Harness, Dickey & Pierce, P.L.C.
Battery life by controlling the voltage window of the negative electrode
In an example of a method for improving a life cycle of a battery containing a lithium-silicon negative electrode, the battery is provided. The battery includes a positive electrode; the lithium-silicon negative electrode, which has at least 10% of its capacity attributed to a silicon-based active material; a separator positioned between the positive and negative electrodes; and an electrolyte. The battery is operated within a voltage potential window ranging from about 0.7 V and about 0.07 V versus a lithium reference electrode.
GM GLOBAL TECHNOLOGY OPERATIONS LLC
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Qinglin Xingcheng Mark W.
Zhang Xiao Verbrugge