公开(公告)号：EP1109236B1

公开(公告)日：2007-02-28

申请号：EP00127341.6

申请日：2000-12-13

Applicant: WILSON GREATBATCH LTD.

Inventor： Zayatz, Robert ,  Brown, Michael D.

IPC: H01M2/10 ,  H01M2/30

CPC classification number: H01M2/06 ,  H01M2/1022 ,  H01M2/105 ,  H01M2/20 ,  H01M2/22

公开(公告)号：EP1233463A3

公开(公告)日：2006-11-15

申请号：EP01124539.6

申请日：2001-10-12

Applicant: WILSON GREATBATCH LTD.

Inventor： Hallifax, Paul ,  Urso, Tina L. ,  Spillman, David M. ,  Meyer, Bruce

IPC: H01M10/40 ,  H01M2/12 ,  F16K17/04

CPC classification number: H01M10/0525 ,  F16K15/044 ,  F16K17/0406 ,  F16K24/04 ,  H01M2/1223 ,  H01M2/1276 ,  H01M10/446 ,  Y10T29/4911

Abstract: An alkali metal secondary electrochemical cell, and preferably a lithium ion cell (10), provided with a removable gas relief valve (12), is described. The gas release valve is positioned on the casing (14), in fluid flow communication between the inside thereof and the exterior. This gas release valve serves to eliminate cell gases that build up inside the casing during the cell's formation stage. Once the lithium-ion cell has completed formation, the gas release valve is removed and replaced with a hermetic closure. Removal of the gas release valve and sealing of the cell takes place in an environment in which no outside gas is capable of being introduced inside the casing. The cell can also be provided in a tank filled with inert gas and a filter which separates the cell gas from the inert gas. When cell formation is completed, the cell hermetically sealed.

公开(公告)号：EP1217672A3

公开(公告)日：2005-08-03

申请号：EP01127227.5

申请日：2001-11-16

Applicant: WILSON GREATBATCH LTD.

Inventor： Gan, Hong ,  Takeuchi, Esther S.

IPC: H01M4/02 ,  H01M6/16 ,  H01M10/40 ,  H01M4/06

CPC classification number: H01M4/54 ,  H01M4/0404 ,  H01M4/34 ,  H01M4/48 ,  Y10T29/49108

Abstract: A new sandwich cathode design is provided comprising a cathode active material provided in at least two different thicknesses. The different thickness cathode structures are then individually pressed on opposite sides of a current collector so that both are in direct contact with the substrate. Preferably, the cathode structure on the side facing the anode is of a lesser thickness than that on the opposite side of the current collector. Such an exemplary cathode design might look like:    SVO(x)/current collector/SVO(y)/current collector/SVO(z), wherein x, y and z represent thicknesses and wherein x and z are lesser than y.

Abstract translation: 新的夹层阴极设计，提供了包含在至少两个不同的厚度提供了一种正极活性物质。 不同厚度阴极结构然后单独在集电体的相对侧挤压，从而没两者都是与基片直接接触。 优选地，在面对阳极的一侧的阴极结构是厚度比在集电体的相反侧的较小。 上示例性的阴极设计搜索可能看起来像：SVO（X）/集电体/ SVO（Y）/集电体/ SVO（Z），worin x，y和z表示厚度和worin x和z大于y较小。

公开(公告)号：EP0777915B1

公开(公告)日：2005-07-20

申请号：EP96916461.5

申请日：1996-05-14

Applicant: WILSON GREATBATCH LTD.

Inventor： TAKEUCHI, Esther S. ,  WALSH, Karen M.

IPC: H01M6/00 ,  H01M6/16

CPC classification number: H01M6/168 ,  H01M6/162

Abstract: An improved alkali metal/mixed metal oxide electrochemical cell capable of delivering high current pulses, rapidly recovering its open circuit voltage and having high current capacity, is described. The stated benefits are realized by dissolving a carbon oxide such as CO2 in the electrolyte.

公开(公告)号：EP1233465B1

公开(公告)日：2005-01-26

申请号：EP02251050.7

申请日：2002-02-15

Applicant: WILSON GREATBATCH LTD.

Inventor： Probst, Joseph M

IPC: H01M4/73 ,  H01M4/72

CPC classification number: H01M10/0413 ,  H01M4/661 ,  H01M4/72 ,  H01M10/045 ,  Y10T29/10 ,  Y10T29/49108

公开(公告)号：EP1241720A3

公开(公告)日：2004-10-20

申请号：EP02251863.3

申请日：2002-03-15

Applicant: WILSON GREATBATCH LTD.

