基于LiFSI和LiTFSI电解液对铝箔腐蚀的抑制方法
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摘要
铝集流体的腐蚀是限制氟代磺酰亚胺锂盐在锂离子电池中广泛应用的主要因素。铝集流体在氟代磺酰亚胺锂盐电解液中的腐蚀大致分为两个步骤:首先铝集流体表面的氧化膜遭到破坏,暴露出活性更高的铝层;然后铝在较高的电位下产生的氧化产物溶解到电解液中,造成腐蚀。通过在氟代磺酰亚胺锂盐类电解液中加入含氟添加剂、使用高浓度电解液、改变电解液的溶剂组成和修饰亚胺阴离子结构等方法可抑制铝集流体的腐蚀。
Aluminum current collector is easily corroded,which is the main factor limiting the application of lithium fluorosulfonimide in lithium ion batteries. Approximately,the corrosion of aluminum current collector in lithium fluorosulfonimide based electrolyte consists of two steps:( 1) the oxidation film on the surface of aluminum current collector is damaged,leading to exposure of higher-active aluminum layer;( 2) the oxidation products generated from aluminum at high electrical potential dissolve into electrolyte,resulting in corrosion of aluminum current collector. The corrosion can be inhibited by adding fluorine-containing additives into lithium fluorosulfonimide based electrolyte,using high concentration electrolyte,changing the solvent composition of electrolyte or modifying the structure of imine anion.
Aluminum current collector is easily corroded,which is the main factor limiting the application of lithium fluorosulfonimide in lithium ion batteries. Approximately,the corrosion of aluminum current collector in lithium fluorosulfonimide based electrolyte consists of two steps:( 1) the oxidation film on the surface of aluminum current collector is damaged,leading to exposure of higher-active aluminum layer;( 2) the oxidation products generated from aluminum at high electrical potential dissolve into electrolyte,resulting in corrosion of aluminum current collector. The corrosion can be inhibited by adding fluorine-containing additives into lithium fluorosulfonimide based electrolyte,using high concentration electrolyte,changing the solvent composition of electrolyte or modifying the structure of imine anion.
引文
[1]韦连梅,燕溪溪,张素娜,等.锂离子电池低温电解液研究进展[J].储能科学与技术,2017,6(1):69-77.
[2]李世友,赵冬妮,崔孝玲,等.锂离子电池新型电解质锂盐的研究进展[J].化工新型材料,2016,44(9):56-58.
[3]李萌,邱景义,张松通,等.新型锂盐氟代磺酰亚胺锂电解液对锂离子电池性能的影响[J].储能科学与技术,2017,6(1):101-107.
[4]刘旭,杨续来.锂离子电池电解质锂盐的研究进展[J].电源技术,2016,40(1):218-220.
[5]Brox S,R9ser S,Streipert B,et al.Innovative,non-corrosive Li TFSI cyanoester-based electrolyte for safer 4 V lithium-ion batteries[J].Chemelectrochem,2017,4(2):304-309.
[6]Kerner M,Plylahan N,Scheers J,et al. Thermal stability and decomposition of lithium bis(fluorosulfonyl)imide(Li FSI)salts[J].RSC Advances,2016,6(28):23327-23334.
[7]陈付春.新型锂盐Li BOB电解质溶液的热力学及电化学研究[D].南昌:南昌大学,2016:3.
[8]郑丽萍.新型氟磺酰亚胺锂盐应用于锂离子电池的研究[D].武汉:华中科技大学,2016:9-10.
[9]Xie Y,Xiang H,Shi P,et al. Enhanced separator wettability by Li TFSI and its application for lithium metal batteries[J].Journal of Membrane Science,2017,524:315-320.
[10]龚?,李法强,贾国凤,等.双(三氟甲基磺酰)亚胺锂的合成与表征[J].盐湖研究,2015,23(4):59-65.
[11]刘成勇,张恒,郑丽萍,等.新型导电盐(三氟甲基磺酰)(三氟乙氧基磺酰)亚胺锂及其非水电解液的制备与性能[J].高等学校化学学报,2014,35(8):1771-1781.
[12]韩洪波.氟磺酰亚胺碱金属盐和离子液体:合成、表征以及在锂离子电池中的应用[D].武汉:华中科技大学,2012:16.
[13]薛峰峰,王建萍,王鹏杰,等.双(氟磺酰)亚胺锂制备和应用研究进展[J].河南化工,2016,33(9):11-15.
