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Recent developments of aprotic lithium-oxygen batteries: functional materials determine the electrochemical performance

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  • ReceivedDec 8, 2016
  • AcceptedJan 10, 2017
  • PublishedJan 27, 2017

Abstract

Lithium oxygen battery has the highest theoretical capacity among the rechargeable batteries and it can reform energy storage technology if it comes to commercialization. However, many critical challenges, mainly embody as low charge/discharge round-trip efficiency and poor cycling stability, impede the development of Li-O2 batteries. The electrolyte decomposition, lithium metal anode corrosion and sluggish oxygen reaction kinetics at cathode are all responsible for poor electrochemical performances. Particularly, the catalytic cathode of Li-O2 batteries, playing a crucial role to reduce the oxygen during discharging and to decompose discharge products during charging, is regarded as a breakthrough point that has been comprehensive investigated. In this review, the progress and issues of electrolyte, anode and cathode, especially the catalysts used at cathode, are systematically summarized and discussed. Then the perspectives toward the developments of a long life Li-O2 battery are also presented at last.


References

[1] B. Dunn, H. Kamath, J.M. Tarascon. Electrical energy storage for the grid: a battery of choices. Science, 334 (2011), pp. 928-935. CrossRef Google Scholar

[2] Z. Yang, J. Zhang, M.C.W. Kintner-Meyer, et al. Electrochemical energy storage for green grid. Chem Rev, 111 (2011), pp. 3577-3613. CrossRef Google Scholar

[3] S. Zhou, J. Chen, L. Gan, et al. Scalable production of self-supported WS2/CNFs by electrospinning as the anode for high-performance lithium-ion batteries. Sci Bull, 61 (2016), pp. 227-235. CrossRef Google Scholar

[4] L. Hu, K. Guo, H. Li, et al. Li-redox flow batteries. Chin Sci Bull, 61 (2016), pp. 350-363 [in Chinese]. Google Scholar

[5] J. Christensen, P. Albertus, R.S. Sanchez-Carrera, et al. A critical review of Li/air batteries. J Electrochem Soc, 159 (2012), pp. R1-R30. CrossRef Google Scholar

[6] N. Feng, P. He, H. Zhou. Critical challenges in rechargeable aprotic Li-O2 batteries. Adv Energy Mater, 6 (2016), p. 1502303. CrossRef Google Scholar

[7] J. Lu, Y.J. Lee, X. Luo, et al. A lithium-oxygen battery based on lithium superoxide. Nature, 529 (2016), pp. 377-382. CrossRef Google Scholar

[8] T. Liu, M. Leskes, W. Yu, et al. Cycling Li-O2 batteries via LiOH formation and decomposition. Science, 350 (2015), pp. 530-533. CrossRef Google Scholar

[9] K. Abraham, Z. Jiang. A polymer electrolyte-based rechargeable lithium/oxygen battery. J Electrochem Soc, 143 (1996), pp. 1-5. CrossRef Google Scholar

[10] T. Ogasawara, A. Débart, M. Holzapfel, et al. Rechargeable Li2O2 electrode for lithium batteries. J Am Chem Soc, 128 (2006), pp. 1390-1393. CrossRef Google Scholar

[11] Z. Ma, X. Yuan, L. Li, et al. A review of cathode materials and structures for rechargeable lithium-air batteries. Energy Environ Sci, 8 (2015), pp. 2144-2198. CrossRef Google Scholar

[12] Z. Chang, J. Xu, Q. Liu, et al. Recent progress on stability enhancement for cathode in rechargeable non-aqueous lithium-oxygen battery. Adv Energy Mater, 5 (2015), p. 1500633. CrossRef Google Scholar

[13] K.N. Jung, J. Kim, Y. Yamauchi, et al. Rechargeable lithium-air batteries: a perspective on the development of oxygen electrodes. J Mater Chem A, 4 (2016), pp. 14050-14068. CrossRef Google Scholar

[14] K.M. Abraham. Electrolyte-directed reactions of the oxygen electrode in lithium-air batteries. J Electrochem Soc, 162 (2015), pp. A3021-A3031. Google Scholar

[15] L. Johnson, C. Li, Z. Liu, et al. The role of LiO2 solubility in O2 reduction in aprotic solvents and its consequences for Li-O2 batteries. Nat Chem, 6 (2014), pp. 1091-1099. CrossRef Google Scholar

