The successful implementation of an aqueous‐based electrode manufacturing process for nickel‐rich cathode active materials is challenging due to their high water sensitivity. In this work, the surface of LiNi_0.8Co_0.15Al_0.05O₂ (NCA) was modified with a lithium phosphate coating to investigate its ability to protect the active material during electrode production. The results illustrate that the coating amount is crucial and a compromise has to be made between protection during electrode processing and sufficient electronic conductivity through the particle surface. Cells with water‐based electrodes containing NCA with an optimized amount of lithium phosphate had a slightly lower specific discharge capacity than cells with conventional N‐methyl‐2‐pyrrolidone‐based electrodes. Nonetheless, the cells with optimized water‐based electrodes could compete in terms of cycle life.

中文翻译：

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通过Li3PO4涂层对LiNi0.8Co0.15Al0.05O2颗粒进行表面改性，以实现水性电极加工。

由于其对水的高敏感性，成功实施用于富镍阴极活性材料的水基电极制造工艺具有挑战性。在这项工作中，LiNi _0.8 Co _0.15 Al _0.05 O _2的表面（NCA）用磷酸锂涂层改性，以研究其在电极生产过程中保护活性材料的能力。结果表明，涂​​覆量至关重要，必须在电极加工过程中的保护和通过颗粒表面的足够的电子导电性之间做出折衷。与含有传统的基于N-甲基-2-吡咯烷酮的电极相比，含有NCA和最适量磷酸锂的水基电极的比放电容量略低。尽管如此，具有优化水基电极的电池仍可在循环寿命方面竞争。