极的电阻值也上升,而且,使活性物质(8)的粒径与电子导电性材料(9)的粒径的比值为0.1~20,以解决上述问题。 ...more ...less
6
CN1145233C
Publication/Patent Number: CN1145233C
Publication date: 2004-04-07
Application number: 98804693
Filing date: 1998-06-25
Abstract: 现有的电池,在由于内部短路等原因使电池温度上升到高于使隔离物熔融流动的温度时,由于隔离物流动的部分在正极和负极之间有大的短路电流,故存在着因发热而使电池温度进一步上升,短路电流进一步增大的问题。本发明旨在解决上述的问题,其目的在于提供一种随着温度上升电阻也上升的电极,以及该电极的制造方法和使用该电极的电池。其中电子导电性材料层的粒子状的电子导电性材料中所含的导电性填充剂的比率为55重量份~70重量份。 现有的电池,在由于内部短路等原因使电池温度上升到高于使隔离物熔融流动的温度时,由于隔离物流动的部分在正极和负极之间有大的短路电流,故存在着因发热而使电池温度进一步上升,短路电流进一步增大的问题。本发明旨在解决上述的问题,其目的在于提供一种随着温度上升电阻也上升的电极,以及该电极的制造方法和使用该电极的电池。其中电子导电性材料层的粒子状的电子导电性材料中所含的导电性填充剂的比率为55重量份~70重量份。 ...more ...less
7
US6677074B2
Publication/Patent Number: US6677074B2
Publication date: 2004-01-13
Application number: 09/485,684
Filing date: 2000-02-25
Abstract: Conventional batteries have a problem that, in case the battery temperature should rise to 100° C. or higher due to an internal short-circuit, etc., a large short-circuit current develops to generate heat. It follows that the battery temperature further increases, which can result in a further increase of the short-circuit current. Further, some of electrode structures involve reduction in discharge capacity. These problems are solved by a battery in which an electron conductive material (9), being in contact with an active material (8) in an electrode, comprises a conductive filler and a resin so that the electrode may increase its resistivity with a temperature rise, and the ratio of the particle size of the electron conductive material (9) to that of the active material (8) is in a range of from 0.1 to 20. Conventional batteries have a problem that, in case the battery temperature should rise to 100° C. or higher due to an internal short-circuit, etc., a large short-circuit current develops to generate heat. It follows that the battery temperature further increases, which can ...more ...less
8
US6703162B2
Publication/Patent Number: US6703162B2
Publication date: 2004-03-09
Application number: 09/814,701
Filing date: 2001-03-23
Abstract: In case of a conventional battery having a laminated sheet material as a battery case for storing a battery body, the metal foil on the laminated sheet does not contact to either a positive electrode or a negative electrode and electric potential is unstable. Therefore, there was a problem that it was impossible to obtain electrical shielding effect. In order to maintain the function of the sealed part in the battery case, an extended part extended from the sealed part is disposed at a position where it overlaps with the positive electrode lead or the negative electrode lead, and by jointing the lead and the extended part with the conductive material piercing therethrough, the metal foil on the laminated sheet material of the battery case is electrically connected to the lead to maintain the electric potential of the battery case to the electric potential of the positive electrode or the negative electrode. In case of a conventional battery having a laminated sheet material as a battery case for storing a battery body, the metal foil on the laminated sheet does not contact to either a positive electrode or a negative electrode and electric potential is unstable. Therefore, there ...more ...less
9
US6696203B2
Publication/Patent Number: US6696203B2
Publication date: 2004-02-24
Application number: 09/779,583
Filing date: 2001-02-09
Abstract: The battery of the present invention comprises the electrode which contains the pre-determined amount of electronically conductive material at which resistance increases in accordance with temperature rise and conductive agent; the electrode wherein the ratio of the total amount of the electronically conductive material and the conductive agent to the active material is set to a pre-determined value; and the electrode wherein the average particle size of the conductive agent based on the average particle size of the electronically conductive material is in a pre-determined range. The coducitive material contains an electrically conductive filler and a crystalline resin. The conductive material and the coductive agent are contacted with the active material. A significant reduction in short circuit current is achieved over a defined range of conductive agent particle size. The battery of the present invention comprises the electrode which contains the pre-determined amount of electronically conductive material at which resistance increases in accordance with temperature rise and conductive agent; the electrode wherein the ratio of the total amount ...more ...less
10
CN1129971C
Publication/Patent Number: CN1129971C
Publication date: 2003-12-03
Application number: 98804697
Filing date: 1998-06-25
11
WO03021110A1
Publication/Patent Number: WO03021110A1
Publication date: 2003-03-13
Application number: 0208637
Filing date: 2002-08-28
Abstract: A fan device mandatory for cooling a light source lamp since
12
US6579641B2
Publication/Patent Number: US6579641B2
Publication date: 2003-06-17
Application number: 09/741,801
Filing date: 2000-12-22
Abstract: A battery with an active material layer 6 having an active material 8, an electronically conductive material 9 contacted to the active material 8, and an electrolytic layer 3 jointed with the active material layer 6, wherein the electronically conductive material 9 comprises an electrically conductive filler and a resin having a predetermined thermal melting temperature T1, and has a Positive Temperature Coefficient (PTC) such that resistance of the electrically conductive material increases with temperature, and wherein the active material layer 6 and the electrolytic layer 3 are laminated and are jointed together by heating the resin to a predetermined thermal treatment temperature T2. A battery with an active material layer 6 having an active material 8, an electronically conductive material 9 contacted to the active material 8, and an electrolytic layer 3 jointed with the active material layer 6, wherein the electronically conductive material 9 comprises an ...more ...less
13
US20030090021A1
Publication/Patent Number: US20030090021A1
Publication date: 2003-05-15
Application number: 10/330,274
Filing date: 2002-12-30
