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SiOx-Rich Electrode Directly Optimized Using Key Formulation Parameters
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DOI：10.1149/1945-7111/ad5a41.png)
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摘要
En 中文
The use of key parameters of the SiOx/graphite electrode formulation, and their critical values, makes it possible, without any trial-and-error type experimentation, to identify optimal electrode formulations for different SiOx/graphite mass ratios ranging up to 40:60. From the first attempt, electrodes presenting good cyclability at high surface capacity of 5.2 mA h cm(-2 )were formulated, reaching for example more than 93% capacity retention after 60 cycles in a full cell, with an electrolyte rich in FEC and EC-free, however with a prelithiation strategy. With a positive electrode based on NMC811, the gains in volumetric energy and power density are + 18 and + 28% compared to graphite, considering only the electrode volumes. The principle of using the key electrode formulation parameters introduced here is expected to accelerate and facilitate the optimization of electrode formulations.
Keyword:
batteries - lithium
batteries - Li-ion
energy storage
silicon
期刊
IF:
3.3
论文数:
3.3W
被引数:
9.4W
机构
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