公开(公告)号：US20210215766A1

公开(公告)日：2021-07-15

申请号：US16743769

申请日：2020-01-15

Applicant: Medtronic, Inc.

Inventor： Gang Ji ,  Craig L. Schmidt ,  Gaurav Jain

IPC: G01R31/389 ,  G01R31/36 ,  G01R31/367 ,  G01R31/392

Abstract: In some examples, a host device includes a battery capacity and/or battery resistance predictive model. The host device may predict a battery capacity value and/or batter resistance value of a rechargeable battery and compare the predicted battery capacity and/or predicted battery resistance to a battery capacity value and/or battery resistance value stored in a fuel gauge. The host device may overwrite the battery capacity value and/or battery resistance value stored in the fuel gauge with the predicted battery capacity value and/or the predicted battery resistance value if the difference is greater than a maximum error threshold.

公开(公告)号：US09799887B2

公开(公告)日：2017-10-24

申请号：US14261573

申请日：2014-04-25

Applicant: Medtronic, Inc.

Inventor： Kaimin Chen ,  Gaurav Jain

IPC: H01M4/62 ,  H01M6/16 ,  H01M4/06 ,  H01M4/38 ,  H01M4/583 ,  H01M4/54 ,  H01M4/36 ,  H01M4/48 ,  H01M4/50 ,  H01M4/58

CPC classification number: H01M4/625 ,  H01M4/06 ,  H01M4/364 ,  H01M4/382 ,  H01M4/48 ,  H01M4/502 ,  H01M4/54 ,  H01M4/582 ,  H01M4/5835 ,  H01M6/16

Abstract: Cathodes containing active materials and carbon nanotubes are described. The use of carbon nanotubes in cathode materials can provide a battery having increased longevity and volumetric capacity over batteries that contain a cathode that uses conventional conductive additives such as carbon black or graphite.

公开(公告)号：US20150275384A1

公开(公告)日：2015-10-01

申请号：US14675106

申请日：2015-03-31

Applicant: Medtronic, Inc.

Inventor： Joseph J. Viavattine ,  Gaurav Jain ,  Prabhakar A. Tamirisa

IPC: C25D7/06 ,  H01M4/04

CPC classification number: C25D7/0642 ,  H01M4/0407 ,  H01M10/044 ,  H01M10/0445 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/425 ,  H01M2004/027 ,  Y02E60/122 ,  Y10T29/49108

Abstract: An auxiliary electrode for a lithium-ion battery includes a lithium source material. The auxiliary electrode is configured to selectively couple to a negative electrode of a lithium-ion battery to provide lithium for formation of a solid-electrolyte-inter-phase layer on a negative electrode.

Abstract translation: 用于锂离子电池的辅助电极包括锂源材料。 辅助电极被配置为选择性地耦合到锂离子电池的负极以提供用于在负极上形成固体 - 电解质 - 相间层的锂。

公开(公告)号：US20150263392A1

公开(公告)日：2015-09-17

申请号：US14657759

申请日：2015-03-13

Applicant: Medtronic, Inc.

Inventor： Erik R. Scott ,  Gaurav Jain

IPC: H01M10/44 ,  H01M4/131 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/485 ,  H01M4/583

CPC classification number: H01M10/446 ,  H01M4/131 ,  H01M4/485 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2010/4292 ,  H01M2300/0028 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49108

Abstract: A method for producing a battery includes providing a battery having a positive electrode, a negative electrode, and an electrolyte that includes a solvent and a salt. The capacity of the negative electrode is less than that of the positive electrode and the negative electrode includes an active material having an average potential versus a lithium reference electrode of greater than approximately 0.2 volts. The method also includes applying an initial charge to the battery at a voltage that is greater than a fully charged voltage of the battery for a sufficient amount of time to cause at least a portion of the solvent to undergo a reduction reaction. The step of applying an initial charge to the battery acts to increase the irreversible capacity loss of the battery during the initial charge and provides the battery with enhanced tolerance to deep discharge conditions.

Abstract translation: 电池的制造方法包括提供具有正极，负极和包含溶剂和盐的电解质的电池。 负极的容量小于正极的容量，负极包括具有大于约0.2伏特的平均电位相对于锂参比电极的活性材料。 该方法还包括以大于电池的完全充电电压的电压对电池施加初始电荷足够的时间以使至少一部分溶剂进行还原反应。 向电池施加初始电荷的步骤用于增加初始充电期间电池的不可逆容量损失，并为电池提供增强的对深放电条件的容限。

公开(公告)号：US09130229B2

公开(公告)日：2015-09-08

申请号：US13754970

申请日：2013-01-31

Applicant: MEDTRONIC, INC.

Inventor： Kaimin Chen ,  Parthasarathy M. Gomadam ,  Gaurav Jain

IPC: H01M4/00 ,  H01M4/583 ,  H01M4/133 ,  H01M4/36 ,  H01M4/58 ,  H01M10/05 ,  H01M10/052 ,  H01M2/16 ,  H01M4/38 ,  H01M4/40 ,  H01M4/46 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0564 ,  H01M10/42

CPC classification number: H01M4/5835 ,  H01M2/162 ,  H01M2/1653 ,  H01M4/133 ,  H01M4/364 ,  H01M4/38 ,  H01M4/381 ,  H01M4/382 ,  H01M4/40 ,  H01M4/405 ,  H01M4/46 ,  H01M4/581 ,  H01M4/621 ,  H01M4/622 ,  H01M4/623 ,  H01M4/624 ,  H01M4/625 ,  H01M10/05 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0564 ,  H01M2010/4292 ,  Y02E60/122

Abstract: Electrochemical cells containing a stoichiometric capacity ratio of carbon-treated carbon monofluoride to carbon monofluoride being greater than 1:1 provide electrochemical cells having a tunable end-of-service indication.

