A polymer electrolyte with a thermally induced interfacial ion-blocking function enables safety-enhanced lithium metal batteries

Zhang, Huanrui; Huang, Lang; Xu, Hantao; Zhang, Xiaohu; Zhou, C.; Gao, Chenhui; Lu, Chenglong; Li, Zhi; Jiang, Meifang; Cui, Guanglei

doi:10.1016/j.esci.2022.03.001

Cited by 81 publications

(60 citation statements)

References 23 publications

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“…To protect batteries against undesired hazardous side effects, new electrolytes are being developed, which include the use of thermally responsive polymer electrolytes, [ 63 ] the incorporation of inorganic phases, [ 64 ] or the fabrication of polymer electrolytes with thermally induced interfacial ion‐blocking functions. [ 65 ]…”

Section: Resultsmentioning

confidence: 99%

Environmental Impact Assessment of Solid Polymer Electrolytes for Solid‐State Lithium Batteries

Larrabide

Rey

Lizundia

2022

Adv Energy and Sustain Res

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Solid‐state batteries play a pivotal role in the next‐generation batteries as they satisfy the stringent safety requirements for stationary or electric vehicle applications. Notable efforts are devoted to the competitive design of solid polymer electrolytes (SPEs) acting as both the electrolyte and the separator. Although particular efforts to attain acceptable ionic conductivities and wide electrochemical stability widows are carried out, the environmental sustainability is largely neglected. To address this gap, here the cradle‐to‐gate environmental impacts of the most representative SPEs using life cycle assessment (LCA) are quantified. Raw material extraction and electrolyte fabrication are considered. Global warming potential values of 0.37–10.64 kg CO2 equiv. gelectrolyte −1 are achieved, where PEO/LiTFSI presents the lower environmental burdens. A minor role of the polymer fraction on the total impacts is observed, with a maximum CO2 footprint share of 0.61%. Following ecodesign approaches, a sensitivity analysis is performed to simulate industrial‐scale fabrication processes and explore environmentally friendlier scenarios. The electrochemical performance of SPEs is further analyzed into Li/LiFePO4 solid lithium metal battery cell configuration. Overall, these results are aimed to guide the ecologically sustainable design of SPEs and facilitate the implementation of next‐generation sustainable batteries.

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Section: Resultsmentioning

confidence: 99%

Environmental Impact Assessment of Solid Polymer Electrolytes for Solid‐State Lithium Batteries

Larrabide

Rey

Lizundia

2022

Adv Energy and Sustain Res

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“…Meanwhile, the good wettability of carbon nanotube to liquid organic electrolyte ensures sufficient triple-phase boundary for electrochemical reactions and fast transportation of lithium ions and electrons. [7][8] Furthermore, ethers such as dimethyl ether (DME) and tetraethyleneglycol dimethyl ether (TEGDME) have been commonly employed as the liquid organic electrolytes of lithium-oxygen batteries for their wide electrochemical window (> 4.0 V), good solubility to O 2 as well as low volatility. [9] Besides, the low polarity of ethers could contribute to a better dissolution of Li 2 O 2 to relieve the block on cathode in the discharging process.…”

Section: Introductionmentioning

confidence: 99%

Cellulose Acetate‐Based High‐Electrolyte‐Uptake Gel Polymer Electrolyte for Semi‐Solid‐State Lithium‐Oxygen Batteries with Long‐Cycling Stability

Guo

Liu

et al. 2022

Chemistry An Asian Journal

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Lithium‐oxygen batteries have received great research interest owing to their ultrahigh theoretical energy density and are considered as one of the promising secondary batteries. However, there are still some challenges in their practical application, like liquid organic electrolyte evaporation in the semi‐open system and instability in the high‐voltage oxidizing environment. In this work, a cellulose acetate‐based gel polymer electrolyte (CA@GPE) is proposed, whose cross‐linked microporous structure ensures the ultrahigh liquid electrolyte uptake of 2391%. The prepared CA@GPE exhibits a high lithium‐ion transference number of 0.595, a satisfying ionic conductivity of 0.47 mS cm−1 and a wide electrochemical stability window up to 5.0 V. The Li//Li symmetric cell employing CA@GPE could cycle stably over 1200 h. The lithium‐oxygen battery with CA@GPE presents a superb cycling lifetime of 370 cycles at 0.1 mA cm−2 under 0.25 mAh cm−2. This work offers a possible strategy to realize long‐cycling stability lithium‐oxygen batteries.

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“…Moreover, the growth of K dendrites can be promoted by breakable SEI film, which is able to result in internal short and safety hazards. , Furthermore, the Coulombic efficiency (CE) and lifespan of K metal batteries can be dramatically decreased by the isolated, electrochemically inactive “dead K” due to the continuous breakdown/reconstruction of SEI during cycling . So far, compared with Li metal anode, , there are far fewer fundamental studies on K metal anodes which is still in their infancy. Stabilizing the SEI via optimizing electrolyte composition, , surface engineering on K metal, or replacing K metal with a K–Na alloy have been used to restrain the K dendrite growth.…”

Section: Introductionmentioning

confidence: 99%

CoZn Nanoparticles@Hollow Carbon Tubes Enabled High-Performance Potassium Metal Batteries

Cheng

Liu

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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Potassium-metal batteries (PMBs) are attractive candidates for low-cost and large-scale energy storage systems due to the abundance of potassium. However, its application is hampered by large volume change and serious dendrite growth. Herein, a CoZn semicoherent structure nanoparticle-embedded nitrogen-doped hollow carbon tube (CoZn@HCT) electrode is prepared via coaxial electrospinning. Due to the high potassiophilic CoZn semicoherent structure nanoparticles and large potassium metal storage space, the free-standing CoZn@HCT host for K metal exhibits uniform K nucleation and stable plating/stripping (stable cycling 1000 h at 1 mA cm–2 with 1 mA h cm–2). Furthermore, enhanced electrochemical performance with good cycling stability and rate capability is achieved in (CoZn@HCT@K||PTCDA) full batteries. Our results highlight a promising strategy for dendrite-free K metal anodes and high-performance PMBs.

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A polymer electrolyte with a thermally induced interfacial ion-blocking function enables safety-enhanced lithium metal batteries

Cited by 81 publications

References 23 publications

Environmental Impact Assessment of Solid Polymer Electrolytes for Solid‐State Lithium Batteries

Environmental Impact Assessment of Solid Polymer Electrolytes for Solid‐State Lithium Batteries

Cellulose Acetate‐Based High‐Electrolyte‐Uptake Gel Polymer Electrolyte for Semi‐Solid‐State Lithium‐Oxygen Batteries with Long‐Cycling Stability

CoZn Nanoparticles@Hollow Carbon Tubes Enabled High-Performance Potassium Metal Batteries

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