High Performance of Salt-Modified–LTO Anode in LiFePO<sub>4</sub> Battery
oleh: Agus Purwanto, Soraya Ulfa Muzayanha, Cornelius Satria Yudha, Hendri Widiyandari, Arif Jumari, Endah Retno Dyartanti, Muhammad Nizam, Muhamad Iqbal Putra
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2020-10-01 |
Deskripsi
Highly crystalline “zero-strain” Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> (LTO) has great potential as an alternative material for the anodes in a lithium ion battery. In this research, highly crystalline LTO with impressive electrochemical characteristics was synthesized via a salt-assisted solid-state reaction using TiO<sub>2</sub>, LiOH, and various amounts of NaCl as a salt additive. The LTO particles exhibited a cubic spinel structure with homogenous micron-sized particles. The highest initial specific discharge capacity of LTO was 141.04 mAh/g with 4 wt % NaCl addition, which was tested in a full-cell (LTO/LiFePO<sub>4</sub>) battery. The battery cell showed self-recovery ability during the cycling test at 10 C-rate, which can extend the cycle life of the cell. The salt-assisted process affected the crystallinity of the LTO particles, which has a favorable effect on its electrochemical performance as anodes.