公开(公告)号：US5304778A

公开(公告)日：1994-04-19

申请号：US979911

申请日：1992-11-23

Applicant: Sankar Dasgupta ,  James K. Jacobs ,  Stephen Radmacher ,  Marek Sobczyk

Inventor： Sankar Dasgupta ,  James K. Jacobs ,  Stephen Radmacher ,  Marek Sobczyk

IPC: F23Q7/00 ,  H05B3/14 ,  H05B3/00 ,  F02P19/02

CPC classification number: H05B3/141 ,  B32B18/00 ,  C04B35/58014 ,  C04B35/58021 ,  C04B35/58092 ,  C04B35/584 ,  C04B37/001 ,  F23Q7/001 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3873 ,  C04B2235/3891 ,  C04B2235/94 ,  C04B2237/36 ,  C04B2237/368 ,  C04B2237/58 ,  C04B2237/704 ,  C04B2237/765

Abstract: An improved ceramic heater to be incorporated in a glow plug is described. The heater is made up of a ceramic core enclosed by two layers sintered together to form a unitary ceramic heater. All three component elements of the heater are composed of silicon nitride containing different concentrations of an electrically conductive ceramic substance, such as titanium nitride, titanium carbonitride or molybdenum disilicide. Each component additionally contains low amounts of sintering additives. The core of the heater has the highest concentration (46-75 vol. %) of the electrically conductive substance. The core enclosed in a ceramic layer which is an electrical insulator and is composed of silicon nitride, less than 28 vol. % of the electrically conductive ceramic substance and sintering additives. An outer layer over the core contains the electrically conductive ceramic substance in a concentration (33-50 vol. %) which is in between that in the core and that in the insulator layer. One end of the core is integrally connected to the outer layer over it. The ceramic heater is fitted into a glow plug housing. The core and the outer layer properly joined to appropriate connectors in the glow plug housing form an electrical circuit when connected to an electrical power source.

Abstract translation: 描述了一种加入到电热塞中的改进的陶瓷加热器。 加热器由陶瓷芯组成，由两层烧结在一起形成一体的陶瓷加热器。 加热器的所有三个组分元件由含有不同浓度的导​​电陶瓷物质的氮化硅组成，例如氮化钛，碳氮化钛或二硅化钼。 每个组分另外含有少量的烧结添加剂。 加热器的核心具有最高的导电物质浓度（46-75体积％）。 封闭在陶瓷层中的芯体，该陶瓷层是电绝缘体，由氮化硅组成，小于28vol。 ％的导电陶瓷物质和烧结助剂。 芯上的外层包含浓度为（33-50体积％）的导电陶瓷物质，其浓度介于芯中和绝缘体层中。 芯的一端与外层整体连接。 陶瓷加热器安装在电热塞壳体中。 当连接到电源上时，正确地连接到电热塞壳体中的适当连接器的芯部和外层形成电路。

公开(公告)号：US20100075232A1

公开(公告)日：2010-03-25

申请号：US12559924

申请日：2009-09-15

Applicant: Sankar Dasgupta ,  Rakesh Bhola ,  James Jacobs

Inventor： Sankar Dasgupta ,  Rakesh Bhola ,  James Jacobs

IPC: H01M6/18

CPC classification number: H01M2/1653 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/0565

Abstract: The composite electrolyte for use in a thin plate rechargeable lithium battery comprises a porous or micro-porous inert, multi-layered polymer separator laminate which carries an adherent second polymer coating containing a dissociable lithium compound, and the multi-layered separator having adherent solid second polymer layer, is impregnated with an organic liquid containing another lithium salt. The porous or micro-porous separator laminate is made of multiple polymer layers, at least one of the member layers having melting temperature at least 20-C below the melting temperature of the other polymer member layers. The composite porous electrolyte is inserted between the electrodes of a rechargeable lithium battery. In another embodiment the porous polymer separator sheet has an adherent, dissociable lithium compound containing, solid second polymer layer on each of its major faces.

