LITHIUM ION SECONDARY BATTERY
    3.
    发明公开

    公开(公告)号:EP4224594A1

    公开(公告)日:2023-08-09

    申请号:EP21874953.9

    申请日:2021-08-18

    摘要: This lithium ion secondary battery comprises a negative electrode, a positive electrode, a non-aqueous electrolyte including a lithium salt, and an aqueous electrolyte including a lithium salt, wherein: among the negative electrode and the positive electrode, the aqueous electrolyte contacts only the positive electrode; among the negative electrode and the positive electrode, the non-aqueous electrolyte contacts at least the negative electrode; the positive electrode contains a positive electrode active material; the positive electrode active material contains a lithium transition metal composite oxide and a surface modification layer formed on the surface of primary particles of the lithium transition metal composite oxide; and the surface modification layer contains an alkali earth metal element.

    SOUND VELOCITY CORRECTION DEVICE
    6.
    发明公开
    SOUND VELOCITY CORRECTION DEVICE 审中-公开
    SCHALLGESCHWINDIGKEITSKORREKTURVORRICHTUNG

    公开(公告)号:EP2975860A1

    公开(公告)日:2016-01-20

    申请号:EP15175324.1

    申请日:2015-07-03

    IPC分类号: H04R3/00 H04R1/40

    摘要: Provided a sound velocity correction device including an environmental parameter obtainer that acquires a measured value of a surrounding environmental parameter of a sound collector that collects a sound emitted from a sound source; and a sound velocity corrector that corrects a sound velocity of the sound which is used to form directivity in a directing direction toward the sound source from the sound collector, using the measured value of the surrounding environmental parameter of the sound collector which is acquired by the environmental parameter obtainer.

    摘要翻译: 提供一种声速校正装置,包括:环境参数获取器,其获取收集从声源发出的声音的收集器的周围环境参数的测量值; 以及音速校正器,其使用由所述收集器获取的所述收集器的周围环境参数的测量值来校正用于从所述收集器朝向所述声源的指向方向形成方向性的声音速度, 环境参数获取器。