[16] A. Débart, J. Bao, G. Armstrong, et al. An O2 cathode for rechargeable lithium batteries: the effect of a catalyst. J Power Sources, 174 (2007), pp. 1177-1182. Google Scholar

[17] F. Mizuno, S. Nakanishi, Y. Kotani, et al. Rechargeable Li-air batteries with carbonate-based liquid electrolytes. Electrochemistry, 78 (2010), pp. 403-405. CrossRef Google Scholar

[18] S.A. Freunberger, Y.H. Chen, Z.Q. Peng, et al. Reactions in the rechargeable Li-O2 battery with alkyl carbonate electrolytes. J Am Chem Soc, 133 (2011), pp. 8040-8047. CrossRef Google Scholar

[19] W. Xu, K. Xu, V.V. Viswanathan, et al. Reaction mechanisms for the limited reversibility of Li-O2 chemistry in organic carbonate electrolytes. J Power Sources, 196 (2011), pp. 9631-9639. Google Scholar

[20] J. Read. Ether-based electrolytes for the lithium/oxygen organic electrolyte battery. J Electrochem Soc, 153 (2006), pp. A96-A100. CrossRef Google Scholar

[21] B.D. Adams, R. Black, Z. Williams, et al. Towards a stable organic electrolyte for the lithium oxygen battery. Adv Energy Mater, 5 (2015), p. 1400867. CrossRef Google Scholar

[22] S.A. Freunberger, Y. Chen, N.E. Drewett, et al. The lithium-oxygen battery with ether-based electrolytes. Angew Chem Int Ed, 50 (2011), pp. 8609-8613. CrossRef Google Scholar

[23] Z.Q. Peng, S.A. Freunberger, Y.H. Chen, et al. A reversible and higher-rate Li-O2 battery. Science, 337 (2012), pp. 563-566. CrossRef Google Scholar

[24] D.G. Kwabi, T.P. Batcho, C.V. Amanchukwu, et al. Chemical instability of dimethyl sulfoxide in lithium-air batteries. J Phys Chem Lett, 5 (2014), pp. 2850-2856. CrossRef Google Scholar

[25] J.L. Shui, J.S. Okasinski, P. Kenesei, et al. Reversibility of anodic lithium in rechargeable lithium-oxygen batteries. Nat Commun, 4 (2013), p. 2255. Google Scholar

[26] P. Tan, Z.H. Wei, W. Shyy, et al. A nano-structured RuO2/NiO cathode enables the operation of non-aqueous lithium-air batteries in ambient air. Energy Environ Sci, 9 (2016), pp. 1783-1793. CrossRef Google Scholar

[27] S. Wu, K. Zhu, J. Tang, et al. A long-life lithium ion oxygen battery based on commercial silicon particles as the anode. Energy Environ Sci, 9 (2016), pp. 3262-3271. CrossRef Google Scholar

[28] W. Walker, V. Giordani, J. Uddin, et al. A rechargeable Li-O2 battery using a lithium nitrate/N,N-dimethylacetamide electrolyte. J Am Chem Soc, 135 (2013), pp. 2076-2079. CrossRef Google Scholar

[29] B. Sun, X. Huang, S. Chen, et al. An optimized LiNO3/DMSO electrolyte for high-performance rechargeable Li-O2 batteries. RSC Adv, 4 (2014), pp. 11115-11120. CrossRef Google Scholar

[30] Q. Liu, J. Xu, S. Yuan, et al. Artificial protection film on lithium metal anode toward long-cycle-life lithium-oxygen batteries. Adv Mater, 27 (2015), pp. 5241-5247. CrossRef Google Scholar

[31] D.J. Lee, H. Lee, Y.J. Kim, et al. Sustainable redox mediation for lithium-oxygen batteries by a composite protective layer on the lithium-metal anode. Adv Mater, 28 (2016), pp. 857-863. CrossRef Google Scholar

[32] P.G. Bruce, S.A. Freunberger, L.J. Hardwick, et al. Li-O2 and Li-S batteries with high energy storage. Nat Mater, 11 (2012), pp. 19-29. Google Scholar

[33] Q. Cui, Y. Zhang, S. Ma, et al. Li2O2 oxidation: the charging reaction in the aprotic Li-O2 batteries. Sci Bull, 60 (2015), pp. 1227-1234. CrossRef Google Scholar

