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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
2019-10-02
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)
2019-10-02
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
2019-10-02
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