Cycleability of sulfurized polyacrylonitrile cathode in carbonate electrolyte containing lithium metasilicate

Wu, Borong; Chen, Feibiao; Mu, Linjing; Liao, Weilin; Wu, Feng

doi:10.1016/j.jpowsour.2014.12.031

Cited by 16 publications

(5 citation statements)

References 18 publications

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“…According to the above description, the rate performance and cycle stability of C/LFMP are significantly improved by Li 2 SiO 3 coating. The possible reasons may be as follows: (1) Li 2 SiO 3 provide three‐dimensional grid channels, which is conducive to the diffusion of lithium ions; [31,46] (2) the appropriate amount of Li 2 SiO 3 coating reduces the contact between LFMP and electrolyte, effectively inhibiting the corrosion of LFMP by the small amount of HF in the electrolyte [47,48] . Compared with previously reported LiFe 0.5 Mn 0.5 PO 4 cathodes, [24,49–55] the C/LFMP‐1LSO shows remarkable advantages in terms of number of cycles with a capacity retention rate of not less than 95 % after 1C cycles (Figure 7c) and specific capacity of discharge at 5C (Figure 7d).…”

Section: Resultsmentioning

confidence: 99%

Li₂SiO₃ Modification of C/LiFe_0.5Mn_0.5PO₄ for High Performance Lithium‐Ion Batteries

et al. 2022

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The carbon‐coated LiFe0.5Mn0.5PO4 (C/LFMP) and carbon‐coated LiFe0.5Mn0.5PO4@Li2SiO3 (C/LFMP‐LSO) could be successfully prepared by high temperature solid‐state reaction. Even though the crystal structure and morphology of C/LiFe0.5Mn0.5PO4 was not changed by Li2SiO3 coating, Li2SiO3 modification was able to facilitate the diffusion of lithium ions, resulting in an excellent rate performance and cyclic stability of C/LFMP‐1LSO (1 wt %). The reversible discharge specific capacities of C/LFMP‐1LSO are 157.6 mAh g−1 and 106.3 mAh g−1 at 0.1C and 10C, respectively. Meanwhile, the C/LFMP‐1LSO was cycled for 500 times at 5C with a capacity retention rate of 85.3 %. Furthermore, at a low temperature of 6 °C and 0.2C, the C/LFMP‐1LSO displayed good low temperature performance with a discharge specific capacity of 140.6 mAh g−1. Li2SiO3 coating was considered an effective way to boost the overall electrochemical performance of C/LFMP.

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Section: Resultsmentioning

confidence: 99%

Li₂SiO₃ Modification of C/LiFe_0.5Mn_0.5PO₄ for High Performance Lithium‐Ion Batteries

et al. 2022

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“…The voltage curves exhibited only one plateau (as opposed to two) for either lithiation or delithiation (Figure S3). The “one-plateau” feature is a signature of the polysulfide-free redox mechanism. − The S-PAN electrode exhibited respectable rate performance and cycle stability, showing a specific capacity of 1150.8 mAh g –1 -S at a current rate of 1600 mA g –1 -S and retained 88.5% capacity after 100 cycles (Figure S3c).…”

Section: Results and Discussionmentioning

confidence: 99%

Engineering Rice Husk into a High-Performance Electrode Material through an Ecofriendly Process and Assessing Its Application for Lithium-Ion Sulfur Batteries

Huang

Tung

Huynh

et al. 2019

ACS Sustainable Chem. Eng.

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High-capacity and cycle-stable SiO x /C composite anodes for Li-ion batteries (LIBs) were synthesized from rice husk (RH) using an ecofriendly, one-step pyrolysis process that takes full advantage of both the silica and organic components of RH. The process–property–performance relationship for this process was investigated. Pyrolysis of RH at a sufficiently high temperature (1000 °C) results in a C scaffold with a low surface area, high electronic conductivity, and embedded SiO x nanoparticles that are highly active toward lithiation, enabling high rate capability along with outstanding cycle stability for LIB applications. A SiO x /C anode delivering a specific capacity of 654 mAh g–1 and retaining 88% capacity (99.8% CE) after 1000 cycles was demonstrated. Higher capacities, up to 920 mAh g–1, can be achieved by adding a Si-containing polymer coating on RH prior to pyrolysis. The SiO x /C anodes demonstrated considerable promise for Li metal-free Li-ion sulfur batteries.