[14]Kang S J,Park K,Park S H,et al.Unraveling the role of Li FSI electrolyte in the superior performance of graphite anodes for Li-ion batteries[J].Electrochimica Acta,2018,259:949-954.
[15]Shkrob I A,Pupek K Z,Abraham D P.Allotropic control:How certain fluorinated carbonate electrolytes protect aluminum current collectors by promoting the formation of insoluble coordination polymers[J].Journal of Physical Chemistry C,2016. doi:10.1021/acs.jpcc.6b05241.
[16]Yan G,Li X,Wang Z,et al.Lithium difluoro(oxalato)borate as an additive to suppress the aluminum corrosion in lithium bis(fluorosulfony)imide-based nonaqueous carbonate electrolyte[J]. Journal of Solid State Electrochemistry,2016,20(2):507-516.
[17]Shangguan X,Jia G,Li F,et al.Mixed salts of Li FSI and Li ODFB for stable Li CoO2-based batteries[J]. Journal of the Electrochemical Society,2016,163(13):A2797-A2802.
[18]王青磊,李法强,贾国凤,等.混合锂盐Li TFSI-Li ODFB基电解液的高温性能[J].电池,2016,46(4):177-180.
[19]Zhang Z A,Zhao X X,Peng B,et al.Mixed salts for lithium iron phosphate-based batteries operated at wide temperature range[J].Transactions of Nonferrous Metals Society of China,2015,25(7):2260-2265.
[20]Chen X,Xu W,Engelhard M,et al. Mixed salts of Li TFSI and Li BOB for stable Li Fe PO4-based batteries at elevated temperatures[J].Journal of Materials Chemistry A,2014,2(7):2346-2352.
[21]Matsumoto K,Inoue K,Nakahara K,et al.Suppression of aluminum corrosion by using high concentration Li TFSI electrolyte[J].Journal of Power Sources,2013,231(2):234-238.
[22]Dennis W Mc Owen,Daniel M Seo,Oleg Borodin,et al.Concentrated electrolytes:Decrypting electrolyte properties and reassessing Al corrosion mechanisms[J].Energy&Environmental Science,2013,7(1):416-426.
[23]Wang J,Yamada Y,Sodeyama K,et al. Superconcentrated electrolytes for a high-voltage lithium-ion battery[J]. Nature Communications,2016.doi:10.1038/ncomms12032.
[24]Yamada Y,Chiang C H,Sodeyama K,et al. Corrosion prevention mechanism of aluminum metal in superconcentrated electrolytes[J].Chemelectrochem,2016,2(11):1687-1694.
[25]Wang X,Yasukawa E,Mori S.Inhibition of anodic corrosion of aluminum cathode current collector on recharging in lithium imide electrolytes[J].Electrochimica Acta,2000,45(17):2677-2684.
[26]Sebastain Brox,Stephan Rcser,Benjamin Streipert,et al.Innovative,non-corrosive Li TFSI cyanoester-based electrolyte for safer 4 V lithium-ion btteries[J]. Chem Electro Chem,2016,3:1-7.
[27]Shkrob I A,Pupek K Z,Abraham D P.Allotropic control:How certain fluorinated carbonate electrolytes protect aluminum current collectors by promoting the formation of insoluble coordination polymers[J].Journal of Physical Chemistry C,2016. doi:10.1021/acs.jpcc.6b05241.
[2]李世友,赵冬妮,崔孝玲,等.锂离子电池新型电解质锂盐的研究进展[J].化工新型材料,2016,44(9):56-58.
[3]李萌,邱景义,张松通,等.新型锂盐氟代磺酰亚胺锂电解液对锂离子电池性能的影响[J].储能科学与技术,2017,6(1):101-107.
[4]刘旭,杨续来.锂离子电池电解质锂盐的研究进展[J].电源技术,2016,40(1):218-220.
[5]Brox S,R9ser S,Streipert B,et al.Innovative,non-corrosive Li TFSI cyanoester-based electrolyte for safer 4 V lithium-ion batteries[J].Chemelectrochem,2017,4(2):304-309.
[6]Kerner M,Plylahan N,Scheers J,et al. Thermal stability and decomposition of lithium bis(fluorosulfonyl)imide(Li FSI)salts[J].RSC Advances,2016,6(28):23327-23334.
[7]陈付春.新型锂盐Li BOB电解质溶液的热力学及电化学研究[D].南昌:南昌大学,2016:3.