[34] M. Mirzaeian, P.J. Hall. Preparation of controlled porosity carbon aerogels for energy storage in rechargeable lithium oxygen batteries. Electrochim Acta, 54 (2009), pp. 7444-7451. Google Scholar

[35] J. Xiao, D.H. Wang, W. Xu, et al. Optimization of air electrode for Li/air batteries. J Electrochem Soc, 157 (2010), pp. A487-A492. CrossRef Google Scholar

[36] Z. Guo, D. Zhou, X. Dong, et al. Ordered hierarchical mesoporous/macroporous carbon: a high-performance catalyst for rechargeable Li-O2 batteries. Adv Mater, 25 (2013), pp. 5668-5672. CrossRef Google Scholar

[37] X. Lin, L. Zhou, T. Huang, et al. Hierarchically porous honeycomb-like carbon as a lithium-oxygen electrode. J Mater Chem A, 1 (2013), pp. 1239-1245. CrossRef Google Scholar

[38] X. Guo, B. Sun, J. Zhang, et al. Ruthenium decorated hierarchically ordered macro-mesoporous carbon for lithium oxygen batteries. J Mater Chem A, 4 (2016), pp. 9774-9780. CrossRef Google Scholar

[39] M.M. Ottakam Thotiyl, S.A. Freunberger, Z. Peng, et al. The carbon electrode in nonaqueous Li-O2 cells. J Am Chem Soc, 135 (2013), pp. 494-500. CrossRef Google Scholar

[40] H.K. Lim, H.D. Lim, K.Y. Park, et al. Toward a lithium-"air" battery: the effect of CO2 on the chemistry of a lithium-oxygen cell. J Am Chem Soc, 135 (2013), pp. 9733-9742. CrossRef Google Scholar

[41] P. Tan, W. Shyy, L. An, et al. A gradient porous cathode for non-aqueous lithium-air batteries leading to a high capacity. Electrochem Commun, 46 (2014), pp. 111-114. Google Scholar

[42] H.D. Lim, K.Y. Park, H. Song, et al. Enhanced power and rechargeability of a Li-O2 battery based on a hierarchical-fibril CNT electrode. Adv Mater, 25 (2013), pp. 1348-1352. CrossRef Google Scholar

[43] R.R. Mitchell, B.M. Gallant, C.V. Thompson, et al. All-carbon-nanofiber electrodes for high-energy rechargeable Li-O2 batteries. Energy Environ Sci, 4 (2011), pp. 2952-2958. CrossRef Google Scholar

[44] B. Sun, B. Wang, D. Su, et al. Graphene nanosheets as cathode catalysts for lithium-air batteries with an enhanced electrochemical performance. Carbon, 50 (2012), pp. 727-733. Google Scholar

[45] Y.B. Yin, J.J. Xu, Q.C. Liu, et al. Macroporous interconnected hollow carbon nanofibers inspired by golden-toad eggs toward a binder-free, high-rate, and flexible electrode. Adv Mater, 28 (2016), pp. 7494-7500. CrossRef Google Scholar

[46] B. Sun, S. Chen, H. Liu, et al. Mesoporous carbon nanocube architecture for high-performance lithium-oxygen batteries. Adv Funct Mater, 25 (2015), pp. 4436-4444. CrossRef Google Scholar

[47] B. Sun, X. Huang, S. Chen, et al. Porous graphene nanoarchitectures: an efficient catalyst for low charge-overpotential, long life, and high capacity lithium-oxygen batteries. Nano Lett, 14 (2014), pp. 3145-3152. CrossRef Google Scholar

[48] B.D. McCloskey, A. Speidel, R. Scheffler, et al. Twin problems of interfacial carbonate formation in nonaqueous Li-O2 batteries. J Phys Chem Lett, 3 (2012), pp. 997-1001. CrossRef Google Scholar

[49] F. Wu, Y. Xing, L. Li, et al. Facile synthesis of boron-doped rGO as cathode material for high energy Li-O2 batteries. ACS Appl Mater Interfaces, 8 (2016), pp. 23635-23645. CrossRef Google Scholar

