Abstracts Crystallization behavior of Na2MnP2O7 precursor glass was examined. Layered type Na2MnP2O7 was formed at 461 °C for 3 h in N2 filled electric furnace. Irreversible phase change was confirmed from layered Na2MnP2O7 to β-Na2MnP2O7 over 600 °C. At 650 °C crystallized phase was completely changed to β-phase. By means of charge and discharge testing it is found that layered Na2MnP2O7 is also active as cathode in sodium ion batteries. We found glass-ceramics technology is one of the suitable process for the synthesis of layered Na2MnP2O7 cathode without any complicate process.

中文翻译：

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焦磷酸锰钠Na 2 MnP 2 O 7 玻璃独特的结晶行为及其电化学性能

摘要 研究了 Na2MnP2O7 前驱体玻璃的结晶行为。层状 Na2MnP2O7 在 461°C 下在充满氮气的电炉中经过 3 小时形成。600 °C 以上证实了从层状 Na2MnP2O7 到 β-Na2MnP2O7 的不可逆相变。在 650 °C 结晶相完全转变为 β 相。通过充放电测试发现，层状Na2MnP2O7在钠离子电池中作为阴极也具有活性。我们发现微晶玻璃技术是合成层状 Na2MnP2O7 阴极的合适工艺之一，无需任何复杂工艺。