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公开(公告)号:US10361406B1
公开(公告)日:2019-07-23
申请号:US15277867
申请日:2016-09-27
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor: David Wang , Ramez Nachman , James Robert Lim , Bryan Holmdahl , Yuting Yeh , Matthew Wong
IPC: H01M14/00 , H01M2/02 , H01M2/08 , H01M10/0525 , H01M10/42
Abstract: A power source, designed to be bent or flexed during use, may include a layer of anode material having a length greater than a layer of cathode material to accommodate for movement of the cathode or anode layers during flexing of the power source. An enclosure containing the cathode and anode materials may include an inner protective layer proximate to the cathode and anode layers and a water-impermeable layer external to the inner protective layer. The water-impermeable layer may have a pleated or corrugated configuration that may be extended when the power source is bent under application of a flexure stress, preventing damage or deformation to the water-impermeable layer.
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公开(公告)号:US09983621B1
公开(公告)日:2018-05-29
申请号:US14946307
申请日:2015-11-19
Applicant: Amazon Technologies, Inc.
Inventor: Anoop Menon , James Robert Lim , Yuting Yeh
IPC: G06F1/16
CPC classification number: G06F1/1626
Abstract: A power storage unit (e.g., a battery) may replace the structural components that support the display of an electronic device. The power storage unit may be adhered to the back surface of the display to provide structural support and to allow for bend or flex of the display. A self-healing layer may prevent or inhibit leaking of materials from within the power storage unit if the power storage unit is cracked or pierced. Alternatively, the power storage unit may be built on a flexible circuit that is associated with the display of the electronic device, where the flexible circuit/power storage unit may be folded around the display and affixed to the back surface of the display. The power storage unit may also be built on substrate associated with the back surface of the display. These configurations may cause a significant reduction in the depth or thickness of the electronic device.
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公开(公告)号:US10355319B1
公开(公告)日:2019-07-16
申请号:US15228696
申请日:2016-08-04
Applicant: Amazon Technologies, Inc.
Inventor: James Robert Lim , David Wang , Yuting Yeh , John Wang
IPC: H01M10/42 , H01M10/48 , H01M2/02 , H01M10/0525 , H01M2/34
Abstract: Systems, methods, and computer-readable media are disclosed for improved battery performance. The systems, methods, and computer-readable media described herein may improve user experiences and prolong the battery's life. In an example method described herein, a battery may be placed within a clamp or housing that applies configurable pressure to the battery. In turn, the applied pressure may counter the swelling pressure of the battery and improve the battery's power output, reduce the internal resistance or impedance, and improve the life cycle of the battery.
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公开(公告)号:US09502734B1
公开(公告)日:2016-11-22
申请号:US14223146
申请日:2014-03-24
Applicant: Amazon Technologies, Inc.
Inventor: James Robert Lim , Yuting Yeh , Erik Avy Vaknine , David Wang
CPC classification number: H01M10/0436 , H01M2/0207 , H01M4/02 , H01M4/13 , H01M10/045 , H01M10/0454 , H01M10/0525 , H01M10/058 , H01M10/3972 , H01M10/64
Abstract: Various embodiments are directed to flexible battery structures comprising a flexible hinge region. For example, a flexible battery structure may comprise a plurality of battery layers. A first portion of the layers may be continuous across the hinge region and one or more cell regions. A second portion of the layers may be discontinuous at the hinge region.
Abstract translation: 各种实施例涉及包括柔性铰链区域的柔性电池结构。 例如,柔性电池结构可以包括多个电池层。 层的第一部分可以跨越铰链区域和一个或多个细胞区域是连续的。 层的第二部分可以在铰链区域处是不连续的。
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公开(公告)号:US10884475B1
公开(公告)日:2021-01-05
申请号:US15698562
申请日:2017-09-07
Applicant: Amazon Technologies, Inc.
Inventor: John Wang , Matthew Wong , Marko Bundalo , Yuting Yeh , Kamran Mohajer , Vidhyananth Ramasamy Venkatasamy , Girish Sidhmalswamy Ghongdemath , Shuoqin Wang , Jason Allan Graetz
IPC: G06F1/32 , G01R31/36 , G06F1/3212 , G06F1/3287 , G01R31/367 , G01R31/389 , G01R31/3842
Abstract: A portable electronic device determines a battery available power for the device's battery and manages device power usage based upon the battery available power. The device includes a battery and a controller. The controller is configured to receive a first voltage value for the battery at a first time, a first current value for the battery, a second voltage value for the battery at a second time, and a second current value for the battery. It is determined that a time difference between the first time and the second time exceeds a predetermined time threshold. An estimated resistance of the battery is determined based at least on a first difference between the first current value and the second current value and a second difference between the first voltage value and the second voltage value. Real-time power usage of the device is controlled based on the estimated resistance of the battery.
