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

IPC: H01M2/26 ,  H01M10/052 ,  H05K5/00 ,  H01M2/02 ,  H01M10/04 ,  H05K5/02

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.

公开(公告)号：US11662391B1

公开(公告)日：2023-05-30

申请号：US17073573

申请日：2020-10-19

Applicant: Amazon Technologies, Inc.

Inventor： Ramez Nachman ,  Don Brunnett ,  Bryan Holmdahl ,  Benjamin Thomas Gaide

IPC: G01R31/385 ,  G01R31/367 ,  H01M10/44 ,  H01M10/42 ,  H01M50/569

CPC classification number: G01R31/385 ,  G01R31/367 ,  H01M10/4285 ,  H01M10/446 ,  H01M50/569

Abstract: Systems, methods, and computer-readable media are disclosed for dynamic adjustments to battery parameters using battery metrics. The device may be configured to determine a first value indicative of a battery voltage output during a first time interval, determine a second value indicative of a temperature during the first time interval, and determine a first acceleration factor for the battery during the first time interval based at least in part on the first value and the second value. The device may determine an adjusted number of charge cycles completed during the first time interval using the first acceleration factor, determine a total adjusted number of charge cycles of the battery, determine that the total adjusted number of charge cycles is equal to or greater than a first threshold, and cause the first maximum output voltage value to be reduced.

公开(公告)号：US11451068B1

公开(公告)日：2022-09-20

申请号：US16551170

申请日：2019-08-26

Applicant: Amazon Technologies, Inc.

Inventor： Ramez Nachman ,  Bryan Holmdahl ,  Don Brunnett ,  Benjamin Thomas Gaide

IPC: H02J7/00 ,  G01K1/14 ,  G01R31/3835 ,  G01R31/367

Abstract: Systems, methods, and computer-readable media are disclosed for battery-specific adjustments to maximum battery voltage. In one embodiment, an example device may include a battery, at least one memory that stores computer-executable instructions, and at least one processor. The device may be configured to determine a first value indicative of a first length of time the battery was at a first voltage and a first temperature, determine a second value indicative of a second length of time the battery was at a second voltage and a second temperature, determine that a sum of the first value and the second value satisfies a first threshold, and cause a maximum output voltage value to be reduced from a first maximum output voltage value to a second maximum output voltage value.

公开(公告)号：US09892691B1

公开(公告)日：2018-02-13

申请号：US15196722

申请日：2016-06-29

Applicant: Amazon Technologies, Inc.

Inventor： James Robert Lim ,  Bryan Holmdahl ,  Mudit Sunilkumar Khasgiwala ,  Chang Hwa Rob Yang ,  Vidhyananth Ramasamy Venkatasamy

IPC: G09G3/34 ,  G06F1/32 ,  G06F3/0483

CPC classification number: G09G3/3406 ,  G06F1/3212 ,  G06F1/325 ,  G06F1/3265 ,  G06F1/3293 ,  G06F3/0483 ,  G06F3/147 ,  G09G5/10 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2370/16 ,  G09G2380/14

Abstract: Systems and methods are provided for optimizing battery life in an electronic device. The device is configured to make periodic assessments of battery capacity by measuring the DC resistance value of the battery cell. The temperature of the battery cell and/or other characteristics of the device are used to determine a threshold DC resistance level. If the measured DC resistance value reaches a determined threshold level, the device can initiate a power-saving mode in which an operating parameter of the device is adjusted to decrease power consumption.

公开(公告)号：US10804717B1

公开(公告)日：2020-10-13

申请号：US15832487

申请日：2017-12-05

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Benjamin Thomas Gaide ,  Bryan Holmdahl

IPC: H02J7/00

Abstract: A resettable battery input control apparatus includes disconnect circuitry that allows for a battery or other power source to be disconnected from a load in an electronic device. A processor, such as a power management integrated circuit, may assess operating data indicative of operation of the electronic device. If the processor determines a fault condition, the disconnect circuitry is activated. In the event that the processor itself fails, the disconnect circuitry will fail safe and disconnect the battery from the load. Once disconnected, the battery remains disconnected until external power is applied. In one implementation the disconnect circuitry may comprise a field-effect transistor acting as a low-side switch that operates to disconnect the negative terminal of the battery from the load.

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.