合成了一种二氧化锰电池正极材料.用改进的碱性条件下合成晶型良好的纳米δ-MnO2，合成出了含Mg2+的钡镁锰矿(Todorokite)，经XRD、TEM测试表明其为粒度均匀的纳米大隧道(33)MnO2，并在碱性和中性电液中对样品进行恒流放电，循环伏安等电化学性能测试，结果表明循环稳定性良好.
A novel synthesis of the large tunnel structure 奙g-containing Todorokite from nano--MnO2 and 3mol/L MgCl2 in a higher pressure caldron was described. XRD and TEM results confirm that Mg-Todorokite is also a nano-phase MnO2 with homogeneous particle size. Electrochemical studies on constant current discharge and cyclic behavior of Mg-Todorokite in 9mol/L KOH or in 5mol/L LiNO3 aqueous electrolytes show thatit possesses a lower open circuit voltage, and a good cycling performance
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