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Article
Open AccessFundamental methods of electrochemical characterization of Li insertion materials for battery researchers
Li-ion batteries have gained intensive attention as a key technology for realizing a sustainable society without dependence on fossil fuels. To further increase the versatility of Li-ion batteries, considerabl...
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Article
Open AccessSolid–electrolyte interphase formation during Li metal deposition in LiN(SO2F)2-based solvate ionic liquids
Solvate ionic liquids (SILs) are promising electrolytes for Li metal batteries. In this study, Li plating-strip** reactions in SILs were investigated using electrochemical quartz crystal microbalance measure...
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S8 Cathode
In this chapter, the porous composite cathodes for Li–S batteries are overviewed. The composite sulfur cathodes are typically composed of elemental sulfur S8, carbon support, and a polymer binder. The effects of ...
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Article
Solvate Ionic Liquids and Their Application to Lithium Batteries: Glyme-Lithium Bis(fluorosulfonyl)amide Equimolar Complexes
The physicochemical properties of glyme-Li[FSA] (FSA: bis(fluorosulfonyl)amide) equimolar complexes were investigated. The self-diffusion coefficients of glymes and Li+ as determined by pulsed-field gradient spin...
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Article
Protic Ionic Liquids Based on a Super-Strong Base: Correlation between Physicochemical Properties and ΔpKa
1,8-Diazabicyclo[5,4,0]undec-7-ene (DBU) was neutralized by a range of Bransted acids with a wide variation in the ΔpKa values of their constituent acids and base. The salts exhibited properties characteristic of...
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Nanotechnology for Material Development on Future Energy Storage
Various kinds of energy devices have been developed as power sources for portable electronic devices and electric vehicles. Fuel cell, rechargeable lithium ion battery, and super capacitor are the most interes...
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Article
Three-dimensionally ordered composite electrode between LiMn2O4 and Li1.5Al0.5Ti1.5(PO4)3
A novel electrode system composed of three-dimensionally ordered macroporous (3DOM) Li1.5Al0.5Ti1.5(PO4)3 (LATP) and LiMn2O4 was fabricated by the colloidal crystal templating method and sol–gel process. A LATP n...
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Article
Hydrothermal synthesis of LiFePO4 as a cathode material for lithium batteries
LiFePO4 (space group: Pnma) was prepared by hydrothermal method at 170 °C. LiFePO4 was prepared from precursor solutions consisting of FeSO4 · 7H2O, (NH4)2HPO4, and three kinds of Li sources. LiCl, Li(CH3COO), an...
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Article
Rapid evaluation of charge/discharge properties for lithium manganese oxide particles at elevated temperatures
A microelectrode technique was applied to investigate the electrochemical properties of LiMn2O4 particles at elevated temperatures. Cyclic voltammograms of LiMn2O4 were measured after the particles were exposed ...
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Article
High-Speed voltammetry of Mn-doped LiCoO2 using a microelectrode technique
The microelectrode technique was applied to investigate the electrochemical properties of LiCo1- x Mn x O2 (x=0, 0.01, 0.05, 0.2, or 0.5) synt...