公开(公告)号：US06261722B1

公开(公告)日：2001-07-17

申请号：US09361977

申请日：1999-07-28

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

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

IPC: H01M618

CPC classification number: H01M4/62 ,  H01M4/621 ,  H01M4/625

Abstract: Lithium electrochemical cells and batteries are described having electron conductive additives in the form of a mixture of carbon fibres and fine carbon particles. The electron conductive additives are provided in a polymeric fluoride coating between the electrode and the current collector. A mixture of carbon fibres and fine carbon can also be admixed with the cathode-active component in the cathode.

Abstract translation: 锂电化学电池和电池被描述为具有碳纤维和细碳颗粒混合物形式的电子传导添加剂。 在电极和集电器之间的聚合物氟化物涂层中提供电子传导添加剂。 碳纤维和细碳的混合物也可以与阴极中的阴极活性组分混合。

公开(公告)号：US6159635A

公开(公告)日：2000-12-12

申请号：US161664

申请日：1998-09-29

Applicant: Sankar Dasgupta ,  James K. Jacobs

Inventor： Sankar Dasgupta ,  James K. Jacobs

IPC: H01M2/16 ,  H01M4/13 ,  H01M4/134 ,  H01M4/66 ,  H01M6/10 ,  H01M6/50 ,  H01M10/052 ,  H01M10/36 ,  H01M10/42 ,  H01M4/62 ,  H01M10/50

CPC classification number: H01M10/4235 ,  H01M2/168 ,  H01M4/13 ,  H01M4/134 ,  H01M4/667 ,  H01M4/668 ,  H01M6/10 ,  H01M10/052 ,  H01M2200/106

Abstract: A composite electrode for a rechargeable lithium battery is described. The composite electrode has a metallic current collector in contact with an electrically conducting organic polymer laminate made of a blended and annealed polymeric mixture containing fine carbon particles, and coated with an electrode-active substance bearing layer. The conducting polymer is capable of reversible resistivity changes of several orders of magnitude in only a portion of the laminate, thereby reducing locally excessive current flow and over-heating in the rechargeable lithium battery.

Abstract translation: 描述了用于可再充电锂电池的复合电极。 复合电极具有金属集流体，与由含有细碳颗粒的共混和退火的聚合物混合物制成并涂覆有电极活性物质承载层的导电有机聚合物层压体接触。 导电聚合物能够仅在层压体的一部分中具有几个数量级的可逆电阻率变化，从而减少可再充电锂电池中的局部过大的电流和过热。

公开(公告)号：US5547782A

公开(公告)日：1996-08-20

申请号：US402359

申请日：1995-03-13

Applicant: Sankar Dasgupta ,  James K. Jacobs

Inventor： Sankar Dasgupta ,  James K. Jacobs

IPC: H01M4/66 ,  H01M6/14 ,  H01M6/18

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 lithium ion battery. 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锂离子电池的相应主面之间。 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：US5437692A

公开(公告)日：1995-08-01

申请号：US332796

申请日：1994-11-02

Applicant: Sankar Dasgupta ,  James K. Jacobs

Inventor： Sankar Dasgupta ,  James K. Jacobs

IPC: H01M2/16 ,  H01M4/58 ,  H01M6/40 ,  H01M10/38

CPC classification number: H01M10/052 ,  H01M10/05 ,  H01M10/0565 ,  H01M2/1673 ,  H01M2/168 ,  H01M4/587 ,  H01M6/40 ,  Y10T29/49108 ,  Y10T29/49115

Abstract: The non-aqueous thin film rechargeable lithium battery described has a negative electrode comprising a polymer laminate having embedded therein carbon, and a layer of fine carbon agglomerated with a lithium compound containing organic binder carried by the polymer laminate. The positive electrode of the rechargeable lithium battery contains a layer of fine particles of vanadium oxide, manganese oxide, cobalt oxide, nickel oxide or silver vanadate, agglomerated with a lithium compound containing organic binder and the layer is supported on another polymer laminate embedding carbon. In one embodiment the lithium battery has a solid polymer electrolyte containing a lithium compound capable of releasing lithium ions, located between the positive and negative electrodes. In another embodiment a microporous polymer laminate separator which has been impregnated with an organic liquid electrolyte containing a lithium compound, is placed between the polymer laminate negative electrode and the polymer laminate positive electrode. In both embodiments the electrodes are rendered adherent to the mobile lithium ion carrying electrolyte with a coating of an organic adhesive containing a lithium compound in a concentration lower than in the electrolyte, disposed between them.

