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首页> 外文会议>AABC tracks 2017: xEV battery technology, application amp; market and chemistry amp; materials for lead-based batteries >Optimization of Calcination Conditions to Achieve High Tap Denstiy LiNi0.6Mn0.2Co0.2O2
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Optimization of Calcination Conditions to Achieve High Tap Denstiy LiNi0.6Mn0.2Co0.2O2

机译：优化煅烧条件以获得高析出密度的LiNi 0.6 Mn 0.2 Co 0.2 O 2

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摘要

In order to further improve the performance of Li-ion batteries, improvements are needed in the cathode tap density, safety, and electrochemical performance. The tap density and other parameters of lithium-nickel-cobalt-manganese-oxide (NMC) Li-ion battery cathodes are strongly influenced by the conditions that the precursor and LiOH·H[2]O are calcined under, which is particularly true as the nickel content increases. These calcination conditions include the air flow rate, temperature, and annealing time. We have studied these calcination parameters using two different types of high tap density Ni[0.6]Mn[0.2]Co[0.2](OH)[2] precursors; one made using a Taylor vortex reactor (TVR), and another synthesized by continuous stirred-tank reactor (CSTR). The final LiNi[0.6]Mn[0.2]Co[0.2]O[2] cathode materials were characterized to determine the microstructure, tap density, surface area, lithium content and electrochemical performance. Furthermore, cross-sectional scanning electron microscopy was utilized to reveal the internal porosity of the precursor and cathode materials. These studies demonstrate the importance of careful optimization of the calcination conditions in order to achieve the highest quality cathode material.
机译：为了进一步改善锂离子电池的性能，需要改善阴极抽头密度，安全性和电化学性能。锂-镍-钴-锰-锰氧化物（NMC）锂离子电池阴极的振实密度和其他参数受煅烧前体和LiOH·H [2] O的条件的强烈影响，这尤其适用于镍含量增加。这些煅烧条件包括空气流速，温度和退火时间。我们已经使用两种不同类型的高振实密度Ni [0.6] Mn [0.2] Co [0.2]（OH）[2]前体研究了这些煅烧参数。一种由泰勒涡旋反应器（TVR）制成，另一种由连续搅拌釜反应器（CSTR）合成。对最终的LiNi [0.6] Mn [0.2] Co [0.2] O [2]阴极材料进行表征，以确定其微观结构，振实密度，表面积，锂含量和电化学性能。此外，利用截面扫描电子显微镜揭示了前体和阴极材料的内部孔隙率。这些研究表明，为了获得最高质量的阴极材料，仔细优化煅烧条件非常重要。

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