1,3-dioxolane (DOL) was originally used to pretreat a lithium metal electrode to improve its interfacial characteristics. Electrochemical impedance spectra (EIS) measurements revealed that, after the DOL pretreatment, the lithium electrode had better interfacial stability during immersion in electrolyte and as repeated charge/discharge cycles. It was proved by SEM that the pretreated one has smoother morphology and less dendrite after repeated charge/discharge cycles.Consequentially, benefiting from the better interface characteristics of the lithium electrode, the rechargeable lithium cell with a DOL-pretreated lithium anode had the obviously enhanced discharging performance and better cyclability.
参考文献
| [1] | Yamaki J I;Tobishima S I;Hayashi K et al.A consideration of the morphology of electrochemically deposited lithium in an organic electrolyte[J].Journal of Power Sources,1998,74:219. |
| [2] | Aurbach D.;Zinigrad E.;Cohen Y.;Teller H. .A short review of failure mechanisms of lithium metal and lithiated graphite anodes in liquid electrolyte solutions[J].Solid state ionics,2002(3/4):405-416. |
| [3] | Wang Xianming;Eiki Yasukawa;Shigeaki Kasuya .Electrochemical properties of tetrahydropyran-based ternary electrolytes for 4 V lithium metal rechargeable batteries[J].Electrochimica Acta,2001(6):813-819. |
| [4] | Ota H;Wang X M;Yasukawa E .Characterization of lithium electrode in lithium imides/ethylene carbonate,and cyclic ether electrolytes[J].Journal of the Electrochemical Society,2004,151:A427. |
| [5] | Kanamura K.;Shiraishi S.;Takehara Z.;Takezawa H. .CHEMICAL REACTION OF LITHIUM SURFACE DURING IMMERSION IN LICLO4 OR LIPF6/DEC ELECTROLYTE[J].Journal of the Electrochemical Society,1997(6):1900-1906. |
| [6] | Mogi R;Inaba M;Jeong S K et al.Effects of some organic additives on lithium deposition in propylene carbonate[J].Journal of the Electrochemical Society,2002,149:A1578. |
| [7] | Ishikawa M;Machino S I;Morita M .Electrochemical control of a Li metal anode interface:Improvement of Li cyclability by inorganic additives compatible with electrolytes[J].Journal of Electroanalytical Chemistry,1999,473:279. |
| [8] | Aurbach D .Review of selected electrode-solution interactions which determine the performance of Li and Li ion batteries[J].Journal of Power Sources,2000,89:206. |
| [9] | Morigaki K .Analysis of the interface between lithium and organic electrolyte solution[J].Journal of Power Sources,2002,104:13. |
| [10] | Orsini F.;Tarascon JM.;Dolle M. .Impedance study of the Li degrees/electrolyte interface upon cycling[J].Solid state ionics,2000(1/4):213-221. |
| [11] | Churikov A V;Nimon E S;Lvov A L .Impedance of Li-Sn,Li-Cd and Li-Sn-Cd alloys in propylene carbonate solution[J].Electrochimica Acta,1997,42:179. |
| [12] | Sakamoto JS.;Dunn B.;Wudl F. .Passivating lithium electrodes with trimethylsilylacetylene[J].Solid state ionics,2001(3/4):295-299. |
| [13] | Choi N S;Lee Y M;Park J H et al.Interfacial enhancement between lithium electrode and polymer electrolytes[J].Journal of Power Sources,2003,119-121:610. |
| [14] | Kim J S;Yoon W Y .Improvement in lithium cycling efficiency by using lithium powder anode[J].Electrochimica Acta,2004,50:529. |
| [15] | Rahner D;Machill S;Ludwig G .Characterization of lithium and electrolytes by electrochemical impedance spectroscopy[J].Journal of Power Sources,1995,54:378. |
| [16] | Churikov A V;Gamayunova I M;Shirokov A V .Ionic processes in solid-electrolyte passivating films on lithium[J].Journal of Solid State Electrochemistry,2000,4:216. |
| [17] | Kwom C W;Cheon S E;Song J M et al.Characteristics of a Lithium-polymer battery based on a lithium powder anode[J].Journal of Power Sources,2001,93:145. |
| [18] | Ribes A T;Beaunier P;Willmann P et al.Correlation between cycling efficiency and surface morphology of electrodeposited lithium:Effect of fluorinated surface active additives[J].Journal of Power Sources,1996,58:189. |
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