LANGMUIR
·
2025
·
IF 3.9
Qingji Wang,Yilin Wang,Dan Wang,Xueying Yang,Ying Tang,Mingna Feng,Mingxia Wang,Xuemin Li,Feng Yan
Nanofiltration (NF) stands as a pivotal method for lithium resource recovery. Nonetheless, traditional NF membranes predominantly rely on size exclusion and the Donnan effect, necessitating elevated operating pressures and encountering substantial hurdles in terms of ion selectivity for lithium ions. Inspired by the host–guest recognition of crown ethers toward alkali metal ions, we prepared a crown ether-functionalized loose NF membrane (CE-LNF) via interfacial polymerization of diamino-dibenzo-14-crown-4 (DAB14C4) and trimesoyl chloride on a chloromethylated polysulfone substrate. The preparation conditions of the CE-LNF membranes were systematically optimized. Results revealed that the polyamide (PA) layer structure could be precisely tuned by changing the solvent and concentration of DAB14C4. The diffusion dialysis process with low energy consumption was applied in the Mg2+/Li+ separation experiment. Interestingly, the CE-LNF membrane achieved a unique “Li+ repulsion-Mg2+ permeation” result owing to the efficient host–guest recognition of Li+ by DAB14C4 on the PA layer. During the diffusion process, the transmembrane flux of Mg2+ (0.5 mol·m–2·h–1) surpassed that of Li+ (0.01 mol·m–2·h–1) by 50-fold, leading to a significant reduction in the Mg2+/Li+ ratio in the feed (from 19.5:1 to 5.2:1) and generating a Mg2+-enriched permeate. This work proposes a novel strategy for Mg2+/Li+ separation, where CE-LNF-based continuous diffusion dialysis serves as an energy-efficient, nonpressure-driven pretreatment for high Mg2+/Li+ ratio brines. The process not only produces high-purity Mg2+ solutions but also facilitates subsequent Li+ recovery via secondary CE-LNF diffusion or conventional extraction methods.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Kaixuan Li,Xiaole Yao,Zhicheng Li,Tongtong Gao,Weijun Zhang,Zhirong Liao,Xing Ju,Chao Xu
For battery thermal management , the phase change material (PCM) has demonstrated its advantages as a thermal buffer. In this paper, we proposed a novel thermal regulator that intelligently utilizes the volume changes to modulate heat transfer. The thermal regulator establishes a passive and negative feedback mechanism between the PCM and the cooling system, enabling a consistent and optimal operating battery temperature. This innovation negates the need for sensors or external logic devices, using a resilient valve passively adjusted by PCM volume changes. This in turn modulates coolant flow rate and battery temperature. Its thermal management performance is compared to other configurations like natural cooling, pure PCM, and composite PCM (cPCM). Extended dynamic tests are conducted at different ambient temperatures ( T amb ) for evaluation. The results indicate that batteries without thermal regulators fail to operate when T amb exceeds 30 °C. At T amb = 35 °C, the thermal regulator with cPCM exhibits repeated switching and effectively keeps the battery temperature lower than 38.13 °C. At T amb > 40 °C, both thermal regulators active to achieve faster heat dissipation. At 45 °C, the thermal regulator with cPCM successfully reduces the battery temperature to 35.02 °C. Integrating AlN in pure PCM lowers the battery module's peak temperature by 7.94 %. The thermal regulator also diminishes cyclic temperature variances, underlining its potential for enhancing battery thermal management .
