Ultrathin triboelectric nanogenerator and application thereof

    公开(公告)号:US11621652B2

    公开(公告)日:2023-04-04

    申请号:US17483977

    申请日:2021-09-24

    Abstract: Present invention is related to an ultrathin triboelectric nanogenerator having a positive assembly layer and a negative assembly layer electrically connected together. The positive assembly layer comprises a positive layer and a first electrode. The negative assembly layer comprises a negative layer and a second electrode. The said first electrode and the said second electrode are electrically connected with each other. The positive layer could be a foam layer with under 90 μm thickness and less than 60 μm pore size. The present invention firstly provides the ultrathin triboelectric nanogenerator with PU foam as the positive layer which could achieve better electrical performance compared to any conventional triboelectric nanogenerator.

    Electrospun Nanofibrous Membranes and Disposable Glucose Biosensor
    3.
    发明申请
    Electrospun Nanofibrous Membranes and Disposable Glucose Biosensor 有权
    电纺纳米纤维膜和一次性葡萄糖生物传感器

    公开(公告)号:US20160153025A1

    公开(公告)日:2016-06-02

    申请号:US14791872

    申请日:2015-07-06

    Abstract: An electrospun nanofibrous membrane being sheet like and being formed by comprising multiple glucose oxidase/potassium hexacyanoferrate (III) modified electrospun nanofibers, wherein the glucose oxidase/potassium hexacyanoferrate (III) modified electrospun nanofibers are PVA electrospun nanofibers containing glucose oxidase and potassium hexacyanoferrate (III) homogeneously dispersed therein; and the glucose oxidase/potassium hexacyanoferrate (III) modified electrospun nanofibers are PVA electrospun nanofibers and are cross-linked by glutaraldehyde vapor with ultrasonic energy assistance. In the present invention, graphene modified PVA/GOx electrospun membranes were prepared to examine the immobilization mechanism between graphene and GOx. The electrochemical measurement results show that the sensitivities increased with increasing graphene concentrations up to 20 ppm. The highest sensitivity recorded 38.7 μA/mM was for a PVA/GOx membrane with 20 ppm graphene representing a 109% increase over a membrane made without graphene.

    Abstract translation: 一种电纺纳米纤维膜是片状的并由多种葡萄糖氧化酶/六氰基铁酸钾(III)改性的电纺丝纳米纤维形成,其中葡萄糖氧化酶/六氰基铁酸钾(III)改性的电纺丝纳米纤维是含有葡萄糖氧化酶和六氰基铁酸钾(III)的PVA电纺纳米纤维 )均匀分散; 葡萄糖氧化酶/六氰基铁酸钾(III)改性电纺丝纳米纤维是PVA电纺纳米纤维,通过超声能量助剂与戊二醛蒸气交联。 在本发明中,制备石墨烯改性PVA / GOx电纺丝膜,以检查石墨烯与GOx之间的固定机理。 电化学测量结果表明,随着石墨烯浓度增加到20ppm,灵敏度增加。 对于具有20ppm石墨烯的PVA / GOx膜,最高灵敏度记录为38.7μA/ mM,相对于不含石墨烯的膜而言增加了109%。

    Sound-Absorbing Material
    5.
    发明申请
    Sound-Absorbing Material 有权
    吸声材料

    公开(公告)号:US20160267897A1

    公开(公告)日:2016-09-15

    申请号:US15008538

    申请日:2016-01-28

    CPC classification number: G10K11/162 E04B1/8209 E04B2001/742

    Abstract: A sound-absorbing material has a membrane having multiple piezoelectric fibers, the fiber density of the membrane is below 50 g/m2, the thickness of the membrane is below 1 mm, sound-absorbing coefficient of the membrane is larger than 0.1 at absorbing frequency at 100 Hz+/-10%, and the sound-absorbing coefficient of the membrane is over 0.05 at absorbing frequency at 800 Hz to 1000 Hz. PVDF electrospinning nanofiber membranes of the present invention are thinner and more flexible compared to conventional sound-absorbing material, the membranes in the present invention performs excellent low frequency sound absorption with very thin membrane.

    Abstract translation: 吸音材料具有多个压电纤维的膜,膜的纤维密度低于50g / m 2,膜的厚度低于1mm,吸收频率时膜的吸声系数大于0.1 在100Hz +/- 10%时,在800Hz至1000Hz的吸收频率下,膜的吸声系数超过0.05。 本发明的PVDF静电纺丝纳米纤维膜与传统的吸音材料相比更薄且更灵活,本发明的膜具有非常薄的膜的优异的低频吸声。

    Sound-absorbing material
    7.
    发明授权
    Sound-absorbing material 有权
    吸音材料

    公开(公告)号:US09514732B2

    公开(公告)日:2016-12-06

    申请号:US15008538

    申请日:2016-01-28

    CPC classification number: G10K11/162 E04B1/8209 E04B2001/742

    Abstract: A sound-absorbing material has a membrane having multiple piezoelectric fibers, the fiber density of the membrane is below 50 g/m2, the thickness of the membrane is below 1 mm, sound-absorbing coefficient of the membrane is larger than 0.1 at absorbing frequency at 100 Hz+/−10%, and the sound-absorbing coefficient of the membrane is over 0.05 at absorbing frequency at 800 Hz to 1000 Hz. PVDF electrospinning nanofiber membranes of the present invention are thinner and more flexible compared to conventional sound-absorbing material, the membranes in the present invention performs excellent low frequency sound absorption with very thin membrane.

    Abstract translation: 吸音材料具有多个压电纤维的膜,膜的纤维密度低于50g / m 2,膜的厚度低于1mm,吸收频率时膜的吸声系数大于0.1 在100Hz +/- 10%时,在800Hz至1000Hz的吸收频率下,膜的吸声系数超过0.05。 本发明的PVDF静电纺丝纳米纤维膜与传统的吸音材料相比更薄且更灵活,本发明的膜具有非常薄的膜的优异的低频吸声。

    Ultrathin Triboelectric Nanogenerator and Application Thereof

    公开(公告)号:US20220278631A1

    公开(公告)日:2022-09-01

    申请号:US17483977

    申请日:2021-09-24

    Abstract: Present invention is related to an ultrathin triboelectric nanogenerator having a positive assembly layer and a negative assembly layer electrically connected together. The positive assembly layer comprises a positive layer and a first electrode. The negative assembly layer comprises a negative layer and a second electrode. The said first electrode and the said second electrode are electrically connected with each other. The positive layer could be a foam layer with under 90 μm thickness and less than 60 μm pore size. The present invention firstly provides the ultrathin triboelectric nanogenerator with PU foam as the positive layer which could achieve better electrical performance compared to any conventional triboelectric nanogenerator.

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