High-performance lithium metal batteries benefit from the construction of composite polymer electrolytes(CPEs)which are synthesized by incorporating inorganic fillers into polymer matrices[1].However,the random distri...High-performance lithium metal batteries benefit from the construction of composite polymer electrolytes(CPEs)which are synthesized by incorporating inorganic fillers into polymer matrices[1].However,the random distribution of added fillers within the polymer matrix can lead to tortuous ion pathways and longer transmission distances(Fig.1).As a result,the ion transport capability of CPEs may decrease,while interface contact may deteriorate.Therefore,the organized arrangement of fillers emerges as a crucial consideration in constructing electrolyte membranes.One highly effective approach is the adoption of a vertically aligned filler configuration,where ceramic fillers are constructed to be perpendicular to the electrolyte membrane.If so,the filler/electrolyte interface impedance can be significantly reduced,while continuous ion transport channels along the specified direction are formed,thus significantly enhancing the ion conduction(Fig.1(a))[1].展开更多
Solid polymer electrolytes(SPEs)possess several merits including no leakage,ease in process,and suppressing lithium dendrites growth.These features are beneficial for improving the cycle life and safety performance of...Solid polymer electrolytes(SPEs)possess several merits including no leakage,ease in process,and suppressing lithium dendrites growth.These features are beneficial for improving the cycle life and safety performance of rechargeable lithium metal batteries(LMBs),as compared to conventional non-aqueous liquid electrolytes.Particularly,the superior elasticity of polymeric material enables the employment of SPEs in building ultra-thin and flexible batteries,which could further expand the application scenarios of high-energy rechargeable LMBs.In this perspective,recent progresses on ion transport mechanism of SPEs and structural designs of electrolyte components(e.g.conductive lithium salts,polymer matrices)are scrutinized.In addition,key achievements in the field of single lithium-ion conductive SPEs are also outlined,aiming to provide the status quo in those SPEs with high selectivity in cationic transport.Finally,possible strategies for improving the performance of SPEs and their rechargeable LMBs are also discussed.展开更多
The combination of all-inorganic perovskites(PVSKs)and polymers allows for free-standing flexible optoelectronic devices.However,solubility difference of the PVSK precursors and concerns over the compatibility between...The combination of all-inorganic perovskites(PVSKs)and polymers allows for free-standing flexible optoelectronic devices.However,solubility difference of the PVSK precursors and concerns over the compatibility between polymer carriers and PVSKs imply a great challenge to incorporate different kinds of PVSKs into polymer matrices by the same manufacturing process.In this work,PVSK precursors are introduced into poly(2-hydroxyethyl acrylate)(PHEA)hydrogels in sequence,in which the PVSK-gel composites are achieved with full-color emissions by simply varying the precursor species.Moreover,it is found that CsBr has a higher interaction energy with the(111)plane of CsPbBr_(3)than the(110)plane;thus,the CsPbBr_(3)crystals with a shape of truncated cube and tetragon are observed during the CsPbBr_(3)-Cs_(4)PbBr_(6)phase transition over time.The PVSK-gel composites feature excellent bendability,elasticity,and stretchable deformation(tensile strain>500%),which allows for 3D printing emissive customized stereoscopic architectures with shape-memory features.展开更多
1 Results The development of tuneable solid-state organic dye lasers is a subject of considerable interest and research activity.Compared to conventional liquid dye lasers they have the advantage of being free of solv...1 Results The development of tuneable solid-state organic dye lasers is a subject of considerable interest and research activity.Compared to conventional liquid dye lasers they have the advantage of being free of solvent handling,having small size,and being easy to operate.For high-performance solid-state dye lasers highly photo-stable dyes with low quantum yield of triplet formation and low triplet-triplet absorption cross-section in the lasing wavelength region are required.For solid state dye lasers ...展开更多
基金supported by the National Natural Science Foundation of China(No.51972293)Hangzhou Key Research Program Project(2023SZD0099)LingYan Project(2024C01090).
文摘High-performance lithium metal batteries benefit from the construction of composite polymer electrolytes(CPEs)which are synthesized by incorporating inorganic fillers into polymer matrices[1].However,the random distribution of added fillers within the polymer matrix can lead to tortuous ion pathways and longer transmission distances(Fig.1).As a result,the ion transport capability of CPEs may decrease,while interface contact may deteriorate.Therefore,the organized arrangement of fillers emerges as a crucial consideration in constructing electrolyte membranes.One highly effective approach is the adoption of a vertically aligned filler configuration,where ceramic fillers are constructed to be perpendicular to the electrolyte membrane.If so,the filler/electrolyte interface impedance can be significantly reduced,while continuous ion transport channels along the specified direction are formed,thus significantly enhancing the ion conduction(Fig.1(a))[1].
基金The authors gratefully acknowledge the financial support provided by the Fundamental Research Funds for Central Universities,HUST(2020kfyXJJS095).
文摘Solid polymer electrolytes(SPEs)possess several merits including no leakage,ease in process,and suppressing lithium dendrites growth.These features are beneficial for improving the cycle life and safety performance of rechargeable lithium metal batteries(LMBs),as compared to conventional non-aqueous liquid electrolytes.Particularly,the superior elasticity of polymeric material enables the employment of SPEs in building ultra-thin and flexible batteries,which could further expand the application scenarios of high-energy rechargeable LMBs.In this perspective,recent progresses on ion transport mechanism of SPEs and structural designs of electrolyte components(e.g.conductive lithium salts,polymer matrices)are scrutinized.In addition,key achievements in the field of single lithium-ion conductive SPEs are also outlined,aiming to provide the status quo in those SPEs with high selectivity in cationic transport.Finally,possible strategies for improving the performance of SPEs and their rechargeable LMBs are also discussed.
基金financially supported by the National Natural Science Foundation of China(grant 62004167)Key Research and Development Program of Shaanxi(2023GXLH091)+1 种基金Ningbo Natural Science Foundation(2022J061)Fundamental Research Funds for the Central Universities.
文摘The combination of all-inorganic perovskites(PVSKs)and polymers allows for free-standing flexible optoelectronic devices.However,solubility difference of the PVSK precursors and concerns over the compatibility between polymer carriers and PVSKs imply a great challenge to incorporate different kinds of PVSKs into polymer matrices by the same manufacturing process.In this work,PVSK precursors are introduced into poly(2-hydroxyethyl acrylate)(PHEA)hydrogels in sequence,in which the PVSK-gel composites are achieved with full-color emissions by simply varying the precursor species.Moreover,it is found that CsBr has a higher interaction energy with the(111)plane of CsPbBr_(3)than the(110)plane;thus,the CsPbBr_(3)crystals with a shape of truncated cube and tetragon are observed during the CsPbBr_(3)-Cs_(4)PbBr_(6)phase transition over time.The PVSK-gel composites feature excellent bendability,elasticity,and stretchable deformation(tensile strain>500%),which allows for 3D printing emissive customized stereoscopic architectures with shape-memory features.
文摘1 Results The development of tuneable solid-state organic dye lasers is a subject of considerable interest and research activity.Compared to conventional liquid dye lasers they have the advantage of being free of solvent handling,having small size,and being easy to operate.For high-performance solid-state dye lasers highly photo-stable dyes with low quantum yield of triplet formation and low triplet-triplet absorption cross-section in the lasing wavelength region are required.For solid state dye lasers ...
