High performance lithium-ion and lithium–sulfur batteries using prelithiated phosphorus/carbon composite anode

Journal Article · Fri Aug 30 00:00:00 EDT 2019 · Energy Storage Materials

DOI:https://doi.org/10.1016/j.ensm.2019.08.025· OSTI ID:1562482

Wang, Gongwei ^[1]; Li, Feifei ^[2]; Liu, Dan ^[3]; Zheng, Dong ^[4]; Abeggien, Caleb John ^[4]; Luo, Yang ^[4]; Yang, Xiao-Qing ^[5]; Ding, Tianyao ^[4]; Qu, Deyang ^[4]

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1. Wuhan Univ., Wuhan (China); Univ. of Wisconsin, Milwaukee, WI (United States)
2. Wuhan Inst. of Technology, Wuhan (China)
3. Wuhan Univ. of Technology, Wuhan (China)
4. Univ. of Wisconsin, Milwaukee, WI (United States)
5. Brookhaven National Lab. (BNL), Upton, NY (United States)

Controlled chemical prelithiation of high capacity phosphorous/carbon (P/C) composite anode has been applied to develop advanced lithium-ion batteries (LIBs). The initial coulombic efficiency (CE) of P/C is significantly improved (up to 93% for fully-prelithiated P/C) owing to the formation of an artificial solid electrolyte interface (SEI) layer, which is characterized by SEM, Raman and XPS analyses. It ensures the application of P/C anode in real battery assembly. A partly-prelithiated P/C anode prepared by 20 sec prelithiation treatment is paired with a LiCoO2 (LCO) cathode. Here, the full cell delivers a highly reversible capacity of ~ 104 mAh g^-1LCO at 1C rate and retains a CE close to 100% over 2000 cycles. Moreover, a fully-prelithiated P/C anode prepared by 10 min prelithiation treatment is paired with a high-capacity Lifree sulfur/carbon (S/C) cathode. This newly configured full cell delivers a good rate and cycling performance and a high energy density of 358 Wh kg^-1.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
• Grant/Contract Number: SC0012704
• OSTI ID: 1562482
• Alternate ID(s): OSTI ID: 1576612
• Report Number(s): BNL--212060-2019-JAAM
• Journal Information: Energy Storage Materials, Journal Name: Energy Storage Materials Vol. 24; ISSN 2405-8297
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
Initial coulombic efficiency
Lithium-ion batteries
Phosphorous
Prelithiation
Sulfur