公开(公告)号：US20230420643A1

公开(公告)日：2023-12-28

申请号：US18465801

申请日：2023-09-12

Applicant: Maxwell Technologies, Inc.

Inventor： Hieu Minh Duong ,  Yudi Yudi ,  Ziying Wang ,  Joon Ho Shin

IPC: H01M4/139 ,  H01G11/26 ,  H01G11/52 ,  H01G11/86 ,  H01M4/13 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/04

CPC classification number: H01M4/139 ,  H01G11/26 ,  H01G11/52 ,  H01G11/86 ,  H01M2004/021 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/0404 ,  H01M2220/20 ,  H01M4/13

Abstract: Proposed are methods for manufacturing intermittently coated dry electrodes for energy storage devices and energy storage devices including the intermittently coated dry electrodes. In one embodiment, the method includes providing a metal layer and providing an electrochemically active free-standing film formed of a dry active material. The method also includes combining the electrochemically active free-standing film and the metal layer to form a combined layer. The method further includes removing a portion of the electrochemically active free-standing film from the combined layer so that the electrochemically active free-standing film is intermittently formed on the metal layer in a longitudinal direction of the metal layer.

公开(公告)号：US20210234173A1

公开(公告)日：2021-07-29

申请号：US17227110

申请日：2021-04-09

Applicant: Maxwell Technologies, Inc.

Inventor： Ziying Wang ,  Haim Feigenbaum ,  Hieu Minh Duong

IPC: H01M4/62 ,  H01M4/96 ,  H01M10/0564 ,  H01G11/86 ,  H01G11/28 ,  H01G11/34 ,  H01M4/04 ,  H01M4/139

Abstract: Materials and methods for preparing electrode film mixtures and electrode films including reduced damage bulk active materials are provided. In a first aspect, a method for preparing an electrode film mixture for an energy storage device is provided, comprising providing an initial binder mixture comprising a first binder and a first active material, processing the initial binder mixture under high shear to form a secondary binder mixture, and nondestructively mixing the secondary binder mixture with a second portion of active materials to form an electrode film mixture.

公开(公告)号：US10797503B2

公开(公告)日：2020-10-06

申请号：US16107937

申请日：2018-08-21

Applicant: Maxwell Technologies, Inc.

Inventor： David Rechel ,  Mikael Setterberg ,  Stefan Werkstetter

IPC: H02J7/00 ,  H02J7/34 ,  H02J1/12

Abstract: An apparatus for storing energy includes a plurality of energy storage cells, a switching circuit configured to control a transient voltage support to a battery provided by the plurality of energy storage cells, a charging circuit configured to charge the plurality of energy storage cells, and a processing system. The processing system is configured to control the charging circuit to charge the plurality of energy storage cells, and control the switching circuit to control the transient voltage support of the plurality of energy storage cells to the battery. The switching circuit and the charging circuit provide parallel paths between the plurality of energy storage cells and the battery terminal.

公开(公告)号：US20200176759A1

公开(公告)日：2020-06-04

申请号：US16665430

申请日：2019-10-28

Applicant: Maxwell Technologies, Inc.

Inventor： Hieu Minh Duong ,  Porter Mitchell ,  Mohammed-Yazid Saidi

IPC: H01M4/36 ,  H01M4/1395 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/134 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/587 ,  H01M4/38 ,  H01G11/86 ,  H01G11/52 ,  H01G11/50 ,  H01G11/42

Abstract: An energy storage device can include a first electrode, a second electrode and a separator between the first electrode and the second electrode wherein the first electrode or the second electrode includes elemental lithium metal and carbon particles. A method for fabricating an energy storage device can include forming a first electrode and a second electrode, and inserting a separator between the first electrode and the second electrode, where forming the first electrode or the second electrode can include combining elemental lithium metal and a plurality of carbon particles.

公开(公告)号：US10547057B2

公开(公告)日：2020-01-28

申请号：US15374043

申请日：2016-12-09

Applicant: MAXWELL TECHNOLOGIES, INC.

Inventor： Porter Mitchell ,  Xiaomei Xi ,  Linda Zhong ,  Bin Zou

IPC: H01M4/62 ,  H01G11/38 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/50 ,  H01M4/58 ,  H01M4/587 ,  H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M10/052 ,  H01G11/28 ,  H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/583

Abstract: Dry process based energy storage device structures and methods for using a dry adhesive therein are disclosed.

公开(公告)号：US20190237748A1

公开(公告)日：2019-08-01

申请号：US16184892

申请日：2018-11-08

Applicant: Maxwell Technologies, Inc.

Inventor： Joon Ho Shin ,  Hieu Minh Duong ,  Haim Feigenbaum

IPC: H01M4/131 ,  H01M4/133 ,  H01M4/62 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M4/131 ,  C01G53/04 ,  C08L1/00 ,  H01M4/0404 ,  H01M4/133 ,  H01M4/525 ,  H01M4/587 ,  H01M4/622 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

Abstract: Provided herein are energy storage devices comprising at least one dry process, self-supporting electrode film having improved performance. The improved performance may be realized as improved electrode material loading, improved active material loading, improved active material density, improved areal capacity, improved specific capacity, improved areal energy density, improved energy density, improved specific energy density, or improved Coulombic efficiency.