Abstract translation: 所述的非水性薄膜可再充电锂电池具有包含嵌入碳的聚合物层压体的负极和由聚合物层压体携带的含有有机粘合剂的锂化合物的细小的碳层。 可再充电锂电池的正极包含一层氧化钒，氧化锰，氧化钴，氧化镍或钒酸银的细颗粒，与含有有机粘合剂的锂化合物结块，并且该层被支撑在另一个嵌入碳的聚合物层压体上。 在一个实施方案中，锂电池具有固体聚合物电解质，其含有位于正极和负极之间的能够释放锂离子的锂化合物。 在另一个实施方案中，将浸渍有含有锂化合物的有机液体电解质的微孔聚合物层压隔板放置在聚合物层压阴极和聚合物层叠正极之间。 在这两个实施例中，电极被附着在移动的锂离子负载电解质上，该涂层含有浓度低于电解质中的锂化合物的有机粘合剂，该化合物位于它们之间。

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：US07588862B2

公开(公告)日：2009-09-15

申请号：US10799759

申请日：2004-03-15

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

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

IPC: H01M10/40

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：US07570012B2

公开(公告)日：2009-08-04

申请号：US12010016

申请日：2008-01-18

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

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

IPC: H02J7/00

CPC classification number: B60L11/1864 ,  B60L11/1809 ,  B60L11/1851 ,  B60L11/1868 ,  H01M6/42 ,  H01M6/5033 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/06 ,  H01M10/425 ,  H01M10/44 ,  H01M16/00 ,  H02J7/0013 ,  H02J7/0054 ,  H02J7/0063 ,  H02J7/34 ,  Y02E60/122 ,  Y02E60/126 ,  Y02T10/7011 ,  Y02T10/7016 ,  Y02T10/7055 ,  Y02T10/7061 ,  Y02T10/7072 ,  Y02T90/14

Abstract: An electrical energy storage device for storing electrical energy and supplying the electrical energy to a driving motor at different power levels is disclosed. The electrical storage device has an energy battery connected to a power battery. The energy battery has a higher energy density than the power battery. However, the power battery can provide electrical power to the electrical motor at different power rates, thereby ensuring that the motor has sufficient power and current when needed. The power battery can be recharged by the energy storage battery. In this way, the power battery temporarily stores electrical energy received from the energy battery and both batteries can provide electrical energy at the different power rates as required by the motor. The energy storage device can be releasably connected to an external power source in order to recharge both batteries. Both batteries can be recharged independently to optimize the recharging and lifetime characteristics of the batteries.

Abstract translation: 公开了一种用于存储电能并且以不同功率水平向驱动电动机供应电能的电能存储装置。 电气存储装置具有连接到动力电池的能量电池。 能量电池具有比动力电池更高的能量密度。 然而，动力电池可以以不同的功率向电动机提供电力，从而确保电动机在需要时具有足够的功率和电流。 动力电池可以由蓄能电池充电。 以这种方式，动力电池临时存储从能量电池接收的电能，并且两个电池可以按照电动机所要求的不同功率提供电能。 能量存储装置可以可释放地连接到外部电源，以便为两个电池充电。 两个电池都可以独立充电，以优化电池的充电和使用寿命特性。

公开(公告)号：US06815121B2

公开(公告)日：2004-11-09

申请号：US09906091

申请日：2001-07-17

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

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

IPC: H01M460

CPC classification number: H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525 ,  H01M4/621 ,  H01M6/188 ,  H01M10/0525 ,  H01M10/0565 ,  Y10T29/49108 ,  Y10T29/49115

Abstract: A matted particulate electrode located between the current collector and a porous separator of a rechargeable lithium battery is described, which contains electro-active particles intermixed with pliable, solid, lithium ion conducting, polymer electrolyte filaments having adhesive surfaces. The electro-active particles and the optionally added electro-conductive carbon particles adhere to the tacky surface of the adhesively interlinking polymer electrolyte filaments. The matted particulate electrode is impregnated with an organic solution containing another lithium compound. In a second embodiment the porous separator is coated on at least one of its faces, with polymer electrolyte having an adhesive surface and made of the same polymer as the electrolyte filaments. The polymer electrolyte filaments in the matted layer may adhere to the coated surface of the separator. In addition the polymer coating is partially filling the pores of the porous electrolyte, but leaving sufficient space in the pores for the organic solution to penetrate the separator of the lithium battery.

