Composition Modulation and Structure Design of Inorganic‐in‐Polymer Composite Solid Electrolytes for Advanced Lithium Batteries

Liu, Yuan; Xu, Bingqing; Zhang, Wenyu; Li, Liangliang; Lin, Yuanhua; Chen, Nan

doi:10.1002/smll.201902813

Cited by 95 publications

(64 citation statements)

References 133 publications

(158 reference statements)

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“…Furthermore, the fundamentals of ASSBs were reviewed by several authors [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 ]. The number of reviews on various aspects of electrolytes, cathodes, mechanical properties, and interface engineering has grown exponentially since 2018 [ 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 ...…”

Section: Introductionmentioning

confidence: 99%

Sulfide and Oxide Inorganic Solid Electrolytes for All-Solid-State Li Batteries: A Review

et al. 2020

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Energy storage materials are finding increasing applications in our daily lives, for devices such as mobile phones and electric vehicles. Current commercial batteries use flammable liquid electrolytes, which are unsafe, toxic, and environmentally unfriendly with low chemical stability. Recently, solid electrolytes have been extensively studied as alternative electrolytes to address these shortcomings. Herein, we report the early history, synthesis and characterization, mechanical properties, and Li+ ion transport mechanisms of inorganic sulfide and oxide electrolytes. Furthermore, we highlight the importance of the fabrication technology and experimental conditions, such as the effects of pressure and operating parameters, on the electrochemical performance of all-solid-state Li batteries. In particular, we emphasize promising electrolyte systems based on sulfides and argyrodites, such as LiPS5Cl and β-Li3PS4, oxide electrolytes, bare and doped Li7La3Zr2O12 garnet, NASICON-type structures, and perovskite electrolyte materials. Moreover, we discuss the present and future challenges that all-solid-state batteries face for large-scale industrial applications.

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Section: Introductionmentioning

confidence: 99%

Sulfide and Oxide Inorganic Solid Electrolytes for All-Solid-State Li Batteries: A Review

et al. 2020

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“…Many approaches such as the use of polymer blends as promising host matrices [13][14][15][16][17][18][19], inclusion of inorganic and organic nanofillers for improving thermal, mechanical, and ion transportation properties [20][21][22][23], the addition of various ionic liquid and/or dipolar liquid plasticizers for increasing degree of salt dissociation and reducing the crystallinity of polymer matrix [24][25][26][27], and consideration of different preparation methods suitable from the industrial point of view [28][29][30][31][32][33]. Furthermore, some combinations of these different approaches have also been taken into consideration for exploiting different kinds of SPE materials with a variety of appealing properties [17,20,26,34].…”

Section: Introductionmentioning

confidence: 99%

Dielectric polarization and relaxation processes of the lithium-ion conducting PEO/PVDF blend matrix-based electrolytes: effect of TiO2 nanofiller

Dhatarwal

Sengwa

2020

SN Appl. Sci.

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The effect of TiO 2 nanofiller concentration on the dielectric polarization and relaxation processes of (75PEO/25PVDF)/25 wt% LiClO 4-x wt% TiO 2 (x = 0, 2, 5, 10, 15, and 20) compositions based nanocomposite solid polymer electrolyte (NSPE) films has been investigated by employing the dielectric relaxation spectroscopy. The SEM micrographs demonstrate that the dispersion of TiO 2 nanoparticles enormously alters the spherulitic morphology with the development of some cracks, pores, and wrinkles of these solution-cast prepared NSPE films. The X-ray diffraction study confirms that the heterostructures of these NSPE materials are semicrystalline and their degree of crystallinity increases irregularly with the increase of TiO 2 concentration, however the crystallinity of host polymer blend matrix of these electrolytes decreases. The complex dielectric permittivity spectra of these NSPE materials in the frequency range from 20 Hz to 1 MHz at 27 °C reveal that there is a dominant contribution of electrode polarization and interfacial polarization at lower frequencies, whereas the high frequency permittivity values attribute to dipolar and ionic polarizations. Four types of relaxation processes have been probed by the 'master curve representation' of the dielectric and electrical spectra of these solid ion-dipole complexes. It is observed that the addition of TiO 2 nanoparticles up to 10 wt% in these electrolytes influences the dielectric properties anomalously, but a huge decrease in the dielectric polarization and increase in the relaxation times are noted resulting in a significant decrease in the ionic conductivity of the film at 20 wt% TiO 2 concentration. The dependence of dc ionic conductivity of these lithium-ion conducting NSPE materials on the chain segmental relaxation time and also the degree of crystallinity has been explored. The results of these NSPE materials have also been compared with the TiO 2 nanoparticles loaded different polymer matrices and salts based electrolytes and discussed appropriately. These lithium-ion based electrolyte films are accredited for the solid-state ion-conducting energy storing devices from their electrochemical parameters characterized by LSV, CV, and CA techniques.

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“…[17] Such inorganic fillers usually enable to plasticize polymers, reducing polymer crystallinity and enhancing the molecular chain motion of the polymers. [18] Particularly, the fillers with abundant chemical functional groups (such as OH) can facilely combine with the ionic species via Lewis acid-base interactions, acquiring highly dissociated lithium salts, thereby greatly promoting the Li + transportation at inorganic filler/polymer matrix interfaces. [19] Therefore, high surface area fillers with abundant functional groups such as graphene oxide, vermiculite sheets, and MXene-Ti 3 C 2 are beneficial to the formation of highly conductive polymer electrolytes (≈10 −4 S cm −1 ).…”

mentioning

confidence: 99%

MXene‐Based Mesoporous Nanosheets Toward Superior Lithium Ion Conductors

Shi

Zhu

et al. 2020

Advanced Energy Materials

103

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Although solid polymer electrolytes have some intrinsic advantages in synthesis and film processing compared with inorganic solid electrolytes, low ionic conductivities and mechanical moduli hamper their practical applications in lithium‐based batteries. Here, an efficient strategy is developed to produce a unique solid polymer electrolyte containing MXene‐based mesoporous silica nanosheets with a sandwich structure, which are fabricated via controllable hydrolysis of tetraethyl orthosilicate around the surface of MXene‐Ti3C2 under the direction of cationic surfactants. Such unique nanosheets not only exhibit individual, thin, and insulated features, but also possess abundant functional groups in mesopores and on the surface, which are favorable for the formation of Lewis acid–base interactions with anions in polymer electrolytes such as poly(propylene oxide) elastomer, enabling the fast Li+ transportation at the mesoporous nanosheets/polymer interfaces. As a consequence, a solid polymer electrolyte with high ionic conductivity of 4.6 × 10−4 S cm−1, high Young's modulus of 10.5 MPa, and long‐term electrochemical stability is achieved.

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Composition Modulation and Structure Design of Inorganic‐in‐Polymer Composite Solid Electrolytes for Advanced Lithium Batteries

Cited by 95 publications

References 133 publications

Sulfide and Oxide Inorganic Solid Electrolytes for All-Solid-State Li Batteries: A Review

Sulfide and Oxide Inorganic Solid Electrolytes for All-Solid-State Li Batteries: A Review

Dielectric polarization and relaxation processes of the lithium-ion conducting PEO/PVDF blend matrix-based electrolytes: effect of TiO2 nanofiller

MXene‐Based Mesoporous Nanosheets Toward Superior Lithium Ion Conductors

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