Electrolytes for a metal-ion battery cell with high-capacity, micron-scale, volume-changing anode particles
地域：
CA
CA Alameda
摘要
In an embodiment, a metal-ion battery cell comprises an anode electrode, a cathode electrode, a separator, and electrolyte ionically coupling the anode electrode and the cathode electrode. The anode electrode is a high-capacity electrode (e.g., in the range of about 2 mAh/cm2 to about 10 mAh/cm2) and the cathode electrode comprises an intercalation-type active material including at least Li, one or more metals, and oxygen. The electrolyte includes a solvent composition having low-melting point (LMP) solvent(s) in the range from about 10 vol. % to about 95 vol. % of the solvent composition.
說(shuō)明書
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A broad range of electrolyte compositions may be utilized in the construction of Li and Li-ion batteries and other metal and metal-ion batteries. However, for improved cell performance (e.g., low and stable resistance, high cycling stability, high rate capability, etc.), the optimal choice of electrolyte needs to be developed for specific types and specific sizes of active particles in both the anode and cathode, as well as the specific operational conditions (e.g., temperature, charge rate, discharge rate, voltage range, capacity utilization, etc.). In many cases, the choice of electrolyte components and their ratios is not trivial and can be counter-intuitive.
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