[50] Y. Jing, Z. Zhou. Computational insights into oxygen reduction reaction and initial Li2O2 nucleation on pristine and n-doped graphene in Li-O2 batteries. ACS Catal, 5 (2015), pp. 4309-4317. CrossRef Google Scholar

[51] J. Shui, F. Du, C. Xue, et al. Vertically aligned n-doped coral-like carbon fiber arrays as efficient air electrodes for high-performance nonaqueous Li-O2 batteries. ACS Nano, 8 (2014), pp. 3015-3022. CrossRef Google Scholar

[52] A. Débart, A.J. Paterson, J. Bao, et al. Α-MnO2 nanowires: a catalyst for the O2 electrode in rechargeable lithium batteries. Angew Chem, 120 (2008), pp. 4597-4600. CrossRef Google Scholar

[53] L. Zhang, Z. Wang, D. Xu, et al. Α-MnO2 hollow clews for rechargeable Li-air batteries with improved cyclability. Chin Sci Bull, 57 (2012), pp. 4210-4214. CrossRef Google Scholar

[54] S. Tong, M. Zheng, Y. Lu, et al. Mesoporous NiO with a single-crystalline structure utilized as a noble metal-free catalyst for non-aqueous Li-O2 batteries. J Mater Chem A, 3 (2015), pp. 16177-16182. CrossRef Google Scholar

[55] J. Yin, J.M. Carlin, J. Kim, et al. Synergy between metal oxide nanofibers and graphene nanoribbons for rechargeable lithium-oxygen battery cathodes. Adv Energy Mater, 5 (2015), p. 1401412. CrossRef Google Scholar

[56] B. Sun, H. Liu, P. Munroe, et al. Nanocomposites of CoO and a mesoporous carbon (CMK-3) as a high performance cathode catalyst for lithium-oxygen batteries. Nano Resh, 5 (2012), pp. 460-469. CrossRef Google Scholar

[57] J.K. Zhang, P.F. Li, Z.H. Wang, et al. Three-dimensional graphene-Co3O4 cathodes for rechargeable Li-O2 batteries. J Mater Chem A, 3 (2015), pp. 1504-1510. CrossRef Google Scholar

[58] J. Tang, S. Wu, T. Wang, et al. Cage-type highly graphitic porous carbon-Co3O4 polyhedron as the cathode of lithium-oxygen batteries. ACS Appl Mater Interfaces, 8 (2016), pp. 2796-2804. CrossRef Google Scholar

[59] B. Sun, J. Zhang, P. Munroe, et al. Hierarchical NiCo2O4 nanorods as an efficient cathode catalyst for rechargeable non-aqueous Li-O2 batteries. Electrochem Commun, 31 (2013), pp. 88-91. Google Scholar

[60] B. Sun, X.D. Huang, S.Q. Chen, et al. Hierarchical macroporous/mesoporous NiCo2O4 nanosheets as cathode catalysts for rechargeable Li-O2 batteries. J Mater Chem A, 2 (2014), pp. 12053-12059. CrossRef Google Scholar

[61] S.G. Mohamed, Y.Q. Tsai, C.J. Chen, et al. Ternary spinel MCo2O4 (M = Mn, Fe, Ni, and Zn) porous nanorods as bifunctional cathode materials for lithium-O2 batteries. ACS Appl Mater Interfaces, 7 (2015), pp. 12038-12046. CrossRef Google Scholar

[62] Z. Wang, D. Xu, J. Xu, et al. Oxygen electrocatalysts in metal-air batteries: from aqueous to nonaqueous electrolytes. Chem Soc Rev, 43 (2014), pp. 7746-7786. CrossRef Google Scholar

[63] D. Su, S. Dou, G. Wang. Single crystalline Co3O4 nanocrystals exposed with different crystal planes for Li-O2 batteries. Sci Rep, 4 (2014), p. 5767. CrossRef Google Scholar

[64] B. Liu, P. Yan, W. Xu, et al. Electrochemically formed ultrafine metal oxide nanocatalysts for high-performance lithium-oxygen batteries. Nano Lett, 16 (2016), pp. 4932-4939. CrossRef Google Scholar

[65] D. Kundu, R. Black, E.J. Berg, et al. A highly active nanostructured metallic oxide cathode for aprotic Li-O2 batteries. Energy Environ Sci, 8 (2015), pp. 1292-1298. CrossRef Google Scholar

