context: The detailed preparation processes of positive electrodes can be found in previous work. The mass loading of active material was ∼3.0 mg cm−2 for positive electrodes. In 2032-type half cells, lithium foil was used as the anode. Pre-lithiated MCMB was utilized as the negative electrode in full cells. The electrolyte was 1 M LiPF6 dissolved in mixed solvents of DMC and EC (7:3 by volume). Galvanostatic charge–discharge was conducted using a LAND tester (CT-2001A). All electrochemical testing was performed at room temperature (25 °C).
answer: 1 M LiPF6