Synthesis and interface stability of polystyrene-poly(ethylene glycol)-polystyrene triblock copolymer as solid-state electrolyte for lithium-metal batteries

Zhang, Bohao; Zhang, Yuhang; Zhang, Ning; Li, Jun; Cong, Lina; Liu, Jia; Sun, Liqun; Mauger, A.; Julien, C.; Xie, Haiming; Pan, Xiumei

doi:10.1016/j.jpowsour.2019.04.033

Cited by 62 publications

(34 citation statements)

References 79 publications

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“…We can see the severe deformation of the charge/discharge curves in the PEO-LiTFSI electrolyte-based cell (Fig. 6e), also reported in other studies [90,91]. The cell displayed two typical platforms at~3.5 V in the charge state and at~3.4 V in the discharge state at a low current density of 0.1 C; however, the charge/discharge curves began to change or deform at 0.2 C, and the deformation was much more severe at 0.3 and 0.5 C (Fig.…”

Section: All-solid-state LI Metal Battery Performancesupporting

confidence: 87%

Flexible, high-voltage, ion-conducting composite membranes with 3D aramid nanofiber frameworks for stable all-solid-state lithium metal batteries

Liu

Lyu

et al. 2020

Sci. China Mater.

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The practical application of solid polymer electrolytes in high-energy Li metal batteries is hindered by Li dendrites, electrochemical instability and insufficient ion conductance. To address these issues, flexible composite polymer electrolyte (CPE) membranes with three dimensional (3D) aramid nanofiber (ANF) frameworks are facilely fabricated by filling polyethylene oxide (PEO)-lithium bis(trifluoromethylsulphonyl)imide (LiTFSI) electrolyte into 3D ANF scaffolds. Because of the unique composite structure design and the continuous ion conduction at the 3D ANF framework/PEO-LiTFSI interfaces, the CPE membranes show higher mechanical strength (10.0 MPa), thermostability, electrochemical stability (4.6 V at 60°C) and ionic conductivity than the pristine PEO-LiTFSI electrolyte. Thus, the CPEs display greatly improved interfacial stability against Li dendrites (≥1000 h at 30°C under 0.10 mA cm −2), compared with the pristine electrolyte (short circuit in 13 h). The CPE-based all-solid-state LiFePO 4 /Li cells also exhibit superior cycling performance (e.g., 130 mA h g −1 with 93% retention after 100 cycles at 0.4 C) than the ANF-free cells (e.g., 82 mA h g −1 with 66% retention). This work offers a simple and effective way to achieve high-performance composite electrolyte membranes with 3D nanofiller framework for promising solid-state Li metal battery applications.

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Section: All-solid-state LI Metal Battery Performancesupporting

confidence: 87%

Flexible, high-voltage, ion-conducting composite membranes with 3D aramid nanofiber frameworks for stable all-solid-state lithium metal batteries

Liu

Lyu

et al. 2020

Sci. China Mater.

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“…Moreover, the capacity retained at C/2 after 300 cycles was a high 80 mAh g −1 . Recently, a polystyrene-poly(ethylene glycol)-polystyrene triblock copolymer with LiTFSI (EG: Li molar ratio of 20:1) was fabricated [263]. This solid membrane exhibited an ionic conductivity of 1.1 × 10 −3 S cm −1 at 70 °C, a transference number of 0.17, a high degree of flexibility, good mechanical strength and thermal stability, good compatibility with lithium, and an electrochemical window that extended up to 4.5 V. At 70 °C, the Li//LiFePO 4 cell with this electrolyte delivered capacities of 158 mAh g −1 at 0.2C and 127 mAh g −1 at 1C.…”

Section: Polymer Electrolytesmentioning

confidence: 99%

Building Better Batteries in the Solid State: A Review

et al. 2019

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Most of the current commercialized lithium batteries employ liquid electrolytes, despite their vulnerability to battery fire hazards, because they avoid the formation of dendrites on the anode side, which is commonly encountered in solid-state batteries. In a review two years ago, we focused on the challenges and issues facing lithium metal for solid-state rechargeable batteries, pointed to the progress made in addressing this drawback, and concluded that a situation could be envisioned where solid-state batteries would again win over liquid batteries for different applications in the near future. However, an additional drawback of solid-state batteries is the lower ionic conductivity of the electrolyte. Therefore, extensive research efforts have been invested in the last few years to overcome this problem, the reward of which has been significant progress. It is the purpose of this review to report these recent works and the state of the art on solid electrolytes. In addition to solid electrolytes stricto sensu, there are other electrolytes that are mainly solids, but with some added liquid. In some cases, the amount of liquid added is only on the microliter scale; the addition of liquid is aimed at only improving the contact between a solid-state electrolyte and an electrode, for instance. In some other cases, the amount of liquid is larger, as in the case of gel polymers. It is also an acceptable solution if the amount of liquid is small enough to maintain the safety of the cell; such cases are also considered in this review. Different chemistries are examined, including not only Li-air, Li–O2, and Li–S, but also sodium-ion batteries, which are also subject to intensive research. The challenges toward commercialization are also considered.

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“…The research on suitable electrolytes is not a simple task, and hampers the overall development of the battery [ 134 , 135 , 136 , 137 , 138 ]. As depicted in Figure 5 , electrolytes based on magnesium salts, for example perchlorates and tetrafluroborates, and polar aprotic solvents, like carbonates and nitriles, form a passivating layer [ 103 ].…”

Section: Magnesium Metal As Anodementioning

confidence: 99%

An Overview on Anodes for Magnesium Batteries: Challenges towards a Promising Storage Solution for Renewables

et al. 2021

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Magnesium-based batteries represent one of the successfully emerging electrochemical energy storage chemistries, mainly due to the high theoretical volumetric capacity of metallic magnesium (i.e., 3833 mAh cm−3 vs. 2046 mAh cm−3 for lithium), its low reduction potential (−2.37 V vs. SHE), abundance in the Earth’s crust (104 times higher than that of lithium) and dendrite-free behaviour when used as an anode during cycling. However, Mg deposition and dissolution processes in polar organic electrolytes lead to the formation of a passivation film bearing an insulating effect towards Mg2+ ions. Several strategies to overcome this drawback have been recently proposed, keeping as a main goal that of reducing the formation of such passivation layers and improving the magnesium-related kinetics. This manuscript offers a literature analysis on this topic, starting with a rapid overview on magnesium batteries as a feasible strategy for storing electricity coming from renewables, and then addressing the most relevant outcomes in the field of anodic materials (i.e., metallic magnesium, bismuth-, titanium- and tin-based electrodes, biphasic alloys, nanostructured metal oxides, boron clusters, graphene-based electrodes, etc.).

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Synthesis and interface stability of polystyrene-poly(ethylene glycol)-polystyrene triblock copolymer as solid-state electrolyte for lithium-metal batteries

Cited by 62 publications

References 79 publications

Flexible, high-voltage, ion-conducting composite membranes with 3D aramid nanofiber frameworks for stable all-solid-state lithium metal batteries

Flexible, high-voltage, ion-conducting composite membranes with 3D aramid nanofiber frameworks for stable all-solid-state lithium metal batteries

Building Better Batteries in the Solid State: A Review

An Overview on Anodes for Magnesium Batteries: Challenges towards a Promising Storage Solution for Renewables

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