[8]郑丽萍.新型氟磺酰亚胺锂盐应用于锂离子电池的研究[D].武汉:华中科技大学,2016:9-10.
[9]Xie Y,Xiang H,Shi P,et al. Enhanced separator wettability by Li TFSI and its application for lithium metal batteries[J].Journal of Membrane Science,2017,524:315-320.
[10]龚?,李法强,贾国凤,等.双(三氟甲基磺酰)亚胺锂的合成与表征[J].盐湖研究,2015,23(4):59-65.
[11]刘成勇,张恒,郑丽萍,等.新型导电盐(三氟甲基磺酰)(三氟乙氧基磺酰)亚胺锂及其非水电解液的制备与性能[J].高等学校化学学报,2014,35(8):1771-1781.
[12]韩洪波.氟磺酰亚胺碱金属盐和离子液体:合成、表征以及在锂离子电池中的应用[D].武汉:华中科技大学,2012:16.
[13]薛峰峰,王建萍,王鹏杰,等.双(氟磺酰)亚胺锂制备和应用研究进展[J].河南化工,2016,33(9):11-15.
[14]Kang S J,Park K,Park S H,et al.Unraveling the role of Li FSI electrolyte in the superior performance of graphite anodes for Li-ion batteries[J].Electrochimica Acta,2018,259:949-954.
[15]Shkrob I A,Pupek K Z,Abraham D P.Allotropic control:How certain fluorinated carbonate electrolytes protect aluminum current collectors by promoting the formation of insoluble coordination polymers[J].Journal of Physical Chemistry C,2016. doi:10.1021/acs.jpcc.6b05241.
[16]Yan G,Li X,Wang Z,et al.Lithium difluoro(oxalato)borate as an additive to suppress the aluminum corrosion in lithium bis(fluorosulfony)imide-based nonaqueous carbonate electrolyte[J]. Journal of Solid State Electrochemistry,2016,20(2):507-516.
[17]Shangguan X,Jia G,Li F,et al.Mixed salts of Li FSI and Li ODFB for stable Li CoO2-based batteries[J]. Journal of the Electrochemical Society,2016,163(13):A2797-A2802.
[18]王青磊,李法强,贾国凤,等.混合锂盐Li TFSI-Li ODFB基电解液的高温性能[J].电池,2016,46(4):177-180.
[19]Zhang Z A,Zhao X X,Peng B,et al.Mixed salts for lithium iron phosphate-based batteries operated at wide temperature range[J].Transactions of Nonferrous Metals Society of China,2015,25(7):2260-2265.
[20]Chen X,Xu W,Engelhard M,et al. Mixed salts of Li TFSI and Li BOB for stable Li Fe PO4-based batteries at elevated temperatures[J].Journal of Materials Chemistry A,2014,2(7):2346-2352.
[21]Matsumoto K,Inoue K,Nakahara K,et al.Suppression of aluminum corrosion by using high concentration Li TFSI electrolyte[J].Journal of Power Sources,2013,231(2):234-238.
[22]Dennis W Mc Owen,Daniel M Seo,Oleg Borodin,et al.Concentrated electrolytes:Decrypting electrolyte properties and reassessing Al corrosion mechanisms[J].Energy&Environmental Science,2013,7(1):416-426.
[23]Wang J,Yamada Y,Sodeyama K,et al. Superconcentrated electrolytes for a high-voltage lithium-ion battery[J]. Nature Communications,2016.doi:10.1038/ncomms12032.
[24]Yamada Y,Chiang C H,Sodeyama K,et al. Corrosion prevention mechanism of aluminum metal in superconcentrated electrolytes[J].Chemelectrochem,2016,2(11):1687-1694.
[25]Wang X,Yasukawa E,Mori S.Inhibition of anodic corrosion of aluminum cathode current collector on recharging in lithium imide electrolytes[J].Electrochimica Acta,2000,45(17):2677-2684.
[26]Sebastain Brox,Stephan Rcser,Benjamin Streipert,et al.Innovative,non-corrosive Li TFSI cyanoester-based electrolyte for safer 4 V lithium-ion btteries[J]. Chem Electro Chem,2016,3:1-7.
[27]Shkrob I A,Pupek K Z,Abraham D P.Allotropic control:How certain fluorinated carbonate electrolytes protect aluminum current collectors by promoting the formation of insoluble coordination polymers[J].Journal of Physical Chemistry C,2016. doi:10.1021/acs.jpcc.6b05241.