Hwang, Jintae Park, Sungbin Park, Changkyoo Cho, Wonil Jang, Ho 2024-01-20T12:02:39Z 2024-01-20T12:02:39Z 2021-09-05 2013-07 1598-9623 https://pubs.kist.re.kr/handle/201004/127905 The effect of the precursor concentration on the electrochemical properties of hydrothermally synthesized Li2MnSiO4 is investigated. The synthesis mechanism is investigated by analyzing the chemical reaction as a function of reaction time. Results show that Li2MnSiO4 is synthesized by a dissolution-recrystallization mechanism through an intermediate Mn(OH)(2) phase. Smaller particles produced from higher concentration precursor solution. Li2MnSiO4 with smaller particle size shows larger initial discharge capacity than that of Li2MnSiO4 with larger particle size which are synthesized from lower concentration precursor solution. A maximum initial charge capacity of 323 mAh g(-1) and discharge capacity of 177 mAh g(-1) are achieved through hydrothermal synthesis using a 2.1 M solution, while it shows serious capacity fading. Li2MnSiO4 synthesized from 2.1 M solution shows 32% of capacity retention after 20 cycles. Smaller particle size of Li2MnSiO4 can induce more serious side reaction with electrolyte due to its larger specific surface area, which results in structural instability during charge-discharge tests. English KOREAN INST METALS MATERIALS Hydrothermal synthesis of Li2MnSiO4: Mechanism and influence of precursor concentration on electrochemical properties Article 10.1007/s12540-013-4029-z 1 METALS AND MATERIALS INTERNATIONAL, v.19, no.4, pp.855 - 860 METALS AND MATERIALS INTERNATIONAL 19 4 855 860 scie scopus kci ART001788829 000322373200026 2-s2.0-84879976139 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article energy storage materials coating electrochemistry X-ray diffraction crystal growth