Electrochemical behavior of Li-Mn spinel electrode material in aqueous solution

被引：33

作者：

Pei, W ^{[1
]}

Hui, Y ^{[1
]}

Yang, HQ ^{[1
]}

机构：

[1] BEIJING UNIV,DEPT CHEM,BEIJING 100871,PEOPLES R CHINA

来源：

JOURNAL OF POWER SOURCES | 1996年 / 63卷 / 02期

关键词：

lithium compounds; manganese oxide; electrochemical behavior; voltage-pH relationship; batteries; charge/discharge performance;

D O I：

10.1016/S0378-7753(96)02477-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

The electrochemical properties of LiMn2O4 are studied in aqueous solution with various pH values. The performance is similar to that in organic electrolyte. Li1-xMn2O4 + xLi(+) + xe(-) = LiMn2O4 in aqueous solution involves two processes: (i) a two-phase reaction at 0.89 V versus saturated calomel electrode (SCE), and (ii) a one-phase reaction at 0.77 V versus SCE. LiMn2O4 in LiNO3/HNO3 from pH 2 to 5 is reversible for about 20 cycles. More cycles lead to st great loss in capacity, the reason for which is yet unknown.

引用

页码：275 / 278

页数：4

共 7 条

[1]

LI METAL-FREE RECHARGEABLE LIMN2O4/CARBON CELLS - THEIR UNDERSTANDING AND OPTIMIZATION [J].