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公开(公告)号:US10164220B1
公开(公告)日:2018-12-25
申请号:US14340236
申请日:2014-07-24
Applicant: Amazon Technologies, Inc.
Inventor: James Robert Lim , Poon-Keong Ang , Christopher Thomas Li , Yuting Yeh
Abstract: Aspects of the disclosure relate to graphene-based battery packaging. In one aspect, the graphene-based battery packaging can include an assembly of translucent members, including a thin graphene-based member which can be embodied or can comprise a film of graphene layers, a film of graphene oxide, or a combination thereof. In another aspect, the graphene-based member can be assembled to form an interlayer between two of the translucent members in the assembly. In certain aspects, each of the two translucent members can be embodied in or can include a thermoplastic material. In another aspect, at least one of the translucent members in the assembly can be doped with aggregates that provide a predetermined color to the assembly. In one aspect, the graphene-based member can provide substantive isolation between translucent members separated thereby, thus mitigating diffusion of atoms, molecules, and/or particulates between such members.
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公开(公告)号:US11316144B1
公开(公告)日:2022-04-26
申请号:US16521277
申请日:2019-07-24
Applicant: Amazon Technologies, Inc.
Inventor: Bhaskar Sompalli , Yuting Yeh
IPC: H01M4/1391 , H01M10/0525 , H01M4/62 , H01M50/116 , H01M4/02
Abstract: Systems, methods, and computer-readable media are disclosed for lithium-ion batteries with solid electrolyte membranes. In one embodiment, a battery cell may include a copper current collector, a first layer in contact with the copper current collector, the first layer comprising polyvinylidene fluoride, an anode comprising a first lithiated polymer binder configured to conduct lithium ions, where the first layer is disposed between the copper current collector and the anode, and a lithiated polymer electrolyte membrane in contact with the anode. The battery cell may include a cathode in contact with the lithiated polymer electrolyte membrane and comprising a second lithiated polymer binder configured to conduct lithium ions, a second layer in contact with the cathode, the second layer comprising polyvinylidene fluoride, and an aluminum current collector disposed adjacent to the second layer, wherein the aluminum current collector is a positive current collector.
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公开(公告)号:US10594145B1
公开(公告)日:2020-03-17
申请号:US15816191
申请日:2017-11-17
Applicant: Amazon Technologies, Inc.
Inventor: John Wang , Kamran Mohajer , Yuting Yeh
IPC: H02J7/00
Abstract: A system and method for operating a portable electronic device are presented. The device includes a battery and a controller. The controller is configured to execute instructions for determining a first resistance value for the battery during a first power cycle of the battery, and determining a second resistance value for the battery during a second power cycle of the battery. The second power cycle is after the first power cycle. The controller is configured to execute instructions for determining that a first difference equal to the first resistance value subtracted from the second resistance value is less than a first predetermined threshold value, and electrically isolating the battery. In an embodiment, the first resistance value and the second resistance values are determined at the same state of charge for the battery.
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公开(公告)号:US10147926B1
公开(公告)日:2018-12-04
申请号:US14253433
申请日:2014-04-15
Applicant: Amazon Technologies, Inc.
Inventor: James Robert Lim , Yuting Yeh , Robert Nasry Hasbun , Poon-Keong Ang
Abstract: In an implementation, an electrode is produced that includes a recessed region of an electrode material layer. The electrode can be part of a battery that provides power to an electronic device. The recessed region can expose a portion of a metal layer of the electrode. A tab can be coupled to the exposed portion of the metal layer. The tab can provide an external connection for the battery to provide power to components of the electronic device. The battery can be included in a battery package that includes a packaging material. A sealing material can be used to seal the tab at a location of the battery package where the tab extends beyond a periphery of the battery package.
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公开(公告)号:US10321588B1
公开(公告)日:2019-06-11
申请号:US15276417
申请日:2016-09-26
Applicant: Amazon Technologies, Inc.
Inventor: Bryan Holmdahl , James Robert Lim , Yuting Yeh , David Wang , Kok Yen Cheng
Abstract: Systems, methods, and computer-readable media are disclosed for a flexible battery. The systems, methods, and computer-readable media described herein may improve user experiences and prolong the battery's life. In an example embodiment described herein, a flexible battery may comprise a first battery portion positioned in a grip portion and having a first thickness, and a second battery portion positioned in a second portion having a second thickness that is less than the first thickness, wherein the second battery portion is bendable in the at least one direction, and the first battery portion is rigid.
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