[SS] S2 Materials Science of Advanced Energy Storage Devices

11:50 AM - 12:10 PM JST(2:50 AM - 3:10 AM UTC)

[S2.18] Effect in Li⁺ Ion Conduction of Hydrogen Absorbed in Positive and Negative Electrodes at Various Charge and Discharge Conditions

○Bun Tsuchiya¹, Yuto Inagaki¹, Keisuke Kataoka¹, Yushiro Kataoka Suzuki¹, Yuma Horibe¹, Hisao Yamashige² (1. Meijo Univ., 2. TOYOTA)

Keywords:

lithium ion battery,lithium iron phosphate,carbon,lithium concentration distribution,elastic recoil detection

The Li⁺ ion transfers between Li_xFePO₄ positive electrode and C negative one with in LiPF₆ liquid electrolyte by charging and discharging were observed using elastic recoil detection (ERD). In addition, it was found that the H atoms absorbed in Li_xFePO₄ favored to be occupied at the Li substitutional sites to prevent the Li⁺ ion conduction.