Abstract translation: 用于薄板可再充电锂电池的复合电解质包括多孔或微孔惰性多层聚合物隔板层合物，其携带含有可离解锂化合物的粘附的第二聚合物涂层，并且具有粘附固体秒的多层隔板 聚合物层用含有另一种锂盐的有机液体浸渍。 多孔或微孔隔层层压件由多个聚合物层制成，其中至少一个构件层的熔融温度低于其它聚合物构件层的熔融温度至少20℃。 复合多孔电解质插入可再充电锂电池的电极之间。 在另一个实施方案中，多孔聚合物隔离片在每个主要表面上具有粘附的可离解的锂化合物，其含有固体第二聚合物层。

公开(公告)号：US07432687B2

公开(公告)日：2008-10-07

申请号：US11193630

申请日：2005-08-01

Applicant: James K. Jacobs ,  Sankar DasGupta ,  David Vandermeer

Inventor： James K. Jacobs ,  Sankar DasGupta ,  David Vandermeer

IPC: G05F1/10 ,  G05F1/44

CPC classification number: H02M3/3376 ,  H02M2001/0048 ,  H02M2001/0058 ,  H03K17/133 ,  H03K17/162 ,  H03K17/6872 ,  Y02B70/1491

Abstract: A high efficiency switching power supply including an analog front end, a battery control circuitry portion, a display and equalization circuitry portion, field effect transistor (FET) drivers, an isolated power supply transformer circuitry (and three associated sets of tap circuitry), microcontroller circuitry, oscillator circuitry, overcharge protection circuitry, programmable logic circuitry portion, and a zero current predictor. Overbiasing of the FET power supply switches, and/or other various circuitry features disclosed herein, helps achieve electrical power efficiencies of preferably greater than 95%, even more preferably greater than 98% and even more preferably greater than 99%. Preferably, the switching power supply has one or more of the following: (1) high electrical power efficiency (>95%. >98%, >99%); (2) overbiasing of a gate of a power supply switch; (3) a power supply switch with a low gate capacitance ratio; (4) multiple modes of operation; and (5) current prediction wherein an inductor voltage is used to control a constant current capacitor whose voltage indicates the level of current in the inductor.

Abstract translation: 高效开关电源，包括模拟前端，电池控制电路部分，显示和均衡电路部分，场效应晶体管（FET）驱动器，隔离电源变压器电路（以及三个相关的抽头电路组），微控制器 电路，振荡器电路，过充电保护电路，可编程逻辑电路部分和零电流预测器。 FET电源开关和/或本文公开的其它各种电路特征的偏置有助于实现优选大于95％，甚至更优选大于98％，甚至更优选大于99％的电功率效率。 优选地，开关电源具有以下一个或多个：（1）高电力效率（> 95％，> 98％，> 99％）; （2）电源开关的栅极偏置; （3）栅极电容比低的电源开关; （4）多种操作模式; 和（5）电流预测，其中使用电感器电压来控制其电压指示电感器中的电流电平的恒流电容器。

公开(公告)号：US6080508A

公开(公告)日：2000-06-27

申请号：US32780

申请日：1998-03-06

Applicant: Sankar Dasgupta ,  James K. Jacobs

Inventor： Sankar Dasgupta ,  James K. Jacobs

IPC: H01M2/02 ,  H01M2/06 ,  H01M2/26 ,  H01M2/30 ,  H01M10/0525

CPC classification number: H01M2/0275 ,  H01M2/0267 ,  H01M2/06 ,  H01M10/0525

Abstract: The terminals of a thin plate rechargeable lithium battery are coated with a heat-sealable polymer. The coating forms a band on each face of the terminals and the band is heat-sealed to the inner insulator layers of a multi-layered polymer laminate enclosing the thin plate rechargeable lithium battery at a location close to an open edge of the insulator layer. Small sheets of rigid, high melting point, polymeric materials are inserted between the bands of coating carried by the terminals and the edge of the multi-layered laminate enclosing the lithium battery. A portion of the sheets of polymeric material is adhesively attached to the face of the terminal adjacent the bands of coating. The open edges of the multi-layered polymer laminate enclosure are subsequently sealed to enclose completely the thin plate lithium battery.

Abstract translation: 薄板可再充电锂电池的端子涂有可热封聚合物。 涂层在端子的每个表面上形成带，并且将带被热密封到封闭薄板可再充电锂电池的多层聚合物层压体的内绝缘体层，该绝缘层位于靠近绝缘体层的开口边缘的位置。 将小片刚性，高熔点的聚合材料插入由端子承载的涂层带和封闭锂电池的多层层压板的边缘之间。 聚合物材料片的一部分粘合地附着到邻近涂层带的端子的表面上。 随后密封多层聚合物层压体外壳的开口边缘以完全包围薄板锂电池。