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“…The separator might seem to play an unconsidered part in the Li-SPAN system just for Li + shuttling because of the absence of LiPSs, so there were few studies about the separator's modifications to fit the SPAN cathode. Mu et al [110] constructed a lithium metasilicate covering layer between the cathode and separator to avoid the corrosion of the cathode by HF or PF5 produced from Li salts so as to obtain cathodic stability. Fu's group [111] took battery safety into consideration and designed a gel polymer membrane (GPM) cooperating with SPAN cathode and carbonate electrolyte to satisfy the high-temperature performance at 60 • C (Figure 7e).…”

Section: Regulations Of Other Components Of Batteriesmentioning

confidence: 99%

Progress and Prospect of Practical Lithium-Sulfur Batteries Based on Solid-Phase Conversion

Hai

Guo

et al. 2022

Batteries

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Lithium–sulfur (Li–S) batteries hold great promise in the field of power and energy storage due to their high theoretical capacity and energy density. However, the “shuttle effect” that originates from the dissolution of intermediate lithium polysulfides (LiPSs) during the charging and discharging process is prone to causing continuous irreversible capacity loss, which restricts the practical development. Beyond the traditional Li–S batteries based on the dissolution-diffusion mechanism, novel Li–S batteries based on solid-phase conversion exhibit superior cycling stability owing to the absolute prevention of polysulfides shuttling. Radically eliminating the formation of polysulfides in cathodes or cutting off their diffusion in electrolytes are the two main ways to achieve solid-phase conversion. Generally, direct transformation of sulfur to final Li2S without polysulfides participation tends to occur in short-chain sulfur polymers or special molecular forms of sulfur substances, while specific regulations of liquid electrolytes with solvating structure or solid-state electrolytes can effectively suppressing the polysulfides dissolution. In this review, we systematically organized and summarized the structures and approaches to achieve solid-phase conversion, introduce their preparation methods, discuss their advantages and disadvantages, and analyze the factors and effects of different structures on battery performances. Finally, the problems demanding a prompt solution for the practical development of solid-phase conversion-based Li–S batteries, as well as their future development direction, are suggested.

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Cycleability of sulfurized polyacrylonitrile cathode in carbonate electrolyte containing lithium metasilicate

Cited by 16 publications

References 18 publications

Li₂SiO₃ Modification of C/LiFe_0.5Mn_0.5PO₄ for High Performance Lithium‐Ion Batteries

Li₂SiO₃ Modification of C/LiFe_0.5Mn_0.5PO₄ for High Performance Lithium‐Ion Batteries

Engineering Rice Husk into a High-Performance Electrode Material through an Ecofriendly Process and Assessing Its Application for Lithium-Ion Sulfur Batteries

Progress and Prospect of Practical Lithium-Sulfur Batteries Based on Solid-Phase Conversion

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Cycleability of sulfurized polyacrylonitrile cathode in carbonate electrolyte containing lithium metasilicate

Cited by 16 publications

References 18 publications

Li2SiO3 Modification of C/LiFe0.5Mn0.5PO4 for High Performance Lithium‐Ion Batteries

Li2SiO3 Modification of C/LiFe0.5Mn0.5PO4 for High Performance Lithium‐Ion Batteries

Engineering Rice Husk into a High-Performance Electrode Material through an Ecofriendly Process and Assessing Its Application for Lithium-Ion Sulfur Batteries

Progress and Prospect of Practical Lithium-Sulfur Batteries Based on Solid-Phase Conversion

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Li₂SiO₃ Modification of C/LiFe_0.5Mn_0.5PO₄ for High Performance Lithium‐Ion Batteries

Li₂SiO₃ Modification of C/LiFe_0.5Mn_0.5PO₄ for High Performance Lithium‐Ion Batteries