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    Portable electronic device with accessible-charge indicator
    11.
    发明授权
    Portable electronic device with accessible-charge indicator 有权

    公开(公告)号：US10044075B2

    公开(公告)日：2018-08-07

    申请号：US15263088

    申请日：2016-09-12

    Applicant: Apple Inc.

    Inventor： Nalin Chaturvedi ,  Stephen D. Sterz ,  Soundararajan Manthiri

    IPC: H01M10/63 ,  H01M10/48 ,  H01M10/42

    CPC classification number: H01M10/488 ,  H01M10/425 ,  H01M10/48 ,  H01M10/486 ,  H01M2010/4278 ,  H01M2220/30

    Abstract: An electronic device that displays a battery status is described. In particular, based on the occurrence or presence of an environmental condition (such as an extrinsic environmental factor and/or a current electronic-device usage factor), the electronic device may determine an inaccessible-charge condition of a battery in the electronic device. For example, the environmental condition may include: a temperature of the battery less than the temperature threshold value; and/or a discharge rate of the battery greater than the discharge threshold value. In response to the inaccessible-charge condition, the electronic device may display indications of two or more battery-charge parameters, including: an accessible battery charge, an inaccessible battery charge that is currently unavailable for use because of the environmental condition, and/or a total battery charge.

    CELL VOLTAGE SENSING FOR RECHARGEABLE BATTERY PACKS
    12.
    发明申请
    CELL VOLTAGE SENSING FOR RECHARGEABLE BATTERY PACKS 审中-公开
    用于可充电电池组的电池电压检测

    公开(公告)号：US20160093921A1

    公开(公告)日：2016-03-31

    申请号：US14804121

    申请日：2015-07-20

    Applicant: Apple Inc.

    Inventor： Karthik Kadirvel ,  Soundararajan Manthiri ,  Salvatore Reddiconto ,  Liquan Tan

    IPC: H01M10/42 ,  H01M2/34 ,  H01M10/48 ,  H01M2/30 ,  H02J7/00 ,  G01R31/36

    CPC classification number: H01M10/425 ,  G01R31/3835 ,  G01R31/396 ,  H01M2/30 ,  H01M2/34 ,  H01M10/48 ,  H01M2010/4271 ,  H01M2200/00 ,  H02J7/0021 ,  H02J7/0026 ,  H02J7/0031 ,  H02J7/0052 ,  H02J2007/0059

    Abstract: A battery system has positive and negative pack terminals, and positive and negative sense terminals. An electrochemical cell assembly has positive and negative cell terminals. An electrically conductive power path has a positive leg that connects the positive cell terminal to the positive pack terminal, and a negative leg that connects the negative cell terminal to the negative pack terminal. A power switch circuit is connected in the power path. An electrically conductive sense path separate from the power path has a positive leg that connects the positive cell terminal to the positive sense terminal, and a negative leg that connects to the negative sense terminal. A sense switch circuit is connected in the sense path. Other embodiments are also described and claimed.

    Abstract translation: 电池系统具有正负极端子，正极和负极端子。 电化学电池组件具有正和负电池端子。 导电功率路径具有将正极端子连接到正极端子的正极腿和将负极端子连接到负极端子的负极腿。 电源开关电路连接在电源通路中。 与功率路径分离的导电感测通路具有将正极端子连接到正极端子的正极腿和连接到负极端子的负极腿。 感测开关电路连接在感测路径中。 还描述和要求保护其他实施例。

    Protection of parallel connected cells in battery packs
    14.
    发明授权
    Protection of parallel connected cells in battery packs 有权

    公开(公告)号：US10355497B2

    公开(公告)日：2019-07-16

    申请号：US15154345

    申请日：2016-05-13

    Applicant: Apple Inc.

    Inventor： Karthik Kadirvel ,  Soundararajan Manthiri

    IPC: H02J7/00 ,  H02J7/34

    Abstract: In general, techniques are disclosed for providing short circuit protection to a battery pack having a number of battery cells, at least some of which are connected in parallel. Short circuit protection is provided by using pairs of electronic switches (e.g., integrated circuits consisting of a pair of transistors designed as battery charge/discharge switches) serially connected between one terminal of a battery cell and a battery pack's common node—a position which is upstream of conventional battery pack fault controllers. The state of all such switches may be controlled by a control unit that is also upstream of a conventional fault controller. The combination of switch pairs and control unit can provide a battery pack with over current (short circuit) protection without the use of thermal cutoff devises. The described devices and systems can also provide over voltage, under voltage and over temperature protection.

    METHODS FOR DETERMINING AND CONTROLLING BATTERY EXPANSION
    16.
    发明申请
    METHODS FOR DETERMINING AND CONTROLLING BATTERY EXPANSION 有权
    用于确定和控制电池膨胀的方法

    公开(公告)号：US20160064780A1

    公开(公告)日：2016-03-03

    申请号：US14838395

    申请日：2015-08-28

    Applicant: Apple Inc.

    Inventor： Daniel W. Jarvis ,  David M. DeMuro ,  Hongli Dai ,  Julian Malinski ,  Julien Marcil ,  Meng Chi Lee ,  Richard Hung Minh Dinh ,  Rishabh Bhargava ,  Steven D. Sterz ,  Richard M. Mank ,  Soundararajan Manthiri ,  Vijayasekaran Boovaragavan

    IPC: H01M10/42

    CPC classification number: H01M10/4257 ,  G01R31/3606 ,  H01M10/44 ,  H01M10/445 ,  H01M10/48 ,  H01M2010/4271 ,  H01M2220/30

    Abstract: Methods and systems for detecting and compensating for expansion of rechargeable batteries over time. An expansion detector may be coupled to or positioned proximate a rechargeable battery to monitor for expansion thereof. After expansion exceeding a selected threshold is detected, the expansion detector may report the expansion to an associated processing unit. The processing unit may undertake to arrest further rechargeable battery expansion by modifying or changing one or more characteristics of charging and/or discharging circuitry coupled to the rechargeable battery. For example, the processing unit may charge the rechargeable battery at a lower rate or with reduced voltage after detecting expansion.

    Abstract translation: 随着时间的推移，可充电电池的扩展检测和补偿的方法和系统。 扩展检测器可以耦合到或靠近可再充电电池定位以监测其扩展。 在扩展超过所选择的阈值之后，扩展检测器可以将扩展报告给相关的处理单元。 处理单元可以通过修改或改变耦合到可再充电电池的充电和/或放电电路的一个或多个特性来进一步阻止进一步的充电电池膨胀。 例如，处理单元可以在检测到扩展后以较低的速率或降低的电压对可充电电池充电。

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