Investigation of Novel Polymeric Solid Electrolyte for Lithium Secondary Battery
锂二次电池用新型聚合物固体电解质的研究
基本信息
- 批准号:01850184
- 负责人:
- 金额:$ 4.93万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Developmental Scientific Research (B).
- 财政年份:1989
- 资助国家:日本
- 起止时间:1989 至 1990
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Novel polymeric solid electrolyte, poly (ethylene oxide) -grafted poly (methyl methacrylate) with a lithium salt and polar solvents (propylene carbonate (PC) and/or polyethylene glycol (PEG)) was investigated for lithium secondary batteries.1. The polymeric solid electrolyte was prepared by UV irradiation to mixture of monomer, lithium salt, solvent and photo initiator. Electric conductivity of the resulted film was ca. 10^<-4> S cm^<-1> at room temperature.Improvement of conductivity to 3.5 x 10^<-3> S cm^<-1> was accomplished by dipping the film into a liquid electrolyte (lithium salt, for an example LiClO_4 / PC) after heat treatment.2. The electrode reaction of lithium in the polymeric solid electrolyte was studied. The charge transfer rate at the lithium electrode/polymeric electrolyte was high and the ion transfer in the bulk electrolyte was rate determing at high cathodic polarization.3. Insertion and removal of lithium ions at an advanced manganese oxide electrode in the polymeric solid electrolyte was confirmed by cyclic voltammetry. This material can be used as positive material for a lithium secondary battery.4. According to results from 1 to 3, a model lithium secondary cell was constructed. The model cell had 140 - 200 mAh g^<-1> (per gram of positive material) as discharge capacity and excellent cycle performance.
研究了用于二次锂电池的新型聚合物固体电解质——聚环氧乙烷接枝聚甲基丙烯酸甲酯与锂盐和极性溶剂(碳酸丙烯(PC)和/或聚乙二醇(PEG))。以单体、锂盐、溶剂和光引发剂为原料,采用紫外辐射法制备了聚合物固体电解质。所得薄膜在室温下的电导率约为10^<-4> S cm^<-1>。通过将薄膜浸入液体电解质(锂盐,例如LiClO_4 / PC)中进行热处理,将其电导率提高到3.5 × 10^<-3> S cm^<-1>。研究了锂在聚合物固体电解质中的电极反应。在高阴极极化条件下,锂电极/聚合物电解质的电荷转移速率高,体电解质中的离子转移速率决定。循环伏安法证实了锂离子在聚合物固体电解质中高级氧化锰电极上的插入和去除。这种材料可用作锂二次电池的正极材料。根据1 ~ 3的结果,构建了锂二次电池模型。模型电池的放电容量为140 - 200 mAh g^<-1>(每克正极材料),具有优异的循环性能。
项目成果
期刊论文数量(20)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Y. Matsuda: "Future Prospect of Energy Storage by Rechargeable Lithium Batteries" Proceedings of 3rd International Conference Batteries for Utility Energy Storage.
Y. Matsuda:“可充电锂电池储能的未来前景”第三届国际公用事业储能电池会议论文集。
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森田昌行: "Polarization Behavior of Lithium Electrode in Solid Electrolytes Consisting of a Polyー(Ethylene Oxide)ーGrafted Polymer" Journal of the Electrochemical Society.
Masayuki Morita:“由聚(环氧乙烷)接枝聚合物组成的固体电解质中锂电极的极化行为”电化学学会杂志。
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M. Morita: "Polarization behavior of lithium negative electrode in a poly (ethylene oxide)-based solid electrolyte" Chemistry Express. Vol. 4, No. 12. 837-840 (1990)
M. Morita:“基于聚环氧乙烷的固体电解质中锂负极的极化行为”Chemistry Express。
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M. Morita: "Characteristics of poly (ethylene oxide)-based electrolytes for rechargeable lithium batteries" Progress in Batteries & Solar Cells. Vol. 8. 170-174 (1989)
M. Morita:《可充电锂电池用聚环氧乙烷基电解液的特性》电池进展
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H.Ashitaka: "AN ULTRAーTHIN LITHIUM BATTERY WITH POLYMERIC SOLID ELECTROLYTE" Proceedings of the 5th International Meeting on Lithium Batteries.
H.Ashitaka:“采用聚合物固体电解质的超薄锂电池”第五届国际锂电池会议论文集。
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MATSUDA Yoshiharu其他文献
MATSUDA Yoshiharu的其他文献
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{{ truncateString('MATSUDA Yoshiharu', 18)}}的其他基金
Studies on the Structure Designing of Electrode/Electrolyte Interface for Lithium Batteries
锂电池电极/电解质界面结构设计研究
- 批准号:
04453081 - 财政年份:1992
- 资助金额:
$ 4.93万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
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