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Self-Healing, Improved Efficiency Solid State Rechargeable Li/I2 Based Battery
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DOI：10.1149/1945-7111/abd831.png)
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摘要
En 中文
Solid state electrolytes are receiving significant interest due to the prospect of improved safety, however, addressing the incidence and consequence of internal short circuits remains an important issue. Herein, a battery based on a LiI-LiI(HPN)(2) solid state electrolyte demonstrated self-healing after internal shorting where the cells recovered and continued to cycle effectively. The functional rechargeable electrochemistry of the self-forming Li/I-2-based battery was investigated through interfacial modification by inclusion of Li metal (at the negative interface), and/or fabricated carbon nanotube substrates at the positive interface. A cell design with lithium metal at the negative and a carbon substrate at the positive interface produced Coulombic efficiencies > 90% over 60 cycles. Finally, the beneficial effects of moderately elevated temperature were established where a 10 degrees C temperature increase led to similar to 5x lower resistance.
Keyword:
Batteries
Lithium
Interface modification
Batteries
期刊
IF:
3.3
论文数:
3.3W
被引数:
9.4W
机构
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