Preparation and electrochemical lithium storage properties of Na<sub>0.44</sub>MnO<sub>2</sub> nanorods/graphene cathode

LIU Cai; WANG Liyuan; LI Jiangang; JI Dekun; JIAO Yuhai; ZHANG Rongyue; XU Wenxing

doi:10.11949/j.issn.0438-1157.20161630

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Preparation and electrochemical lithium storage properties of Na_0.44MnO₂ nanorods/graphene cathode

更新时间：2025-12-10

- Preparation and electrochemical lithium storage properties of Na_0.44MnO₂ nanorods/graphene cathode
- CIESC Journal Issue 3, Pages: 1116-1121(2017)
- 作者机构：
  
  1. 北京石油化工学院化学工程学院,北京,102617
  2. 恩泽生物质精细化学品北京市重点实验室,北京,102617
  3. 北京石油化工学院信息工程学院,北京,102617
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161630
  CLC： M912.9
- Online First：05 March 2017，
  
  Published：05 March 2017
- 稿件说明：
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LIU Cai, WANG Liyuan, LI Jiangang, et al. Preparation and electrochemical lithium storage properties of Na_0.44MnO₂ nanorods/graphene cathode[J]. CIESC Journal, 2017, (3): 1116-1121. DOI: 10.11949/j.issn.0438-1157.20161630.
DOI：

LIU Cai, WANG Liyuan, LI Jiangang, et al. Preparation and electrochemical lithium storage properties of Na_0.44MnO₂ nanorods/graphene cathode[J]. CIESC Journal, 2017, (3): 1116-1121. DOI: 10.11949/j.issn.0438-1157.20161630. DOI：

摘要

以KMnO4、MnSO4和NaOH为初始原料，利用水热软化学法制备Na0.44MnO2。XRD证实该材料具有S形孔道结构，TEM表征表明这是一种单晶纳米棒，可能有利于制备高性能正极材料。同时利用Hummers法制备石墨烯作为导电剂，通过搅拌法混合电极材料制备正极涂片。电化学测试研究显示随着的石墨烯添加量的增大，电池容量和倍率性能均得到提高。当石墨烯含量达到45%时，在0.1 A·g-1电流密度下电池容量达到192.5 mAh·g-1，在2.0 A·g-1倍率电流密度下，其容量依然保持在123.4 mAh·g-1，说明该电极材料有潜力应用于下一代高性能电池当中。

Abstract

Na0.44MnO2 nanorods were prepared from KMnO4

MnSO4 and NaOH as initial raw materials by hydrothermal soft chemical method. XRD confirmed that the products have S-shaped channel structure

and TEM characterization indicates that Na0.44MnO2 nanorods is single-crystal structure

which can be suited for preparation of high performance cathode material. Graphene prepared by hummer method were used as conductive agent. Electrochemical test research shows that the capacity

cycle and rate performance of Na0.44MnO2 nanorods/graphene are improved with the increase of the amount of graphene. When the content of graphene reached to 45%

the capacity of electrode is up to 192.5 mAh·g-1 at the current density of 0.1 A·g-1. In the rate test

the capacity of electrode is still located at 123.4 mAh·g-1 at the current density of 2.0 A·g-1

and it indicates that these electrode materials have potential application in the next generation of advanced batteries.

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Preparation and electrochemical lithium storage properties of Na0.44MnO2 nanorods/graphene cathode

DOI：10.11949/j.issn.0438-1157.20161630

摘要

Abstract

关键词

Keywords

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Preparation and electrochemical lithium storage properties of Na_0.44MnO₂ nanorods/graphene cathode