Inventor： Gan, Hong ,  Takeuchi, Esther S. ,  Rubino, Robert S.

IPC: H01M4/04 ,  H01M10/40

CPC classification number: H01M10/0587 ,  H01M4/04 ,  H01M4/0404 ,  H01M4/0409 ,  H01M4/0416 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/362 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/5835 ,  H01M4/742 ,  H01M6/10 ,  H01M6/16 ,  Y10T29/49115

Abstract: The invention is directed to an electrochemical cell. having at least one of its electrodes produced by coating a slurry mixture of an active material, possibly a conductive additive, and a binder dispersed in a solvent and contacted to a perforated current collector foil. It is particularly important that the active slurry does not move through the perforations of the current collector. For this reason, a barrier is placed against the opposite side of the current collector to block the perforations as the current collector is being coated with the slurry. After volatilizing the solvent, a second, different active material is coated to the opposite side of the current collector, either as a slurry, a pressed powder, a pellet or a free standing sheet. An example of this is a cathode having a configuration of: SVO/current collector CF x . The opposed active materials on the current collector can also be of the same chemistry.

公开(公告)号：EP1217674A3

公开(公告)日：2004-10-20

申请号：EP01310528.3

申请日：2001-12-17

Applicant: WILSON GREATBATCH LTD.

Inventor： Leising, Randolph A. ,  Palazzo, Marcus

IPC: H01M4/54 ,  H01M4/62

CPC classification number: H01M4/623 ,  H01M4/0404 ,  H01M4/48 ,  H01M4/54 ,  H01M4/583 ,  H01M4/621 ,  H01M4/661 ,  H01M10/0525 ,  Y10T29/49115

Abstract: The invention is directed to an SVO electrochemical cell having high rate capability. The cathode is produced by coating a mixture of an active material, conductive additives, a mixed binder, and an aluminum foil current collector. The mixed binder consists of a mixture of heat treated polyamic acid with PVDF. The use of heat treated polyamic acid maintains adhesion to the conductive current collector while the PVDF portion of the binder gives flexibility. A particularly preferred couple is of a lithium/silver vanadium oxide (Li/SVO) chemistry and the binder mixture enables an active slurry of SVO to be coated onto a current collector without delamination.

公开(公告)号：EP1246276A3

公开(公告)日：2004-01-14

申请号：EP02006915.9

申请日：2002-03-26

Applicant: WILSON GREATBATCH LTD.

Inventor： Zayatz, Robert ,  Brown, Michael ,  Ronald, Timothy

IPC: H01M2/34 ,  H01H85/06

CPC classification number: H01M2/22 ,  H01H2037/768 ,  H01M2/0207 ,  H01M2/0408 ,  H01M2/34 ,  H01M2/348 ,  H01M10/052 ,  H01M2200/103

Abstract: A power providing device that has a battery (10), a protective housing (22) a terminal cap (28) and a fuse (31).

公开(公告)号：EP0978889B1

公开(公告)日：2003-10-08

申请号：EP98305864.5

申请日：1998-07-23

Applicant: WILSON GREATBATCH LTD.

Inventor： Takeuchi, Esther S. ,  Thiebolt, William C, III

IPC: H01M4/62 ,  H01M4/24 ,  H01M10/24 ,  H01M10/40

CPC classification number: H01M4/625 ,  H01M6/16 ,  Y10T29/49108

公开(公告)号：EP1220342A3

公开(公告)日：2003-09-17

申请号：EP01310945.9

申请日：2001-12-28

Applicant: WILSON GREATBATCH LTD.

Inventor： Takeuchi, Esther S. ,  Palazzo, Marcus

IPC: H01M4/48 ,  H01M4/54

CPC classification number: C01G31/00 ,  C01P2006/40 ,  H01M4/48 ,  H01M4/483 ,  H01M4/5825 ,  H01M6/16

Abstract: The current invention relates to the preparation of an improved cathode active material for non-aqueous lithium electrochemical cell. In particular, the cathode active material comprises ε-phase silver vanadium oxide prepared by using a γ-phase silver vanadium oxide starting material. The reaction of γ-phase SVO with a silver salt produces the novel ε-phase SVO possessing a lower surface area than ε-phase SVO produced from vanadium oxide (V 2 O 5 ) and a similar silver salt as starting materials. Consequently, the low surface area ε-phase SVO material provides an advantage in greater long term stability in pulse dischargeable cells.