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Lithium-Ion Batteries by Yuping Wu

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Chapter 9

Liquid Electrolytes

Bin Wang, Xiangyun Yuan, Shiyong Zhao, Yuping Wu, and Teunis van Ree

As discussed in Chapter 1, three main types of electrolytes are used in lithium-ion batteries. Liquid electrolytes are most frequently used. Since the potential of the negative electrode of lithium-ion batteries is close to that of lithium metal, the negative electrode is relatively active and unstable in aqueous solutions. Therefore, a nonaqueous, aprotic organic solvent should be used as the lithium-ion carrier. The mixture of organic solvents and lithium salts constitutes the nonaqueous liquid electrolyte, also referred to as the organic liquid electrolyte, which is an indispensable ingredient of lithium-ion batteries and an important component ...

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