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Criterion for Identifying Anodes for Practically Accessible High-Energy-Density Lithium-Ion Batteries
ACS Energy Letters ( IF 22.0 ) Pub Date : 2021-09-28 , DOI: 10.1021/acsenergylett.1c01713 Hao Zhang 1, 2 , Li Wang 1 , Hong Li 3 , Xiangming He 1
ACS Energy Letters ( IF 22.0 ) Pub Date : 2021-09-28 , DOI: 10.1021/acsenergylett.1c01713 Hao Zhang 1, 2 , Li Wang 1 , Hong Li 3 , Xiangming He 1
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Figure 1. Discharge profiles of a LIB using the NCM622 as cathode with different anodes. Figure 2. Discharging profile of (a) graphite and (b) SnO2 andoes,(16) with the available and unavailable energy represented by green and black, respectively. (c) Energy density of various anodes discharged to 2.0 V vs Li/Li+, with black and red bars representing specific capacity and energy density of anode, respectively. Figure 3. Energy density variation of LiBs using NCM622, charged to 4.3 (right panel) and 4.6 V vs Li/Li+ (left panel) and various typical anode materials normalized with that of NCM622|Gr LIB. Figure 4. Influence of anode capacity on normalized energy density of LIBs, with the batteries using NCM622 as cathode and oxide composites, sulfide composites, P composites, and Si composites as anodes, and charged to 4.3 vs Li/Li+ (solid line) and 4.6 V vs Li/Li+ (dashed line). GAEI of Li metal-based anode (0.05 V ADP) and Li alloys (such as Li–Sn and Li–B alloy, with ∼0.45 V ADP), which are coupled with NCM622 charged to 4.6 V vs Li/Li+, are depicted by red and dark green dashed lines. Figure 5. Relationship between the ADP of anodes and the corresponding capacity needed for surpassing graphite anode in order to realize higher GED. All anodes are coupled with NCM622 charged to 4.6 V, with ADP and capacity of 4.01 V and 291 mAh g–1, respectively. The authors acknowledge the National Natural Science Foundation of China (Nos. 21875284, 22075320, and 52073161), the Ministry of Science and Technology of China (No. 2019YFE0100200 and 2019YFA0705703), and the Tsinghua University Initiative Scientific Research Program (No. 2019Z02UTY06). This article references 52 other publications.
更新日期：2021-10-08
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