Electric-Field-Directed Parallel Alignment Architecting 3D Lithium-Ion Pathways within Solid Composite Electrolyte

Liu, Xueqing; Peng, Sha; Gao, Shuyu; Cao, Yuan‐Cheng; You, Qingliang; Zhou, Liyong; Jin, Yongcheng; Liu, Zhihong; Liu, Jiyan

doi:10.1021/acsami.8b01631

Cited by 65 publications

(50 citation statements)

References 37 publications

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“…Later,t he same group reported that HSSE with aligned LLTO nanowires exhibits one order of magnitude higheri onic conductivity than that with randomly aligned nanowires as displayed in Figure 4a and b. [38] Such 3D HSSE possesses an ionic conductivity of 2.4 10 À6 Scm À1 at room temperature without lithium salts, which is notably higher than random structure( 8.0 10 À7 Scm À1 ). Yang and co-workers designedv ertically aligned and inter-con-nectedL ATPn anowires via an ice-templating-based method, which have been encapsulated into PEO matrix to fabricate PEO-LATP HSSE.…”

Section: Composite Polymer-inorganic Hssesmentioning

confidence: 92%

“…Recently,3 Dc onnected necklace-likeL ATPw ith poly(ethylene glycol) diacrylate (PEGDA) and poly(dimethylsilone) (PDMS)h as been constructed by applying externalalternating-current electric field. [38] Such 3D HSSE possesses an ionic conductivity of 2.4 10 À6 Scm À1 at room temperature without lithium salts, which is notably higher than random structure( 8.0 10 À7 Scm À1 ). As shown in Figure 4d,anovel hydrogel derived pre-percolated 3D LLTO framework was designed and fully embeddedi nP EO matrix as HSSE.…”

Section: Composite Polymer-inorganic Hssesmentioning

confidence: 93%

See 1 more Smart Citation

Recent Progress of Hybrid Solid‐State Electrolytes for Lithium Batteries

Liu

et al. 2018

Chemistry A European J

136

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Conventional liquid electrolytes for lithium batteries usually suffer from irreversible decomposition and safety concerns. Solid state electrolytes (SSEs) have been considered as the key for advanced lithium batteries with improved energy density and safety, whereas challenges remain for polymer and inorganic SSEs. Recently, hybrid solid-state electrolytes (HSSEs) that integrate the merits of different electrolyte systems have been under intensive study. Herein, we summarize the recent progress of HSSEs with different compositions and structures. The design principle of each type of HSSEs are discussed, as well as their ionic conducting mechanism, electrochemical performance and effects of compositional/structural control. Finally, challenges and perspectives are provided for the future development of HSSEs and solid-state lithium batteries.

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Section: Composite Polymer-inorganic Hssesmentioning

confidence: 92%

Section: Composite Polymer-inorganic Hssesmentioning

confidence: 93%

Recent Progress of Hybrid Solid‐State Electrolytes for Lithium Batteries

Liu

et al. 2018

Chemistry A European J

136

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“…[103] The ionic conductivity (0.52 10 À4 Scm À1 )o ft he vertically aligned structure is 3.6 times that of the composite electrolyte with randomly dispersed LATP NPs. [104] They found that the roomtemperature ionic conductivity of these 3D channels was three times highert han that of the randomo ne. [104] They found that the roomtemperature ionic conductivity of these 3D channels was three times highert han that of the randomo ne.…”

Section: Composite Solid Electrolytementioning

confidence: 99%

“…Liu et al employed LATP@PEGDA@PDMS (x = 0.3 in LATP) assembled into 3D connected networks by applying an externala lternating current (AC) electric field. [104] They found that the roomtemperature ionic conductivity of these 3D channels was three times highert han that of the randomo ne. Lei et al synthesized LATP (x = 0.3) from as olutionm ethod and then prepared composite electrolyte materials (CEM) with LATP and poly(vinylidene fluoride) (PVDF) in differentr atios.…”