[66] M.M.O. Thotiyl, S.A. Freunberger, Z.Q. Peng, et al. A stable cathode for the aprotic Li-O2 battery. Nat Mater, 12 (2013), pp. 1049-1055. Google Scholar

[67] F. Li, R. Ohnishi, Y. Yamada, et al. Carbon supported tin nanoparticles: an efficient bifunctional catalyst for non-aqueous Li-O2 batteries. Chem Commun, 49 (2013), pp. 1175-1177. CrossRef Google Scholar

[68] D. Kundu, R. Black, B. Adams, et al. Nanostructured metal carbides for aprotic Li-O2 batteries: new insights into interfacial reactions and cathode stability. J Phys Chem Lett, 6 (2015), pp. 2252-2258. CrossRef Google Scholar

[69] W. Luo, X. Gao, S. Chou, et al. Porous AgPd-Pd composite nanotubes as highly efficient electrocatalysts for lithium-oxygen batteries. Adv Mater, 27 (2015), pp. 6862-6869. CrossRef Google Scholar

[70] W. Luo, X. Gao, D. Shi, et al. Binder-free and carbon-free 3D porous air electrode for Li-O2 batteries with high efficiency, high capacity, and long life. Small, 12 (2016), pp. 3031-3038. CrossRef Google Scholar

[71] H. Liu, Y. Zheng, G. Wang, et al. A three-component nanocomposite with synergistic reactivity for oxygen reduction reaction in alkaline solution. Adv Energy Mater, 5 (2015), p. 1401186. CrossRef Google Scholar

[72] Y.C. Lu, H.A. Gasteiger, Y. Shao-Horn. Catalytic activity trends of oxygen reduction reaction for nonaqueous Li-air batteries. J Am Chem Soc, 133 (2011), pp. 19048-19051. Google Scholar

[73] Y.C. Lu, Z. Xu, H.A. Gasteiger, et al. Platinum-gold nanoparticles: a highly active bifunctional electrocatalyst for rechargeable lithium-air batteries. J Am Chem Soc, 132 (2010), pp. 12170-12171. CrossRef Google Scholar

[74] J. Xu, Z. Wang, D. Xu, et al. Tailoring deposition and morphology of discharge products towards high-rate and long-life lithium-oxygen batteries. Nat Commun, 4 (2013). Google Scholar

[75] J. Lu, L. Cheng, K.C. Lau, et al. Effect of the size-selective silver clusters on lithium peroxide morphology in lithium-oxygen batteries. Nat Commun, 5 (2014), p. 4895. CrossRef Google Scholar

[76] D. Su, S. Dou, G. Wang. Gold nanocrystals with variable index facets as highly effective cathode catalysts for lithium-oxygen batteries. NPG Asia Mater, 7 (2015), p. e155. CrossRef Google Scholar

[77] D.W. Su, S.X. Dou, G.X. Wang. Hierarchical Ru nanospheres as highly effective cathode catalysts for Li-O2 batteries. J Mater Chem A, 3 (2015), pp. 18384-18388. CrossRef Google Scholar

[78] K. Liao, T. Zhang, Y. Wang, et al. Nanoporous Ru as a carbon- and binder-free cathode for Li-O2 batteries. ChemSusChem, 8 (2015), pp. 1429-1434. CrossRef Google Scholar

[79] F. Li, D.M. Tang, T. Zhang, et al. Superior performance of a Li-O2 battery with metallic RuO2 hollow spheres as the carbon-free cathode. Adv Energy Mater, 5 (2015), p. 1500294. CrossRef Google Scholar

[80] B. Sun, P. Munroe, G. Wang. Ruthenium nanocrystals as cathode catalysts for lithium-oxygen batteries with a superior performance. Sci Rep, 3 (2013), p. 2247. Google Scholar

[81] F. Li, Y. Chen, D.M. Tang, et al. Performance-improved Li-O2 battery with Ru nanoparticles supported on binder-free multi-walled carbon nanotube paper as cathode. Energy Environ Sci, 7 (2014), pp. 1648-1652. CrossRef Google Scholar

[82] D. Su, D. Han Seo, Y. Ju, et al. Ruthenium nanocrystal decorated vertical graphene nanosheets@Ni foam as highly efficient cathode catalysts for lithium-oxygen batteries. NPG Asia Mater, 8 (2016), p. e286. CrossRef Google Scholar

