电解质在电化学储能中起着至关重要的作用。在锂离子电池(LIB)中,液体电解质(LE)在几十年的发展中表现出了优异的性能,如高的离子电导率(10-3S/cm)和与电极良好的接触。然而,LE中的安全问题以及由枝晶生长引起的性能退化严重阻碍了LIB的实际应用。因此,聚合物电解质(PE)有望取代LE。固体聚合物电解质(SPE)虽然有很好的安全性和机械性能,但其受温度限制,离子电导率较低,且与电极接触较差,电池循环性较差。凝胶聚合物电解质(GPE)结合两者的优点,被认为是现有有机液体电解质的有效替代品,它可以用来制造更安全的锂电池。对现有聚合物基体的交联、共聚和混合改性——能够提高电解质的电化学性能的方法进行了综述。同时也对GPE在LIB中的最新研究进展进行了综述,并介绍了新型生物基凝胶电解质基体。最后,展望了制造性能优异的基于GPEs的LIB电池面临的挑战和发展方向。
Electrolytes play a crucial role in electrochemical energy storage.In lithium-ion batteries (LIB),liquid electrolytes (LE) have shown excellent properties over decades of development,such as high ionic conductivity (10-3S/cm) and good contact with electrodes.However,safety problems in LE and performance degradation caused by dendrite growth seriously hinder the practical application of LIB.Therefore,polymer electrolytes (PE) are expected to replace LE.Although solid polymer electrolyte (SPE) have good safety and mechanical properties,they are limited by temperature,and have low ionic conductivity and poor contact with electrodes,resulting in poor battery circularity.Gel polymer electrolytes (GPEs) combine the advantages of both and are considered an effective alternative to existing organic liquid electrolytes,which can be used to make safer lithium batteries.In this paper,we summarized the existing methods of crosslinking,copolymerization and hybrid modification of polymer matrices to improve the electrochemical performance of electrolytes.At the same time,the latest research progress of GPE in LIB was reviewed,and the novel bio-based gel electrolyte matrices were introduced.Finally,the challenges and development directions of GPEs-based LIB batteries with excellent performance were discussed.
[1] Singh S K,Gupta H,Balo L,et al.Electrochemical characterization of ionic liquid based gel polymer electrolyte for lithium battery application[J].Ionics,2018,24(7):1895-1906.
[2] Sheng J,Tong S,He Z,et al.Recent developments of cellulose materials for lithium-ion battery separators[J].Cellulose,2017,24(10):4103-4122.
[3] Yuan G,Zhang H,Wang M,et al.Study of poly (organic palygorskite-methyl methacrylate)/poly (ethylene oxide) blended gel polymer electrolyte for lithium-ion batteries[J].Journal of Applied Polymer Science,2021,138(6):49799.
[4] Cui Y,Chai J,Du H,et al.Facile and reliable in situ polymerization of poly (ethyl cyanoacrylate)-based polymer electrolytes toward flexible lithium batteries[J].ACS Applied Materials & Interfaces,2017,9(10):8737-8741.
[5] Zhu M,Wu J,Wang Y,et al.Recent advances in gel polymer electrolyte for high-performance lithium batteries[J].Journal of Energy Chemistry,2019,37:126-142.
[6] Long M C,Wang T,Duan P H,et al.Thermotolerant and fireproof gel polymer electrolyte toward high-performance and safe lithium-ion battery[J].Journal of Energy Chemistry,2022,65:9-18.
[7] Gohel K,Kanchan D K.Effect of PC:DEC plasticizers on structural and electrical properties of PVDF-HFP:PMMA based gel polymer electrolyte system[J].Journal of Materials Science:Materials in Electronics,2019,30(13):12260-12268.
[8] Liu C,Sacci R L,Sahore R,et al.Polyacrylonitrile-based electrolytes:how processing and residual solvent affect ion transport and stability[J].Journal of Power Sources,2022,527:231165.
[9] Yang Q,Deng N,Chen J,et al.The recent research progress and prospect of gel polymer electrolytes in lithium-sulfur batteries[J].Chemical Engineering Journal,2021,413:127427.
[10] Baskoro F,Wong H Q,Yen H J.Strategic structural design of a gel polymer electrolyte toward a high efficiency lithium-ion battery[J].ACS Applied Energy Materials,2019,2(6):3937-3971.
[11] Li W,Pang Y,Liu J,et al.A PEO-based gel polymer electrolyte for lithium ion batteries[J].RSC Advances,2017,7(38):23494-23501.
[12] Na R,Lu N,Zhang S,et al.Facile synthesis of a high-performance,fire-retardant organic gel polymer electrolyte for flexible solid-state supercapacitors[J].Electrochimica Acta,2018,290:262-272.
[13] Jiang Y,Yan X,Ma Z,et al.Development of the PEO based solid polymer electrolytes for all-solid state lithium ion batteries[J].Polymers,2018,10(11):1237.
[14] Siyal S H,Li M,Li H,et al.Ultraviolet irradiated PEO/LATP composite gel polymer electrolytes for lithium-metallic batteries (LMBs)[J].Applied Surface Science,2019,494:1119-1126.
