Built-In Electric Field Generated by the Piezoelectric Effect Facilitates a High Li+ Diffusion Rate for Li-Ion Batteries
Wenbin Huang,
Jiayi Chen,
Bin Qiu
et al.
Abstract:Silicon
(Si), which is a promising anode for lithium-ion
batteries
(LIBs), has attracted widespread concern on account of its high theoretical
capacity. Unfortunately, the Si volume expansion during cycling leads
to serious capacity fading, which greatly impedes the application
prospect of Si electrodes. In this work, BaTiO3 (BTO) was
introduced to prepare one Si/BaTiO3@Carbon nanofiber material
(Si/BTO@CNF). The volume expansion of Si inevitably induces the piezoelectric
potential of BTO during cycling. Such … Show more
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