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The multifaceted influence of acetylene black quality on the performance of lithium thionyl chloride batteries
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Published Time:
2025-01-02
In terms of conductivity, high-quality acetylene black has fewer impurities and a higher degree of graphitization, allowing it to better form a conductive network and enhance the conductivity of the battery electrode. This facilitates the rapid transfer of electrons during high-rate discharge, reducing the internal resistance of the battery. Poor-quality acetylene black, however, may contain more impurities, which can interfere with the formation of the conductive network, leading to increased internal resistance and reduced discharge performance.
In terms of conductivity, high-quality acetylene carbon black has fewer impurities and a higher degree of graphitization, enabling it to better form a conductive network, enhance the conductivity of battery electrodes, facilitate rapid electron transfer during high-rate discharge, and reduce battery internal resistance. Poor-quality acetylene carbon black, on the other hand, may contain more impurities, which can interfere with the formation of the conductive network, leading to increased battery internal resistance and reduced discharge performance.
Regarding active material utilization, high-quality acetylene carbon black allows active materials to be more evenly distributed in the electrode, ensuring full contact between active materials, and between active materials and the electrolyte. This helps improve the utilization rate of active materials, thereby enhancing the battery's specific capacity and energy density. Poor-quality acetylene carbon black can lead to uneven distribution of active materials, making it difficult for some active materials to participate in reactions, thus reducing the battery's energy output.
In terms of battery stability, good acetylene carbon black can enhance the stability of the electrode structure, reduce volume changes and shedding of active materials during charging and discharging, which helps maintain stable battery performance and extends battery cycle life. Poor-quality acetylene carbon black may lead to a loose electrode structure, making it prone to issues like active material shedding during battery operation, affecting battery safety and service life.
Keywords:
Conductive,Acetylene
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