[15] Singh S,Arora N,Paul K,et al.FT-IR and rheological studies of PMMA-based nano-dispersed gel polymer electrolytes incorporated with LiBF4 and SiO2[J].Ionics,2019,25(4):1495-1503.
[16] Huang Y,Liu B,Cao H,et al.Novel gel polymer electrolyte based on matrix of PMMA modified with polyhedral oligomeric silsesquioxane[J].Journal of Solid State Electrochemistry,2017,21(8):2291-2299.
[17] Zhao L,Huang Y,Liu B,et al.Gel polymer electrolyte based on polymethyl methacrylate matrix composited with methacrylisobutyl-polyhedral oligomeric silsesquioxane by phase inversion method[J].Electrochimica Acta,2018,278:1-12.
[18] Wang X,Hao X,Xia Y,et al.A polyacrylonitrile (PAN)-based double-layer multifunctional gel polymer electrolyte for lithium-sulfur batteries[J].Journal of Membrane Science,2019,582:37-47.
[19] Liu B,Huang Y,Cao H,et al.A novel porous gel polymer electrolyte based on poly (acrylonitrile-polyhedral oligomeric silsesquioxane) with high performances for lithium-ion batteries[J].Journal of Membrane Science,2018,545:140-149.
[20] 袁鸽,王梦琨,熊莲,等.锂离子电池凝胶电解质研究进展[J].新能源进展,2020,8(4):331-338.
[21] Xiao Q,Deng C,Wang Q,et al.In situ cross-linked gel polymer electrolyte membranes with excellent thermal stability for lithium ion batteries[J].ACS Omega,2019,4(1):95-103.
[22] Kang S,Yang Z,Yang C,et al.Co-blending based tribasic PEO-PS-PMMA gel polymer electrolyte for quasi-solid-state lithium metal batteries[J].Ionics,2021,27(5):2037-2043.
[23] Jamalpour S,Ghahramani M,Ghaffarian S R,et al.The effect of poly (hydroxyl ethyl methacrylate) on the performance of PVDF/P (MMA-co-HEMA) hybrid gel polymer electrolytes for lithium ion battery application[J].Polymer,2020,195:122427.
[24] Faizrin Fuzlin A,Nagao Y,Samsudin A S.Ionic conductivity study of ethylene carbonate as a plasticizer in alginate bio-based polymer electrolytes[J].Macromolecular Symposia,2021,397(1):2000236.
[25] Zhao L,Fu J,Du Z,et al.High-strength and flexible cellulose/PEG based gel polymer electrolyte with high performance for lithium ion batteries[J].Journal of Membrane Science,2020,593:117428.
[26] Gou J,Liu W,Tang A.A renewable and biodegradable nanocellulose-based gel polymer electrolyte for lithium-ion battery[J].Journal of Materials Science,2020,55(24):10699-10711.
[27] Poosapati A,Jang E,Madan D,et al.Cellulose hydrogel as a flexible gel electrolyte layer[J].MRS Communications,2019,9(1):122-128.
[28] Zhang M Y,Li M X,Chang Z,et al.A sandwich PVDF/HEC/PVDF gel polymer electrolyte for lithium ion battery[J].Electrochimica Acta,2017,245:752-759.
[29] Du Z,Su Y,Qu Y,et al.A mechanically robust,biodegradable and high performance cellulose gel membrane as gel polymer electrolyte of lithium-ion battery[J].Electrochimica Acta,2019,299:19-26.
[30] Zhang P,Li R,Huang J,et al.Flexible poly (vinylidene fluoride-co-hexafluoropropylene)-based gel polymer electrolyte for high-performance lithium-ion batteries[J].RSC Advances,2021,11(20):11943-11951.
[31] Xue C,Jin D,Nan H,et al.Ultrastable lithium-ion batteries prepared by introducing γ-LiAlO2 in a gel polymer electrolyte at 50℃ working temperature[J].ACS Applied Energy Materials,2021,4(4):3633-3643.
[32] Gou J,Liu W,Tang A,et al.A phosphorylated nanocellulose/hydroxypropyl methylcellulose composite matrix:a biodegradable,flame-retardant and self-standing gel polymer electrolyte towards eco-friendly and high safety lithium ion batteries[J].European Polymer Journal,2021,158:110703.
[33] Gao G,Wang J,Zhang X,et al.An ionic liquid enhanced gel polymer electrolyte for high performance lithium-metal batteries based on sulfurized polyacrylonitrile cathode[J].Composites Communications,2022,31:101100.
[34] Gou J,Liu W,Tang A.To improve the interfacial compatibility of cellulose-based gel polymer electrolytes:a cellulose/PEGDA double network-based gel membrane designed for lithium ion batteries[J].Applied Surface Science,2021,568:150963.
[35] Cheng H,Yan C,Orenstein R,et al.Polyacrylonitrile nanofiber-reinforced flexible single-ion conducting polymer electrolyte for high-performance,room-temperature all-solid-state Li-metal batteries[J].Advanced Fiber Materials,2022,4:532-546.
基金资助
国家自然科学基金面上项目(51472166)
PDF