Section: Composite Solid Electrolytementioning

confidence: 99%

Synthesis and Properties of NaSICON‐type LATP and LAGP Solid Electrolytes

2019

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Inorganic solid electrolytes, in comparison with their liquid counterparts, have more potential in varioust ypes of batteries due to their dual roles of ion transportation and separation. For all-solid-state batteries, solide lectrolytes bring several advantages, [1][2][3][4][5][6] such as enhanced safety,i ncreased energy density,s olid device integration, and packaging;t hese expand the operation temperature range and potentially improve cycling stabilitya nd lifetime. Moreover,i norganic solid electrolytes are also beneficial for lithium-ion batteries and lithium-air batteries, in which they functiona se ither surface modification layers or lithium-ion conductors. [7,8] In principle, ideal solid electrolytes are expected to have several features: [9][10][11][12][13][14] 1) fast ion dynamics and negligible electronic conductivity (minimum ionic conductivity of 10 À4 Scm À1 at room temperature for practical consideration);2 )a wide electrochemical potential window for battery cycling;3 )ane xceptional mechanical strength to suppress lithium dendrite growth;4 )excellent thermal stability during the cycling processes;and 5) asimple and low cost synthetic process for large-scale applications.Generally,i norganic lithium superionic conductors are divided into three categories:o xides, sulfides, and phosphates. Suc-cessfule xamples in oxidesi nclude garnet oxides, [15,16] perovskite-type oxides, [17,18] and antiperovskite oxides. [19][20][21] Sulfide solid electrolytes include Li 2 SÀP 2 S 5 , [22,23] Li 3 PS 4 , [24][25][26] Li 7 P 3 S 11 , [27,28] Li 7 PS 6 ,a nd Li 6 PS 5 X( X = Cl, Br). [29][30][31] Popular phosphate solid electrolytes include sodium superionic conductor (NaSICON)structured lithium-ion conductors, [32][33][34][35][36] such as LiTi 2 (PO 4 ) 3 (LTP), Li 1 + x Al x Ti 2Àx (PO 4 ) 3 (LATP), and Li 1 + x Al x Ge 2Àx (PO 4 ) 3 (LAGP). Many exciting discoveries of these materials have been summarized in important review papers. [2,6,[37][38][39][40] NaSICON-type solid electrolytes, such as LATP and LAGP, have marked advantages compared with sulfides and oxides: they display chemicals tabilityi na ir and/or water,a re low cost and low toxicity,a nd have great electrochemical stability with the added benefito fe asy preparation. [2,36,38] They also exhibit attractive ionic conductivities of 10 À4 -10 À3 Scm À1 at room temperature. Such features have recently caused renewed interest in these NaSICON-structured materials and much effort has been devoted to the investigation of this type of solid electrolyte, especiallyL ATPa nd LAGP.T his manuscript reviewsr ecent progress in LATP and LAGP solid electrolytes, with as pecific focus on synthetic approaches and their effects on the crystal structures, conductive properties, and applications. Herein, general synthetic methods for LATP and LAGP solid electrolytes are first introduced, followed by ac omparison of the crystal structures, phase purities, and ionic conductivities that result from different approaches. Later,t he applications of LATP and LAGP in ful...

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“…Moreover, design of new nanofillers that show unique interactions with ions is another viable approach to realizing fast ion conduction. To that end, numerous ion‐conductive inorganic nanofillers, such as Li 6.75 La 3 Zr 1.75 Ta 0.25 O 12 , Li 0.3 La 0.557 TiO 3 , and Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 , have been investigated, which showed the capability of more effectively building fast pathways for ion‐conduction owing to their intrinsic ability of migrating Li + . Further, in addition to particle‐based nanofillers, there were emerged considerable studies on 1D ion‐conductive nanofillers that helped build more continuous and efficient pathways for rapidly transporting Li + depending on the polymer–filler interfaces or the nanofillers themselves.…”

Section: Introductionmentioning

confidence: 99%

Core–Shell Hybrid Nanowires with Protein Enabling Fast Ion Conduction for High‐Performance Composite Polymer Electrolytes

Wang

Fan

et al. 2018

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Incorporating nanofillers is one of the promising approaches for simultaneously boosting the ionic conductivity and mechanical properties of solid polymer electrolytes (SPEs). However, effectively creating faster ion‐conduction pathways via nanofillers still remains a big challenge. Herein, core–shell protein–ceramic nanowires for more efficiently building fast ion‐conduction networks in SPEs are reported. The core–shell protein–ceramic nanowires are fabricated via in situ growth of protein coating on the electrospun TiO2 nanowires in a subtly controlled protein‐denaturation process. It is demonstrated that the core–shell protein@TiO2 nanowires effectively facilitate ion‐conduction. As a result, the ionic conductivity, mechanical properties, electrochemical stability, and even Li+ transference number of the SPEs with core–shell protein@TiO2 nanowires are significantly enhanced. The contributions from the 1D morphology of the protein@TiO2 nanowires, and more importantly, the favorable protein structure for further promoting ion‐conduction at the polymer–filler interfaces are analyzed. It is believed that the protein plays a pivotal role in dissociating lithium salts, which benefits from the strong interactions between protein and ions, making the protein serve as a unique “natural channel” for rapidly conducting Li+. This study initiates an effective method of promoting ionic conductivity and constructing faster ion‐conduction networks in SPEs via combining bio‐ and nanotechnology.

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Electric-Field-Directed Parallel Alignment Architecting 3D Lithium-Ion Pathways within Solid Composite Electrolyte

Cited by 65 publications

References 37 publications

Recent Progress of Hybrid Solid‐State Electrolytes for Lithium Batteries

Recent Progress of Hybrid Solid‐State Electrolytes for Lithium Batteries

Synthesis and Properties of NaSICON‐type LATP and LAGP Solid Electrolytes

Core–Shell Hybrid Nanowires with Protein Enabling Fast Ion Conduction for High‐Performance Composite Polymer Electrolytes

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