公开(公告)号：US20230198275A1

公开(公告)日：2023-06-22

申请号：US17553351

申请日：2021-12-16

Applicant: Medtronic, Inc.

Inventor： Kaimin Chen ,  Martin D. Donakowski

IPC: H02J7/00 ,  A61N1/378 ,  A61N1/37 ,  G01R31/392 ,  G01R31/3835

CPC classification number: H02J7/005 ,  H02J7/007188 ,  A61N1/378 ,  A61N1/3708 ,  G01R31/392 ,  G01R31/3835

Abstract: A state of health of a battery may be determined based on a voltage of the battery and a rate of voltage change of the battery. A first voltage of a battery may be measured, and it may be determined that the first voltage is equal to or greater than a voltage threshold level. In response, a second voltage of the battery may be measured at a conclusion of a predetermined time period. Such predetermined time period may begin when the first voltage is measured. The rate of voltage change may be determined based on the first voltage, the second voltage, and the predetermined time period.

公开(公告)号：US20240234810A9

公开(公告)日：2024-07-11

申请号：US17970014

申请日：2022-10-20

Applicant: Medtronic, Inc.

Inventor： Kaimin Chen

IPC: H01M10/0565 ,  H01M4/04 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0568

CPC classification number: H01M10/0565 ,  H01M4/043 ,  H01M4/382 ,  H01M4/625 ,  H01M10/0568 ,  H01M2004/028

Abstract: An electrochemical cells and methods of forming the same are described. An electrochemical cell includes an anode, a cathode, a separator, and a liquid electrolyte. The cathode includes an active material, a conductive material, a binder, and a gelling electrolyte. The separator is arranged between the anode and the cathode. The separator is configured to prevent direct contact between the anode and the cathode. The liquid electrolyte transports ions between the cathode and the anode.

公开(公告)号：US20240136575A1

公开(公告)日：2024-04-25

申请号：US17970014

申请日：2022-10-19

Applicant: Medtronic, Inc.

Inventor： Kaimin Chen

IPC: H01M10/0565 ,  H01M4/04 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0568

CPC classification number: H01M10/0565 ,  H01M4/043 ,  H01M4/382 ,  H01M4/625 ,  H01M10/0568 ,  H01M2004/028

Abstract: An electrochemical cells and methods of forming the same are described. An electrochemical cell includes an anode, a cathode, a separator, and a liquid electrolyte. The cathode includes an active material, a conductive material, a binder, and a gelling electrolyte. The separator is arranged between the anode and the cathode. The separator is configured to prevent direct contact between the anode and the cathode. The liquid electrolyte transports ions between the cathode and the anode.

公开(公告)号：US10661090B2

公开(公告)日：2020-05-26

申请号：US15386160

申请日：2016-12-21

Applicant: Medtronic, Inc.

Inventor： Kaimin Chen ,  Gaurav Jain

IPC: A61B5/02 ,  A61N1/378 ,  H01M6/02 ,  H01M4/04 ,  H01M4/583 ,  H01M4/38 ,  A61N1/39 ,  A61B5/046 ,  A61N1/365 ,  A61N1/372 ,  A61B5/0456 ,  H01M4/1393 ,  H01M4/62

Abstract: An implantable medical device comprising a battery cell including: an anode; a cathode including fluorinated carbon particles; a separator between the anode and the cathode; and an electrolyte contacting the anode, the cathode, and the separator; wherein greater than 50 vol-% of the fluorinated carbon particles have a particle size within a range of 2 microns to 10 microns, and greater than 50% by number have an aspect ratio within a range of 1:1.2 to 1:8.

公开(公告)号：US10193154B2

公开(公告)日：2019-01-29

申请号：US13755994

申请日：2013-01-31

Applicant: Medtronic, Inc.

Inventor： Kaimin Chen

IPC: H01M4/54 ,  H01M4/06 ,  H01M4/62 ,  H01M6/16 ,  A61N1/378 ,  H01M4/36 ,  H01M4/58 ,  A61N1/375

Abstract: In some examples, a primary battery comprising a cathode comprising at least one active material and at least one of a metal oxide and metal fluoride, wherein the active material exhibits a first discharge capacity and the at least one of metal oxide and metal fluoride exhibits a second discharge capacity at a voltage lower than the first discharge capacity; an anode comprising a metal as an electron source; and an electrolyte between the cathode and anode. The metal reacts with the electrolyte below a third discharge capacity at a voltage lower than the second discharge capacity to form a gas, where the metal reacts with the active material at the first discharge capacity, and, following the consumption of the active material of the cathode, the metal reacts with the at least one of metal oxide and metal fluoride of the cathode prior to reacting with the electrolyte below the third discharge capacity.

