NEURAL NETWORK, POWER STORAGE SYSTEM, VEHICLE, AND ELECTRONIC DEVICE

    公开(公告)号:US20210288357A1

    公开(公告)日:2021-09-16

    申请号:US16603487

    申请日:2018-04-20

    Abstract: A power storage system with excellent characteristics is provided. A power storage system with a high degree of safety is provided. A power storage system with less deterioration is provided. A storage battery with excellent characteristics is provided. The power storage system includes a neural network and a storage battery. The neural network includes an input layer, an output layer, and one or more hidden layers between the input layer and the output layer. The predetermined hidden layer is connected to the previous hidden layer or the previous input layer by a predetermined weight coefficient, and connected to the next hidden layer or the next output layer by a predetermined weight coefficient. In the storage battery, voltage and time at which the voltage is obtained are measured as one of sets of data. The sets of data measured at different times are input to the input layer and the operational condition of the storage battery is changed in accordance with a signal output from the output layer.

    ANOMALY DETECTION SYSTEM FOR SECONDARY BATTERY

    公开(公告)号:US20210190471A1

    公开(公告)日:2021-06-24

    申请号:US17263170

    申请日:2019-07-24

    Abstract: An anomaly detection system that outputs an anomaly detection signal before a safety valve of a secondary battery is opened is provided. The anomaly detection system includes a strain sensor, a memory, and a comparator. The memory has a function of retaining an analog potential, and the comparator has a function of comparing a potential output by the strain sensor and the analog potential retained by the memory. The strain sensor is attached to the secondary battery before use, and a predetermined potential is retained in the memory. When a housing of the secondary battery expands while the secondary battery is used, and the potential output by the strain sensor becomes higher (or lower) than the predetermined potential, an anomaly detection signal is output.

    SECONDARY BATTERY AND ELECTRONIC DEVICE

    公开(公告)号:US20210005853A1

    公开(公告)日:2021-01-07

    申请号:US17000941

    申请日:2020-08-24

    Inventor: Ryota TAJIMA

    Abstract: A secondary battery with high capacity per unit volume can be provided. A flexible secondary battery with a novel structure can be provided. A secondary battery that can be bent repeatedly can be provided. A highly reliable secondary battery can be provided. A long-life secondary battery can be provided. A secondary battery comprises an inner structure and an exterior body that surrounds the inner structure. The inner structure comprises a positive electrode and a negative electrode. The exterior body comprises a first exterior film and a second exterior film. A region comprising reduced graphene oxide lies between the first exterior film and the second exterior film. The graphene oxide preferably comprises a region where the concentration of oxygen is higher than or equal to 2 atomic percent and lower than or equal to 20 atomic percent.

    SEMICONDUCTOR DEVICE, BATTERY UNIT, AND BATTERY MODULE

    公开(公告)号:US20200295413A1

    公开(公告)日:2020-09-17

    申请号:US16640233

    申请日:2018-08-28

    Abstract: A semiconductor device capable of monitoring the state of a battery or the like is provided. The states of a plurality of batteries in a battery module is easily acquired. The semiconductor device that can be attached to an electrode of a battery or the like includes a first substrate, an element layer, and first to third conductive layers. The element layer includes a first circuit and a second circuit and is provided on a side of a first surface of the first substrate. The first conductive layer and the second conductive layer are provided on a side of a second surface positioned opposite to the first surface of the first substrate. The first circuit is electrically connected to each of the first conductive layer and the second conductive layer through an opening provided in the first substrate. The third conductive layer is provided to be stacked on a side opposite to the first substrate side of the element layer and electrically connected to the second circuit. The first conductive layer and the second conductive layer each function as a terminal, and the third conductive layer functions as an antenna.

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