2016年11月1日 · In this work, we revisited the issue of TEM measurements of Li distribution maps for LFP/FP. Different TEM techniques, including spectroscopic techniques (energy filtered (EF)TEM in the energy range from low-loss to core-loss) and a STEM diffraction technique (automated crystal orientation mapping (ACOM)), were applied to map the lithiation of ...

2015年1月20日 · The LFP transformation mechanism is studied during in situ (de)lithiation using an oriented LFP single crystal with a size of 16 × 1 × 0.2 μm (c × b × a direction) as a well-defined system ...

2013年9月27日 · Since olivine-type LiFePO 4 (LFP) was reported as a positive electrode material for LIBs by Padhi et al. 4, it has been the subject of intense investigations for its potential as an...

2016年11月1日 · Transmission electron microscopy (TEM) has been used intensively in investigating battery materials, e.g. to obtain phase maps of partially (dis)charged (lithium) iron phosphate (LFP/FP), which is one of the most promising cathode material for next generation lithium ion (Li-ion) batteries.

2017年8月25日 · Inhomogeneous (de)lithiation was revealed in LiFePO 4 (LFP) nanoparticles using in situ liquid TEM 10, which greatly supplements other in situ TEM reports showing either solid solution zones...

Transmission electron microscopy (TEM) has been used intensively in investigating battery materials, e.g. to obtain phase maps of partially (dis)charged (lithium) iron phosphate (LFP/FP), which is one of the most promising cathode material …

Fig. 3 shows transmission electron microscopy (TEM) images, high-resolution transmission electron microscopy (HRTEM) images, and selected area electron diffraction (SEAD) patterns of...

In this work, we revisited the issue of TEM measurements of Li distribution maps for LFP/FP. Different TEM techniques, including spectroscopic techniques (energy filtered (EF)TEM in the energy range from low-loss to core-loss) and a STEM diffraction technique (automated crystal orientation mapping (ACOM)), were applied to map the lithiation of ...

Transmission electron microscopy (TEM) has been used intensively investigatiin ng battery materials, e.g. to obtain phase maps of partially (dis)charged (lithium) iron phosphate (LFP/FP), which is one of the most promising cathode material for next generation ithium ion (Li-ion) batteries. Due to l the

LiFePO4 (LFP) 作为一种橄榄石锂电池正极材料，由于其优异的热稳定性、长循环寿命、低成本等特点，被广泛应用于电动汽车中。 动力锂电池正极材料约占电池成本的40%，因此，LFP正极材料回收再利用可以缓解环境和资源压力，也将带来可观的经济效益，具有非常重要的意义。 回收动力电池LFP正极材料，一般通过高温焙烧、碱溶解、酸浸出等分离沉淀方法，以回收具有经济价值的Li元素为主的锂盐。 然而，在实际回收过程中，由于化学试剂的大量使用以及废水、废气的再 …