Contents
Rate capability of LiFePO4 cathodes and the shape engineering of their anisotropic crystallites / Alexander Bobyl ; Sang-Cheol Nam ; Jung-Hoon Song ; Alexander Ivanishchev ; Arseni Ushakov 1
ABSTRACT 1
1. Introduction 1
2. Experimental 2
2.1. XRD crystallite and TEM particle sizes : how to connect them 2
2.2. XRD and TEM measurements of LiFePO₄ powder to get 3D Lognormal crystallite distributions 3
2.3. Electrochemical measurements of LiFePO₄ cathodes 4
3. Results and Discussion 6
3.1. Analytical model of rate capability Q (t) 6
3.2. Determination of the experimental parameters of rate capability Q(t): D and tₑₗ 7
3.3. Comparison with the results of using the Randles-Sevcik equation 8
3.4. Shape engineering of crystallites to optimize rate capability and increase the cathode capacity 9
4. Conclusions 13
References 15
Supporting Information 16