Abstract translation: 含有碳处理的一氟化碳与一氟化碳的化学计量容量比的电化学电池大于1，提供具有可调整的使用终止指示的电化学电池。

公开(公告)号：US20240128568A1

公开(公告)日：2024-04-18

申请号：US18470721

申请日：2023-09-20

Applicant: Medtronic, Inc.

Inventor： Rajesh V. Iyer ,  Andrew J. Thom ,  Paul B. Young ,  Gaurav Jain ,  Venkat R. Gaddam ,  Ashutosh Mehra ,  Craig L. Schmidt

IPC: H01M50/227 ,  A61N1/378 ,  C08G61/10 ,  H01M50/117 ,  H01M50/233 ,  H01M50/247 ,  H01M50/296

CPC classification number: H01M50/227 ,  A61N1/3787 ,  C08G61/10 ,  H01M50/117 ,  H01M50/233 ,  H01M50/247 ,  H01M50/296 ,  H01M2220/30

Abstract: An example medical device includes a device housing configured to be implantable within a patient, the device housing including an internal surface in contact with a voltaic cell of the battery, and a battery external to the device housing and comprising a battery housing configured to be hermetically sealed. The battery is configured to provide electrical power to an electrical component housed within the device housing, and the battery housing is configured to be attached to the device housing. The battery housing includes an internal surface in contact with a voltaic cell of the battery, and an external surface in contact with the biocompatible electrical insulator. an external surface in contact with the biocompatible electrical insulator.

公开(公告)号：US20230024041A1

公开(公告)日：2023-01-26

申请号：US17886249

申请日：2022-08-11

Applicant: Medtronic, Inc.

Inventor： Hui Ye ,  Timothy T. Bomstad ,  Parthasarathy M. Gomadam ,  Gaurav Jain ,  Christian S. Nielsen ,  Prabhakar A. Tamirisa ,  Collette M. Vanelzen

IPC: H01M10/0568 ,  H01M4/38 ,  H01M4/54 ,  H01M4/583 ,  H01M10/052 ,  H01M10/0565 ,  H01M6/18 ,  H01M6/16 ,  H01M10/0569

Abstract: Separator and electrolyte composites include a porous self-supporting separator film between or adjacent one or two electrolyte films. The electrolyte films may contain a glyme or mixture of glymes, LiX salt and complexing agent, such as PEO. The porous self-supporting separator film may be used dry or wetted with a liquid electrolyte composition. Solid state batteries include the described separator and electrolyte composites in combination with an anode and a cathode.

公开(公告)号：US11005128B2

公开(公告)日：2021-05-11

申请号：US15838621

申请日：2017-12-12

Applicant: Medtronic, Inc.

Inventor： Laura E. Mccalla ,  Gaurav Jain

IPC: H01M50/409 ,  H01M4/485 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/44 ,  H01M4/02

Abstract: A lithium ion battery is provided that includes: a positive electrode; a negative electrode; a separator comprising a material having a melt temperature of greater than 150° C.; and an electrolyte including an organic solvent and a lithium salt. A method for sterilizing a lithium ion battery is also provided that includes: providing a lithium ion battery (particularly one as described herein); either charging or discharging the battery to a state of charge (SOC) of 20% to 100%; and steam sterilizing the battery to form a sterilized lithium ion battery.

公开(公告)号：US20180175462A1

公开(公告)日：2018-06-21

申请号：US15898331

申请日：2018-02-16

Applicant: Medtronic, Inc.

Inventor： ERIK R. SCOTT ,  Gaurav Jain

IPC: H01M10/44 ,  H01M10/0569 ,  H01M4/131 ,  H01M4/485 ,  H01M4/583 ,  H01M10/0525

CPC classification number: H01M10/446 ,  H01M4/131 ,  H01M4/485 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2010/4292 ,  H01M2300/0028 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49108

Abstract: A method of charging a battery includes applying a charging voltage to a lithium-ion battery for a period of time after the battery is fully charged. The battery includes a positive electrode having a positive active material, a negative electrode having a negative active material, and an electrolyte. The negative active material includes a lithium titanate material and has a capacity that is less than that of the positive electrode. The charging voltage is greater than a fully charged voltage of the battery, and applying the charging voltage for the period of time is sufficient to cause a zero volt crossing potential of the battery to increase to above a decomposition potential of the positive active material.

公开(公告)号：US09899710B2

公开(公告)日：2018-02-20

申请号：US14657759

申请日：2015-03-13

Applicant: Medtronic, Inc.

Inventor： Erik R. Scott ,  Gaurav Jain

IPC: H02J7/00 ,  H01M10/44 ,  H01M4/485 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/131 ,  H01M4/583 ,  H01M10/42

CPC classification number: H01M10/446 ,  H01M4/131 ,  H01M4/485 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2010/4292 ,  H01M2300/0028 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49108

Abstract: A method for producing a battery includes providing a battery having a positive electrode, a negative electrode, and an electrolyte that includes a solvent and a salt. The capacity of the negative electrode is less than that of the positive electrode and the negative electrode includes an active material having an average potential versus a lithium reference electrode of greater than approximately 0.2 volts. The method also includes applying an initial charge to the battery at a voltage that is greater than a fully charged voltage of the battery for a sufficient amount of time to cause at least a portion of the solvent to undergo a reduction reaction. The step of applying an initial charge to the battery acts to increase the irreversible capacity loss of the battery during the initial charge and provides the battery with enhanced tolerance to deep discharge conditions.