Abstract: A method of fabricating an electrode includes pulverizing an electron conductive material containing a conductive filler and a resin, dispersing the ground electron conductive material to make a paste, drying the paste to form an electron conductive material layer, dispersing an active material to prepare an active material paste, and applying the active material paste on the electron conductive material layer and pressing at a prescribed temperature under a prescribed pressure. A method of fabricating an electrode includes pulverizing an electron conductive material containing a conductive filler and a resin, dispersing the ground electron conductive material to make a paste, drying the paste to form an electron conductive material layer, dispersing an ...more ...less
14
US20030129478A1
Publication/Patent Number: US20030129478A1
Publication date: 2003-07-10
Application number: 09/485,684
Filing date: 2000-02-25
Abstract: Conventional batteries have a problem that, in case the battery temperature should rise to 100° C. or higher due to an internal short-circuit, etc., a large short-circuit current develops to generate heat. It follows that the battery temperature further increases, which can result in a further increase of the short-circuit current. Further, some of electrode structures involve reduction in discharge capacity. These problems are solved by a battery in which an electron conductive material (9), being in contact with an active material (8) in an electrode, comprises a conductive filler and a resin so that the electrode may increase its resistivity with a temperature rise, and the ratio of the particle size of the electron conductive material (9) to that of the active material (8) is in a range of from 0.1 to 20. Conventional batteries have a problem that, in case the battery temperature should rise to 100° C. or higher due to an internal short-circuit, etc., a large short-circuit current develops to generate heat. It follows that the battery temperature further increases, which can ...more ...less
15
US6623883B1
Publication/Patent Number: US6623883B1
Publication date: 2003-09-23
Application number: 09/485,692
Filing date: 2000-02-25
Abstract: The object of the present invention is to obtain an electrode whose resistivity increases with temperature, and a battery using the same. Specifically, the invention consists in limiting the proportion of a conductive filler contained in electron conductive particles of an electron conductive particle layer to a range of from 55 to 70 parts by weight. A battery constituted by using the electrode has an increased discharge capacity and is capable of reducing a short-circuit current. The object of the present invention is to obtain an electrode whose resistivity increases with temperature, and a battery using the same. Specifically, the invention consists in limiting the proportion of a conductive filler contained in electron conductive particles of an ...more ...less
16
US20030064284A1
Publication/Patent Number: US20030064284A1
Publication date: 2003-04-03
Application number: 10/158,056
Filing date: 2002-05-31
Abstract: The present invention provides a nonaqueous electrolyte battery, of which impact resistance can be enhanced. The nonaqueous electrolyte battery comprising a flat electric power generating element, a baglike container, leads, and a resin for fixing surfaces of a thin portion of the electric power generating element and an inner surface of the baglike container together. The present invention provides a nonaqueous electrolyte battery, of which impact resistance can be enhanced. The nonaqueous electrolyte battery comprising a flat electric power generating element, a baglike container, leads, and a resin for fixing surfaces of a thin portion of ...more ...less
17
US20030064286A1
Publication/Patent Number: US20030064286A1
Publication date: 2003-04-03
Application number: 10/158,151
Filing date: 2002-05-31
Abstract: The present invention provides a nonaqueous electrolyte battery, of which impact resistance can be enhanced. The nonaqueous electrolyte battery comprising a electric power generating element, a baglike container, leads, and a resin for fixing the leads and an inner surface of the baglike container together. The present invention provides a nonaqueous electrolyte battery, of which impact resistance can be enhanced. The nonaqueous electrolyte battery comprising a electric power generating element, a baglike container, leads, and a resin for fixing the leads and an inner surface of ...more ...less
18
US6440605B1
Publication/Patent Number: US6440605B1
Publication date: 2002-08-27
Application number: 09/485,685
Filing date: 2000-02-25
Abstract: Conventional batteries have a problem that, in case the battery temperature should rise to or above a temperature at which the separator melts or flows due to an internal short-circuit, etc., a large short-circuit current develops to generate heat at the part where the separator flows. It follows that the battery temperature further increases, which can result in a further increase of the short-circuit current. The invention has been completed to solve the abovementioned problem. It is an object of the invention to provide an electrode which increases its resistivity with temperature, a method of fabricating the electrode, and a battery using the electrode. Specifically, the electrode of the invention contains a resin which is in contact with an active material or a conducting agent and expands in volume with a rise in temperature. Conventional batteries have a problem that, in case the battery temperature should rise to or above a temperature at which the separator melts or flows due to an internal short-circuit, etc., a large short-circuit current develops to generate heat at the part where the separator ...more ...less
19
CN1311902A
Publication/Patent Number: CN1311902A
Publication date: 2001-09-05
Application number: 99809408
Filing date: 1999-06-10
Abstract: 本发明提供一种在因电池发生内部或外部短路而导致电池温度上升时,其电阻也增加的安全可靠的电池。其中具有含有预定量的随温度上升其电阻也增加的电子导电材料和导电助剂的电极,且相对于活性物质,电子导电材料和导电助剂的合计量的比例有一定范围,电子导电材料的粒径与导电助剂的粒径之比也在预定范围内。 本发明提供一种在因电池发生内部或外部短路而导致电池温度上升时,其电阻也增加的安全可靠的电池。其中具有含有预定量的随温度上升其电阻也增加的电子导电材料和导电助剂的电极,且相对于活性物质,电子导电材料和导电助剂的合计量的比例有一定范围,电子导电材料的粒径与导电助剂的粒径之比也在预定范围内。 ...more ...less