Abstract
Lithium aluminum manganese oxide (LAMO) having a spinel-framework structure (a = 8.211 A) was prepared and examined in lithium nonaqueous cells. LAMO shows extremely small irreversible capacity with rechargeable capacity of ca. 105 mAh g -1 in lithium cells operated in voltage of 3 to 5 V. To show durability for long-life applications, a 2.5 V lithium-ion cell of Li[Li 1/3 Ti 5/3 ]O 4 and LAMO was fabricated and accelerated cycle tests were done at room temperature in voltage of 2 to 3 V for 3600 cycles, and an empirical relation between capacity (Q) and number of cycle (n) was obtained to be Q = 102.7 - 0.144 n 1/2 .
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