Research progress and application prospect of solid-state electrolytes in commercial lithium-ion power batteries

Chen, Jing; Wu, Jiawei; Xiao-dong, Wang; Zhou, Anan; Yang, Zhenglong

doi:10.1016/j.ensm.2020.11.017

Cited by 187 publications

(85 citation statements)

References 131 publications

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“…Hu's group has investigated the Li-ion transport pathways in the PEO-LLZO composite electrolyte using solid-state nuclear magnetic resonance (NMR). 160 A symmetric cell 6 Li | LLZO-PEO (LiClO 4 )| 6 Li was electrochemically cycled to determine the possible lithium-ion transport pathways. By replacing 7 Li with 6 Li during the charge/discharge process, the Li-ion pathways were tracked within PEO-LLZO composite electrolyte.…”

Section: Li-ion Transport Mechanisms In Ceramic-polymer Composite Ele...mentioning

confidence: 99%

“…Besides, SSEs could allow for the use of lithium metal as an anode that possesses extremely high theoretical specific capacity (3860 mA h g −1 ), low electrochemical potential (−3.04 V vs. standard hydrogen electrode [SHE]), and low density (0.53 g cm −3 at room temperature). [3][4][5][6] Ionic conductivity is one of the most important properties of SSEs. However, the room-temperature ionic conductivity of most SSEs has not reached the same level as conventional organic liquid electrolytes yet.…”

Section: Introductionmentioning

confidence: 99%

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Ionic conductivity and ion transport mechanisms of solid‐state lithium‐ion battery electrolytes: A review

Yang

2022

Energy Science & Engineering

209

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This review article deals with the ionic conductivity of solid-state electrolytes for lithium batteries. It has discussed the mechanisms of ion conduction in ceramics, polymers, and ceramic-polymer composite electrolytes. In ceramic electrolytes, ion transport is accomplished with mobile point defects in a crystal. Li + ions migrate mainly via the vacancy mechanism, interstitial mechanism, or interstitial-substitutional exchange mechanism. In solid polymer electrolytes, Li + ions are transported mainly via the segment motion, ion hopping (Grotthuss mechanism), or vehicle mechanism (mass diffusion). This study has also introduced various electrolyte materials including perovskite oxides, garnet oxides, sodium superionic conductors, phosphates, sulfides, halides, cross-linked polymers, block-copolymers, metal-organic frameworks, covalent organic frameworks, as well as ceramic-polymer composites. In addition, it has highlighted some strategies to improve the ionic conductivity of solid-state electrolytes, such as doping, defect engineering, microstructure tuning, and interface modification.

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Section: Li-ion Transport Mechanisms In Ceramic-polymer Composite Ele...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ionic conductivity and ion transport mechanisms of solid‐state lithium‐ion battery electrolytes: A review

Yang

2022

Energy Science & Engineering

209

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“…I dentifying an appropriate solid electrolyte is crucial for enabling the safe, energy-dense all-solid-state Li batteries [1][2][3][4][5][6] . Recently, chloride superionic conductors were raised as an additional class of promising solid electrolytes 7,8 .…”

mentioning

confidence: 99%

“…Consequently, as indicated by the bulk prices in Supplementary Table 3 (inferred from the laboratory-scale prices listed in Supplementary Table 4), the costs for most non-Licontaining chlorides needed to synthesize Li 3 MCl 6 or Li 2 M 2/3 Cl 4 are way above $1000/kg. Although the corresponding hydrates are often relatively cheap (their bulk prices and the laboratoryscale prices used for estimation are listed in Supplementary Tables 5 and 6, respectively), they cannot be used directly to synthesize any of the reported chloride solid electrolytes other than Li 3 InCl 6 8 , and dehydrating them before synthesis would likely make the total cost no lower than that of anhydrous chlorides. These expensive non-Li-containing raw materials completely offset the cost-effectiveness of LiCl ($5.88/kg).…”

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confidence: 99%

A cost-effective and humidity-tolerant chloride solid electrolyte for lithium batteries

et al. 2021

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Li-ion-conducting chloride solid electrolytes receive considerable attention due to their physicochemical characteristics such as high ionic conductivity, deformability and oxidative stability. However, the raw materials are expensive, and large-scale use of this class of inorganic superionic conductors seems unlikely. Here, a cost-effective chloride solid electrolyte, Li2ZrCl6, is reported. Its raw materials are several orders of magnitude cheaper than those for the state-of-the-art chloride solid electrolytes, but high ionic conductivity (0.81 mS cm–1 at room temperature), deformability, and compatibility with 4V-class cathodes are still simultaneously achieved in Li2ZrCl6. Moreover, Li2ZrCl6 demonstrates a humidity tolerance with no sign of moisture uptake or conductivity degradation after exposure to an atmosphere with 5% relative humidity. By combining Li2ZrCl6 with the Li-In anode and the single-crystal LiNi0.8Mn0.1Co0.1O2 cathode, we report a room-temperature all-solid-state cell with a stable specific capacity of about 150 mAh g–1 for 200 cycles at 200 mA g–1.

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“…The increasing popularity of supercapacitors can be ascribed to their high capacitance, fast charging ability, high power density, and long cycle life [8][9][10][11]. Supercapacitors can be categorized into pseudocapacitors and electrical double-layer capacitors (EDLC) according to the energy storage mechanism [12,13]. Electrical energy is stored faradaically in pseudocapacitor by reversible redox reactions that happen on the surface of electrode materials [14].…”

Section: Introductionmentioning

confidence: 99%

A quasi-solid asymmetric supercapacitor based on MnO2-coated and N-doped pinecone porous carbon

Wang²,

Zhong

et al. 2021

J Mater Sci: Mater Electron

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Porous carbon is considered as one of the most promising electrode materials for supercapacitors. In this work, we report a simple two-step preparation of porous carbon materials based on MnO 2 -coated and N-doped pinecone, which was synthesized by carbonization and hydrothermal process. After electrochemical analysis, the prepared 3-N-PC@MnO 2 electrode exhibited optimal electrochemical performance. At a current density of 1 A/g, the specific capacitance of 3-N-PC@MnO 2 was as high as 167.8 F/g in a voltage window of 0-1 V. After being assembled into an asymmetric supercapacitor with the PVA/Na 2 SO 4 quasi-solid electrolyte under the current density of 1 A/g, the energy density could reach 20.42 Wh/kg, the power density could achieve 799.9 W/kg, and its capacitance remained 84.5% after 3000 cycles, showing remarkable electrochemical performance.

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Research progress and application prospect of solid-state electrolytes in commercial lithium-ion power batteries

Cited by 187 publications

References 131 publications

Ionic conductivity and ion transport mechanisms of solid‐state lithium‐ion battery electrolytes: A review

Ionic conductivity and ion transport mechanisms of solid‐state lithium‐ion battery electrolytes: A review

A cost-effective and humidity-tolerant chloride solid electrolyte for lithium batteries

A quasi-solid asymmetric supercapacitor based on MnO2-coated and N-doped pinecone porous carbon

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