公开(公告)号：US6007945A

公开(公告)日：1999-12-28

申请号：US949099

申请日：1997-10-10

Applicant: James K. Jacobs ,  Sankar Dasgupta

Inventor： James K. Jacobs ,  Sankar Dasgupta

IPC: H01M4/02 ,  H01M4/04 ,  H01M4/131 ,  H01M4/24 ,  H01M4/48 ,  H01M4/485 ,  H01M4/52 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/24 ,  H01M10/26 ,  H01M10/36 ,  H01M10/44

CPC classification number: H01M4/0447 ,  H01M10/0525 ,  H01M10/0565 ,  H01M4/364 ,  H01M4/485 ,  H01M10/446 ,  H01M2004/027 ,  H01M4/131 ,  H01M4/525 ,  Y02P70/54

Abstract: Solid solution of titanium dioxide and tin dioxide is utilized as the anode active substance in the negative electrode of a rechargeable lithium battery. The lithium battery comprised of a negative electrode containing particles of titanium dioxide-tin dioxide solid solution, a non-aqueous lithium ion bearing electrolyte and a positive electrode, usually made of a lithium containing chalcogenide compound provides stable voltage, has high reversible anode capacity and high energy density.

Abstract translation: 利用二氧化钛和二氧化锡的固溶体作为可再充电锂电池的负极中的负极活性物质。 由含有二氧化钛 - 二氧化锡固体颗粒的负极，通常由含锂的硫属化物化合物制成的非水性锂离子轴承电解质和正极的锂电池提供稳定的电压，具有高的可逆阳极容量和 高能量密度。

公开(公告)号：US5721067A

公开(公告)日：1998-02-24

申请号：US604220

申请日：1996-02-22

Applicant: James K. Jacobs ,  Sankar Dasgupta

Inventor： James K. Jacobs ,  Sankar Dasgupta

IPC: H01M4/04 ,  H01M4/131 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/36 ,  H01M10/42 ,  H01M10/44 ,  H01M10/40

CPC classification number: H01M10/0525 ,  H01M4/0447 ,  H01M4/0459 ,  H01M10/44 ,  H01M2010/4292 ,  H01M4/131 ,  H01M4/587 ,  Y02P70/54

Abstract: An improved rechargeable lithium battery is described comprising a transition metal compound as cathode active material and carbonaceous particles as anode active material, having prior intercalated lithium ions in the carbonaceous particles in the anode of the assembled lithium battery, thereby reducing the weight of the cathode active material required. The rechargeable lithium battery has increased energy density per unit weight and per unit volume.

Abstract translation: 描述了一种改进的可再充电锂电池，其包括作为正极活性材料的过渡金属化合物和作为负极活性材料的碳质颗粒，在组装的锂电池的阳极中的碳质颗粒中具有先前插入的锂离子，从而减少阴极活性物质的重量 所需材料 可充电锂电池具有每单位重量和每单位体积的能量密度增加。

公开(公告)号：US5582935A

公开(公告)日：1996-12-10

申请号：US535673

申请日：1995-09-28

Applicant: Sankar Dasgupta ,  James K. Jacobs

Inventor： Sankar Dasgupta ,  James K. Jacobs

IPC: H01M4/64 ,  H01M10/05 ,  H01M4/58

CPC classification number: H01M10/05 ,  H01M4/02 ,  H01M4/64

Abstract: The composite positive electrode comprises a metallic current collector sheet the surface of which bears a double layer of a mixed oxide interface containing an oxide of the metal of the current collector and a transition metal oxide, and a layer of the same transition metal oxide over the mixed oxide interface. The double layer is in contact with a positive electrode containing an oxide of the same transition metal as the cathode active ingredient. The composite positive electrode is designed to be incorporated in a rechargeable lithium battery.

Abstract translation: 复合正极包括金属集电体片，其表面具有包含集电体的金属的氧化物和过渡金属氧化物的混合氧化物界面的双层，以及在该层上的相同的过渡金属氧化物层 混合氧化物界面。 双层与含有与阴极活性成分相同的过渡金属的氧化物的正极接触。 复合正电极被设计成可再充电的锂电池。

公开(公告)号：US5464706A

公开(公告)日：1995-11-07

申请号：US204439

申请日：1994-03-02

Applicant: Sankar Dasgupta ,  James K. Jacobs

Inventor： Sankar Dasgupta ,  James K. Jacobs

IPC: H01M4/66 ,  H01M6/14 ,  H01M6/18 ,  H01M2/14

CPC classification number: H01M10/0525 ,  H01M4/663 ,  H01M4/664 ,  H01M4/668

Abstract: An improved lithium ion battery is described wherein corrosion of the current collector in contact with the electrode face is greatly reduced. In one embodiment an electrically conductive, ceramic layer is inserted between the current collector and the corresponding major face of the cathode. In another embodiment the metallic current collector plate is replaced by an electrically conductive laminated organic polymer having electrically conductive particles dispersed therein.