Abstract translation: 描述了位于集电器和可再充电锂电池的多孔隔板之间的无序颗粒电极，其包含与柔性固体的锂离子传导的具有粘合表面的聚合物电解质长丝混合的电活性颗粒。 电活性粒子和任选添加的导电性碳粒子附着在粘合性交联型高分子电解质长丝的粘着面上。 用无机颗粒电极浸渍含有其他锂化合物的有机溶液。 在第二个实施方案中，多孔分离器涂覆在其至少一个表面上，聚合物电解质具有粘合剂表面并由与电解质丝相同的聚合物制成。 无光层中的聚合物电解质长丝可能附着在隔膜的涂覆表面上。 此外，聚合物涂层部分地填充多孔电解质的孔，但在孔中留出足够的空间以使有机溶液渗透到锂电池的隔板中。

公开(公告)号：US06753114B2

公开(公告)日：2004-06-22

申请号：US09104277

申请日：1998-06-25

Applicant: James K. Jacobs ,  Sankar Dasgupta

Inventor： James K. Jacobs ,  Sankar Dasgupta

IPC: H01M1040

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 microporous inert polymer separator laminate which carries another porous polymer containing a dissociable lithium compound, and the adherent polymer layers are impregnated with an organic liquid containing a lithium salt. The porous or microporous separator laminate may be a single polymer layer or a multiple polymer layer. The composite 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 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的惰性聚合物隔板层合物，其载有另一种含有可离解锂化合物的多孔聚合物，并且粘附聚合物层用含有锂盐的有机液浸渍。 多孔或微孔隔板层压体可以是单个聚合物层或多个聚合物层。 复合电解质被插入在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其主要表面的每一个上均具有粘附的可离解的锂化合物聚合物层。

公开(公告)号：US5512389A

公开(公告)日：1996-04-30

申请号：US437126

申请日：1995-05-05

Applicant: Sankar Dasgupta ,  James K. Jacobs

Inventor： Sankar Dasgupta ,  James K. Jacobs

IPC: H01M2/16 ,  H01M4/58 ,  H01M6/40 ,  H01M6/18

CPC classification number: H01M10/052 ,  H01M10/05 ,  H01M10/0565 ,  H01M2/1673 ,  H01M2/168 ,  H01M4/587 ,  H01M6/40 ,  Y10T29/49108 ,  Y10T29/49115

Abstract: The non-aqueous thin film rechargeable lithium battery described has a negative electrode comprising a polymer laminate having embedded therein carbon, and a layer of fine carbon agglomerated with a lithium compound containing organic binder carried by the polymer laminate. The positive electrode of the rechargeable lithium battery contains a layer of fine particles of vanadium oxide, manganese oxide, cobalt oxide, nickel oxide or silver vanadate, agglomerated with a lithium compound containing organic binder and the layer is supported on another polymer laminate embedding carbon. In one embodiment the lithium battery has a solid polymer electrolyte containing a lithium compound capable of releasing lithium ions, located between the positive and negative electrodes. In another embodiment a microporous polymer laminate separator which has been impregnated with an organic liquid electrolyte containing a lithium compound, is placed between the polymer laminate negative electrode and the polymer laminate positive electrode. In both embodiments the electrodes are rendered adherent to the mobile lithium ion carrying electrolyte with a coating of an organic adhesive containing a lithium compound in a concentration lower than in the electrolyte, disposed between them.

Abstract translation: 所述的非水性薄膜可再充电锂电池具有包含嵌入碳的聚合物层压体的负极和由聚合物层压体携带的含有有机粘合剂的锂化合物的细小的碳层。 可再充电锂电池的正极包含一层氧化钒，氧化锰，氧化钴，氧化镍或钒酸银的细颗粒，与含有有机粘合剂的锂化合物结块，并且该层被支撑在另一个嵌入碳的聚合物层压体上。 在一个实施方案中，锂电池具有固体聚合物电解质，其含有位于正极和负极之间的能够释放锂离子的锂化合物。 在另一个实施方案中，将浸渍有含有锂化合物的有机液体电解质的微孔聚合物层压隔板放置在聚合物层压阴极和聚合物层叠正极之间。 在这两个实施例中，电极被附着在移动的锂离子负载电解质上，该涂层含有浓度低于电解质中的锂化合物的有机粘合剂，该化合物位于它们之间。