公开(公告)号：US20230258732A1

公开(公告)日：2023-08-17

申请号：US18095287

申请日：2023-01-10

Applicant: Medtronic, Inc.

Inventor： Martin D. Donakowski ,  Kaimin Chen

IPC: G01R31/392 ,  G01R31/378 ,  G01R31/387 ,  G01R31/36 ,  G01R31/389

CPC classification number: G01R31/392 ,  G01R31/378 ,  G01R31/387 ,  G01R31/3647 ,  G01R31/389

Abstract: A method for determining a depth of discharge of an electrochemical cell includes (i)) providing one or more alkaline electrochemical cells comprising Ag2O—Zn; (ii) applying a varying voltage potential to the one or more alkaline electrochemical cells, (iii) measuring an output current response of the one or more alkaline electrochemical cells, the output current response comprising a phase response as a function of frequency; and (iv) determining a depth of discharge of the one or more alkaline electrochemical cells based on a linear relationship of the depth of discharge with the phase response.

公开(公告)号：US20150311532A1

公开(公告)日：2015-10-29

申请号：US14261573

申请日：2014-04-25

Applicant: Medtronic, Inc.

Inventor： Kaimin Chen ,  Gaurav Jain

IPC: H01M4/62 ,  H01M10/052 ,  H01M4/485 ,  H01M4/583 ,  H01M4/36 ,  H01M4/54

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.

Abstract translation: 描述了含有活性材料和碳纳米管的阴极。 在阴极材料中使用碳纳米管可以提供一种具有比含有使用常规导电添加剂如炭黑或石墨的阴极的电池具有增加的寿命和体积容量的电池。

公开(公告)号：US20140212736A1

公开(公告)日：2014-07-31

申请号：US13755994

申请日：2013-01-31

Applicant: MEDTRONIC, INC.

Inventor： Kaimin Chen

IPC: H01M4/54

CPC classification number: H01M4/54 ,  A61N1/375 ,  A61N1/378 ,  H01M4/06 ,  H01M4/364 ,  H01M4/58 ,  H01M4/628 ,  H01M6/16

Abstract: In some examples, a primary battery comprising a cathode comprising at least one active material and at least one of a metal oxide and metal fluoride, wherein the active material exhibits a first discharge capacity and the at least one of metal oxide and metal fluoride exhibits a second discharge capacity at a voltage lower than the first discharge capacity; an anode comprising a metal as an electron source; and an electrolyte between the cathode and anode. The metal reacts with the electrolyte below a third discharge capacity at a voltage lower than the second discharge capacity to form a gas, where the metal reacts with the active material at the first discharge capacity, and, following the consumption of the active material of the cathode, the metal reacts with the at least one of metal oxide and metal fluoride of the cathode prior to reacting with the electrolyte below the third discharge capacity.

Abstract translation: 在一些实例中，包括包含至少一种活性材料和金属氧化物和金属氟化物中的至少一种的阴极的一次电池，其中所述活性材料表现出第一放电容量，并且所述金属氧化物和金属氟化物中的至少一种表现出 在比第一放电容量低的电压下的第二放电容量; 包含作为电子源的金属的阳极; 以及阴极和阳极之间的电解质。 该金属在低于第二放电容量的电压下与第三放电容量反应形成气体，其中金属以第一放电容量与活性材料反应，并且在消耗了 在与第三放电容量之下的电解液反应之前，金属与阴极的金属氧化物和金属氟化物中的至少一种反应。

公开(公告)号：US20140186713A1

公开(公告)日：2014-07-03

申请号：US13754970

申请日：2013-01-31

Applicant: MEDTRONIC, INC.

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

IPC: H01M4/583

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：US20230318097A1

公开(公告)日：2023-10-05

申请号：US18114027

申请日：2023-02-24

Applicant: Medtronic, Inc.

Inventor： Gaurav Jain ,  Prabhakar A. Tamirisa ,  Kaimin Chen

IPC: H01M50/124 ,  H01M50/491 ,  H01M10/0565 ,  H01M10/0525

CPC classification number: H01M50/1243 ,  H01M50/491 ,  H01M10/0565 ,  H01M10/0525 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: A battery including a conductive housing, a header assembly, and electrode assembly where the electrode assembly includes a solid-state electrolyte. A battery including a conductive housing having an inner surface and an outer surface, a header assembly, an electrode assembly, and an electrically insulative coating on at least a portion of the inner surface of the conductive housing.