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116 条记录 (耗时 0.038 秒)

    Protection circuit for battery management system
    24.
    发明授权
    Protection circuit for battery management system 有权

    公开(公告)号：US11670938B2

    公开(公告)日：2023-06-06

    申请号：US17342447

    申请日：2021-06-08

    申请人： A123 Systems, LLC

    发明人： Yue Li ,  Steve Gierlach ,  Weiwei Lin ,  Brian Large ,  Jiaping Zhang ,  Ke Xu

    IPC分类号： H01M10/42 ,  H02H7/18 ,  B60L50/60 ,  H02H1/00 ,  B60L58/10

    CPC分类号： H02H7/18 ,  B60L50/66 ,  B60L58/10 ,  H01M10/4257 ,  H02H1/0007 ,  H01M2010/4271 ,  H01M2220/20

    摘要： Systems and methods are provided for a battery management system (BMS) having a protection circuit. In one example, a vehicle battery system may include the BMS, the BMS including a cutoff circuit coupled to a short-circuit protection circuit, and a battery pack, wherein the short-circuit protection circuit may include a diode array, cathodes of the diode array being coupled to a positive terminal post of the battery pack and anodes of the diode array being coupled to a negative terminal post of the battery pack. In some examples, the cutoff circuit may further be coupled to a reverse bias protection circuit including a switchable current path arranged between a control input of the cutoff circuit and an output of the cutoff circuit. In this way, the vehicle battery system may be protected from unexpected voltage conditions via the BMS redirecting and dissipating excess current away from the cutoff circuit.

    METHODS AND SYSTEMS FOR CATHODE PRE-LITHIATION LAYER
    25.
    发明申请
    METHODS AND SYSTEMS FOR CATHODE PRE-LITHIATION LAYER 有权

    公开(公告)号：US20220359862A1

    公开(公告)日：2022-11-10

    申请号：US17659463

    申请日：2022-04-15

    申请人： A123 Systems LLC

    发明人： Linghong Zhang ,  Xiaorui Chen ,  Shaocheng Hu ,  Xiqing Wang ,  Jun Wang ,  Taehwan Yu ,  Paul Gionet

    IPC分类号： H01M4/36 ,  H01M10/0525 ,  H01M10/04 ,  H01M4/04 ,  H01M4/62

    摘要： Methods and systems are provided for forming a cathode pre-lithiation layer for a lithium-ion battery. In one example, a slurry for forming the cathode pre-lithiation layer may include a solvent including a uniform dispersion of a nanoscale cathode pre-lithiation reagent. The slurry may be cast onto a porous cathode active material layer and dried and calendered to form the cathode pre-lithiation layer. In some examples, the slurry may have a viscosity of up to 5000 cP at a shear rate of 100 s−1. In this way, delamination and interfacial impedance between the cathode pre-lithiation layer and the porous cathode active material layer may be reduced relative to a higher viscosity cathode pre-lithiation layer having a larger scale cathode pre-lithiation reagent cast onto a non-porous or low-porosity cathode active material layer.

    POLYMER BINDER ADDITIVES FOR ELECTRODES
    28.
    发明申请
    POLYMER BINDER ADDITIVES FOR ELECTRODES 有权

    公开(公告)号：US20210202948A1

    公开(公告)日：2021-07-01

    申请号：US17269949

    申请日：2019-08-28

    申请人： A123 Systems, LLC

    发明人： Lixin Wang ,  Chloe Harrison ,  Derek C. Johnson

    IPC分类号： H01M4/62 ,  H01M4/04 ,  H01M10/0525

    摘要： A binder for an electrode is provided herein. In one example, the electrode may include a current collector, and an electrode coating layer, the electrode coating layer including an electrode active material and a binder, where the binder may comprise an aromatic polyamide-based compound, and the binder may be present at greater than 0 wt % and less than or equal to 30 wt % of the electrode coating layer. In one example, the binder provides stronger cohesion between particles of the electrode active material. Methods and systems are further provided for fabricating the electrode including the binder.