• BMW_Factors influencing the thermal stability of li-ion batteries.pdf

    • Onset of exothermic reactions is determined by the anode side  Deposition of metallic lithium on the anode surface should be prevented  Effective and thermally stable SEI is key for a safe LIB • High reactivity of the cathode in presence of electrolyte dominates the kinetics during thermal runaway  Layered and spinel-type electrodes exhibit a decreased thermal stability in the charged state  The presence of nickel largely reduces the thermal stability of positive active materials (especially in the charged state; Ni4+) independent of the structure (layered/spinel)  An increasing nickel content in the NCM structure intrinsically reduces the thermal stability  Overall, aging effects have a larger influence on the thermal stability of layered transition metal oxides like NCM compared to spinel-type or olivine-type active materials

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  • Mechanisms and Mitigations for Failure Propagation in Lithium-ion Batteries.pdf

    • Failures initiated by mechanical insult to cell 1 which is connected to cell 2 through constantan bridge wire • Development of a testing fixture to increase reproducibility • Additional effort to maintain electrical connection with cell 1 after runaway event • Use of spring on nail to apply opposing force keeping cell from ejecting after runaway (images below)

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    2019-10-02
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  • EB_SW architecture for ADAS.pdf

    ADAS 相关的软件嵌入式架构设计, Short overview of Elektrobit automotive The road to Advanced Driver Assistance Systems Challenges for ADAS System Architecture ECU Software Architecture

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    2019-10-02
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  • 并网光伏发电专用逆变器技术要求和试验方法

    并网光伏发电专用逆变器技术要求和试验方法

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