公开(公告)号：US09715970B2

公开(公告)日：2017-07-25

申请号：US14047593

申请日：2013-10-07

Applicant: Maxwell Technologies, Inc.

Inventor： Priya Bendale ,  Robert Crawford ,  Porter Mitchell ,  Jeffrey Nelson ,  Doug Schafer ,  Xiaomei Xi

IPC: H01G9/00 ,  H01G9/02 ,  H01M6/04 ,  H01G9/022 ,  H01G11/14 ,  H01G11/78 ,  H01G11/84 ,  H01G11/32 ,  H01G11/24 ,  H01G11/28 ,  H01G11/34 ,  H01G11/38 ,  H01G11/62 ,  H01G11/82 ,  H01G11/68

CPC classification number: H01G11/14 ,  H01G11/24 ,  H01G11/28 ,  H01G11/32 ,  H01G11/34 ,  H01G11/38 ,  H01G11/52 ,  H01G11/62 ,  H01G11/68 ,  H01G11/78 ,  H01G11/82 ,  H01G11/84 ,  H01G11/86 ,  Y02E60/13 ,  Y10T29/417

Abstract: An electric double-layer ultracapacitor configured to maintain desired operation at an operating voltage of three volts, where the capacitor includes a housing component, a first and a second current collector, a positive and a negative electrode electrically coupled to one of the first and second current collectors, and a separator positioned between the positive and the negative electrode. The capacitor may also include an electrolyte in ionic contact with the electrodes and the separator, the electrolyte having acetonitrile and a quaternary ammonium salt with a molarity of less than one.

公开(公告)号：US09653824B2

公开(公告)日：2017-05-16

申请号：US15091864

申请日：2016-04-06

Applicant: Maxwell Technologies, Inc.

Inventor： Kevin T. Stone ,  Steven Watts ,  Steven R. Shelton ,  Douglas G. Schafer ,  Ishmael D. Rahimian

IPC: H01R11/11 ,  H01M2/20 ,  H01R11/28 ,  H01M10/613 ,  H01G9/008 ,  H01G11/10 ,  H01R11/01 ,  H01M10/6551 ,  H01M10/6561

CPC classification number: H01R11/11 ,  F28F3/022 ,  F28F3/12 ,  H01G9/008 ,  H01G11/10 ,  H01M2/204 ,  H01M2/206 ,  H01M10/613 ,  H01M10/6551 ,  H01M10/6561 ,  H01R11/01 ,  H01R11/288

Abstract: An energy storage system is disclosed. The energy storage system includes a first energy storage cell, a second energy storage cell, and a first interconnect connecting the first and second cells. The interconnect includes a support member and a plurality of protrusions extending away from the support member. At least two protrusions are spaced relative to each other along a longitudinal axis of the interconnect.

公开(公告)号：US20160301221A1

公开(公告)日：2016-10-13

申请号：US15061290

申请日：2016-03-04

Applicant: Maxwell Technologies, Inc.

Inventor： Ilya Kaminsky

IPC: H02J7/00

CPC classification number: H02J7/0014 ,  B60L3/0046 ,  B60L58/22 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2250/10 ,  H02J7/0021 ,  H02J7/0026 ,  Y02T10/7005 ,  Y02T10/7061

Abstract: Disclosed are systems and methods for improved cell-balancing circuits, back-up failure detection circuits and alarm extension for cells and modules of an energy storage system. One aspect of the invention comprises an energy storage device cell balancing apparatus. The apparatus comprises a first and a second dissipative component connected in series. The first dissipative component and the second dissipative component are coupled to an energy storage cell. The second dissipative component monitors a voltage of the energy storage cell and, if the voltage is at or above a reference voltage, the second dissipative component conducts a discharging current through the first and second dissipative components. The first dissipative component maintains a voltage drop across the first dissipative component that is proportional to the voltage of the energy storage cell. The second dissipative component maintains a constant voltage drop across the second dissipative component when conducting the discharging current.

Abstract translation: 公开了用于改善电池平衡电路，备用故障检测电路和能量存储系统的电池和模块的警报扩展的系统和方法。 本发明的一个方面包括一种储能装置电池平衡装置。 该装置包括串联连接的第一和第二耗散部件。 第一耗散部件和第二耗散部件耦合到能量存储单元。 第二耗散元件监视能量存储单元的电压，并且如果电压等于或高于参考电压，则第二耗散元件通过第一和第二耗散元件传导放电电流。 第一耗散元件保持与能量存储单元的电压成比例的第一耗散元件的电压降。 当进行放电电流时，第二耗散元件在第二耗散元件上保持恒定的电压降。

公开(公告)号：USD759593S1

公开(公告)日：2016-06-21

申请号：US29519359

申请日：2015-03-04

Applicant: Maxwell Technologies, Inc.

Designer： Kevin T. Stone ,  Steven Watts ,  Steven Shelton ,  Ishmael Rahimian