Key points are not available for this paper at this time.
Batteries using metallic lithium (Li) as an anode have attracted a great deal of attention because they have the potential to achieve high energy density over Li-ion batteries. In order to use Li metal as a practical anode of a secondary battery, there are many problems to be overcome. A large volume change of the anode accompanying repetitive deposition and dissolution of Li is one such problem. Here we report that a 3D matrix consisting of insulative microfibers on the Li anode functions as a layer absorbing the volume change associated with the deposition/dissolution of Li as high as 10 mAh/cm2. This result suggests that the use of an insulative 3D matrix layer is an effective way to minimize anode volume change under practical operating conditions.
Matsuda et al. (Thu,) studied this question.