[83] X. Guo, P. Liu, J. Han, et al. 3D nanoporous nitrogen-doped graphene with encapsulated RuO2 nanoparticles for Li-O2 batteries. Adv Mater, 27 (2015), pp. 6137-6143. CrossRef Google Scholar

[84] B. Sun, L. Guo, Y. Ju, et al. Unraveling the catalytic activities of ruthenium nanocrystals in high performance aprotic Li-O2 batteries. Nano Energy, 28 (2016), pp. 486-494. Google Scholar

[85] F. Li, S. Wu, D. Li, et al. The water catalysis at oxygen cathodes of lithium-oxygen cells. Nat Commun, 6 (2015), p. 7843. CrossRef Google Scholar

[86] Y.H. Chen, S.A. Freunberger, Z.Q. Peng, et al. Charging a Li-O2 battery using a redox mediator. Nat Chem, 5 (2013), pp. 489-494. CrossRef Google Scholar

[87] T. Zhang, K. Liao, P. He, et al. A self-defense redox mediator for efficient lithium-O2 batteries. Energy Environ Sci, 9 (2016), pp. 1024-1030. CrossRef Google Scholar

[88] H.D. Lim, B. Lee, Y. Zheng, et al. Rational design of redox mediators for advanced Li-O2 batteries. Nat Energy, 1 (2016), p. 16066. CrossRef Google Scholar

[89] J. Zhang, B. Sun, X. Xie, et al. A bifunctional organic redox catalyst for rechargeable lithium-oxygen batteries with enhanced performances. Adv Sci, 3 (2016), p. 1500285. CrossRef Google Scholar

[90] J. Zhang, B. Sun, A.M. McDonagh, et al. A multi-functional gel co-polymer bridging liquid electrolyte and solid cathode nanoparticles: an efficient route to Li-O2 batteries with improved performance. Energy Storage Mater, 7 (2017), pp. 1-7. CrossRef Google Scholar

[91] M. Zhang, Q. Xu, L. Sang, et al. A novel monoclinic manganite/multi-walled carbon nanotubes composite as a cathode material of lithium-air batteries. Chin Sci Bull, 59 (2014), pp. 2973-2979. CrossRef Google Scholar

[92] J. Zhang, B. Sun, H.J. Ahn, et al. Conducting polymer-doped polyprrrole as an effective cathode catalyst for Li-O2 batteries. Mater Res Bull, 48 (2013), pp. 4979-4983. Google Scholar

[93] Y. Yang, W. Yin, S. Wu, et al. Perovskite-type LaSrMnO electrocatalyst with uniform porous structure for an efficient Li-O2 battery cathode. ACS Nano, 10 (2016), pp. 1240-1248. CrossRef Google Scholar

[94] J. Yi, K. Liao, C. Zhang, et al. Facile in situ preparation of graphitic-C3N4@carbon paper as an efficient metal-free cathode for nonaqueous Li-O2 battery. ACS Appl Mater Interfaces, 7 (2015), pp. 10823-10827. CrossRef Google Scholar

[95] X. Lu, Y. Yin, L. Zhang, et al. Hierarchically porous Pd/NiO nanomembranes as cathode catalysts in Li-O2 batteries. Nano Energy, 30 (2016), pp. 69-76. Google Scholar

[96] Y. Tu, H. Li, D. Deng, et al. Low charge overpotential of lithium-oxygen batteries with metallic Co encapsulated in single-layer graphene shell as the catalyst. Nano Energy, 30 (2016), pp. 877-884. Google Scholar

[97] J. Zhang, B. Sun, X. Xie, et al. Enhancement of stability for lithium oxygen batteries by employing electrolytes gelled by poly(vinylidene fluoride-co-hexafluoropropylene) and tetraethylene glycol dimethyl ether. Electrochim Acta, 183 (2015), pp. 56-62. Google Scholar

[98] X. Zhu, T. Zhao, Z. Wei, et al. A high-rate and long cycle life solid-state lithium-air battery. Energy Environ Sci, 8 (2015), pp. 3745-3754. CrossRef Google Scholar

[99] A.C. Luntz, B.D. McCloskey. Nonaqueous Li-air batteries: a status report. Chem Rev, 114 (2014), pp. 11721-11750. CrossRef Google Scholar

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