Once again, this behaviour is seen in other 2D MOFs studied in the literature, with all current examples showing reduced rate performances compared to traditional carbon materials. As a result, lower current densities, and therefore longer charging and discharging times, are needed to achieve high capacitances with 2D MOFs, which is undesirable for practical applications. The lower kinetic performance of 2D MOFs may be due to several factors, including lower electrical conductivities. Slower diffusion of electrolyte ions within 2D MOFs also impacts rate performances, and this needs to be improved in the future. Recent studies employing Cu3(HHTP)2-based electrodes, first in supercapacitors and then in Li-ion batteries, have shown that changing the morphology of 2D MOFs is a promising route to tune charging kinetics and rate performances. In both works, it was found that 'flake' particles, with extended growth in the ab plane and a pore network of many short pores, displayed better rate performances than 'rod' particles, with extended growth in the c plane and longer pores. This was due to improved ion kinetics in the 'flake' particles, with shorter pores being more rapidly accessible to electrolyte ions. We hypothesise that further tuning of the morphology would yield further improvements in rate performance.