Abstract translation: 描述了改进的锂离子电池，其中与电极面接触的集电体的腐蚀大大降低。 在一个实施例中，导电陶瓷层插入在集电器和阴极的相应主面之间。 在另一个实施例中，金属集电板由其中分散有导电颗粒的导电层压有机聚合物代替。

公开(公告)号：US5409868A

公开(公告)日：1995-04-25

申请号：US172195

申请日：1993-12-23

Applicant: Sankar Dasgupta ,  Rakesh Bhola ,  James K. Jacobs

Inventor： Sankar Dasgupta ,  Rakesh Bhola ,  James K. Jacobs

IPC: C04B35/58

CPC classification number: C04B35/58071 ,  C04B35/58028 ,  C04B35/581 ,  C04B35/583

Abstract: A composition is described for hard sintered ceramic articles having densities which are 97% or higher than the theoretical density. The composition contains up to 98.5 vol. % titanium diboride, 0-59 vol % aluminum nitride, 0-59 vol. % hexagonal boron nitride, 0-59 vol. % zirconium nitride, and in addition, zirconia, hafnia or ceria having particle size 0.7 .mu.m or less, in 1.5 vol. % and optionally, a sintering aid in less 2 vol. %. The mixture of the above components is further mixed and ground by ball-milling and vibro-milling in the presence of an aliphatic alcohol, cast into required shapes and sintered in an inert gas at temperatures below 1950.degree. C. The sintered ceramic articles obtained of this composition include ceramic cutting tool inserts, impact-resistant ceramic structures, nozzles, extrusion dies and ceramic evaporating boats.

Abstract translation: 对于密度为理论密度的97％以上的硬质烧结陶瓷制品， 该组合物含量高达98.5vol。 ％二硼化钛，0-59体积％氮化铝，0-59体积％ ％六方氮化硼，0-59体积％ ％的氮化锆，另外还有在1.5体积％的粒径为0.7μm以下的氧化锆，铪或二氧化铈。 ％和任选地，少于2体积的烧结助剂。 ％。 将上述组分的混合物进一步混合并在脂肪醇存在下通过球磨和振动研磨，铸成所需形状并在低于1950℃的温度下在惰性气体中烧结。烧结陶瓷制品 该组合物包括陶瓷切削工具刀片，耐冲击陶瓷结构，喷嘴，挤出模具和陶瓷蒸发船。

公开(公告)号：US07923156B2

公开(公告)日：2011-04-12

申请号：US12559924

申请日：2009-09-15

Applicant: Sankar Dasgupta ,  Rakesh Bhola ,  James Jacobs

Inventor： Sankar Dasgupta ,  Rakesh Bhola ,  James Jacobs

IPC: H01M6/18

CPC classification number: H01M2/1653 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/0565

Abstract: The composite electrolyte for use in a thin plate rechargeable lithium battery comprises a porous or micro-porous inert, multi-layered polymer separator laminate which carries an adherent second polymer coating containing a dissociable lithium compound, and the multi-layered separator having adherent solid second polymer layer, is impregnated with an organic liquid containing another lithium salt. The porous or micro-porous separator laminate is made of multiple polymer layers, at least one of the member layers having melting temperature at least 20-C below the melting temperature of the other polymer member layers. The composite porous electrolyte is inserted between the electrodes of a rechargeable lithium battery. In another embodiment the porous polymer separator sheet has an adherent, dissociable lithium compound containing, solid second polymer layer on each of its major faces.

Abstract translation: 用于薄板可再充电锂电池的复合电解质包括多孔或微孔惰性多层聚合物隔板层合物，其携带含有可离解锂化合物的粘附的第二聚合物涂层，并且具有粘附固体秒的多层隔板 聚合物层用含有另一种锂盐的有机液体浸渍。 多孔或微孔隔层层压件由多个聚合物层制成，至少一个构件层的熔融温度低于其它聚合物构件层的熔融温度至少20℃。 复合多孔电解质插入可再充电锂电池的电极之间。 在另一个实施方案中，多孔聚合物隔离片在每个主要表面上具有粘附的可离解的锂化合物，其含有固体第二聚合物层。