✓ 已验证
产品关联
DOI
高影响因子
Nature Nanotechnology
·
2022
·Vol. 17
·期 6
·613-621
·
IF 40.523
Li Shimei,Huang Junlong,Cui Yin,Liu Shaohong,Chen Zirun,Huang Wen,Li Chuanfa,Liu Ruliang,Fu Ruowen,Wu Dingcai
The low cycling efficiency and uncontrolled dendrite growth resulting from an unstable and heterogeneous lithium–electrolyte interface have largely hindered the practical application of lithium metal batteries. In this study, a robust all-organic interfacial protective layer has been developed to achieve a highly efficient and dendrite-free lithium metal anode by the rational integration of porous polymer-based molecular brushes (poly(oligo(ethylene glycol) methyl ether methacrylate)-grafted, hypercrosslinked poly(4‐chloromethylstyrene) nanospheres, denoted as x PCMS- g -PEGMA) with single-ion-conductive lithiated Nafion. The porous x PCMS inner cores with rigid hypercrosslinked skeletons substantially increase mechanical robustness and provide adequate channels for rapid ionic conduction, while the flexible PEGMA and lithiated Nafion polymers enable the formation of a structurally stable artificial protective layer with uniform Li + diffusion and high Li + transference number. With such artificial solid electrolyte interphases, ultralong-term stable cycling at an ultrahigh current density of 10 mA cm −2 for over 9,100 h (>1 year) and unprecedented reversible lithium plating/stripping (over 2,800 h) at a large areal capacity (10 mAh cm −2 ) have been achieved for lithium metal anodes. Moreover, the protected anodes also show excellent cell stability when paired with high-loading cathodes (~4 mAh cm −2 ), demonstrating great prospects for the practical application of lithium metal batteries.
✓ 已验证
DOI
PubMed
高影响因子
Advanced Energy Materials
·
2020
·Vol. 10
·期 25
·1904026
·
IF 25.245
Wenqiang Wang,Dongya Wang,Guiyou Wang,Mengyao Zheng,Gengchao Wang
The shuttle of polysulfide and severe volume change of sulfur cathodes, are the bottlenecks in the practical application of lithium–sulfur batteries, and need to be solved through further exploration of simple and scalable strategies. Herein, an elastic and conductive coating layer is designed and synthesized, by combining water soluble conducting polymer modified carbon nanotubes (PASANTs) with crosslinked waterborne polyurethane ( c WPU). It shows high electronic conductivity and excellent resilience. As a result, a lithium–sulfur battery with c WPU/PASANTs coated cathode is able to achieve an outstanding cycle stability with a capacity of 70.8% after 500 cycles at 0.5C and an excellent rate performance (specific capacity of 1130 mAh g −1 at 0.1C and maintain 68.2% at 2C). This work embodies a systematic design concept, which shows the application prospects of large-scale production, and is expected to be further applied to other easily pulverized high-specific-capacity materials such as silicon and tin.
✓ 已验证
DOI
高影响因子
Energy Storage Materials
·
2023
·
IF 20.4
Bowen Jiang,Faqiang Li,Tianyi Hou,Yi Liu,Hang Cheng,Haonan Wang,Dinggen Li,Henghui Xu,Yunhui Huang
The development of solid polymer electrolytes (SPEs) is impeded by the severe Li-dendrites growth at the unstable SPE-Li interface. Herein, we demonstrate that the interfacial stability of poly(ethylene oxide) (PEO) electrolytes against Li metal is significantly improved by a shielding strategy, where the nanosheets of a 2D Li + conductor Li 0.46 Mn 0.77 PS 3 (LiMPS) serve as nanosized shields to armor PEO against the spears - lithium dendrites . Besides physical inhibition, LiMPS also homogenizes Li + flux owing to its 2D nature, superior Li + conductivity (2.1 × 10 −4 S cm −1 at 30 ℃) and strong adsorption of Li + . This strategy also enables PEO-LiMPS electrolytes to exhibit superior ionic conductivity of 2.6 × 10 −4 S cm −1 at 45 ℃, a nearly tenfold increase compared to bare PEO electrolytes. Furthermore, the electrochemical stability window (ESW) of PEO-LiMPS electrolytes is expanded to 4.8 V (3.8 V for pristine PEO). As a result, symmetric Li/PEO-LiMPS/Li cells deliver short circuit-free cycling over 600 h, and LiNi 0.8 Co 0.1 Mn 0.1 O 2 /PEO-LiMPS/Li batteries also present a high-capacity retention over 80% after 200 cycles at 0.2 C. In addition, LFP/PEO-LiMPS/Li pouch cell retains 93% of the initial capacity after cycling at 0.2 C for 230 cycles. This 2D Li + -conductive shielding strategy provides a unique protective mechanism for SPEs in solid-state Li metal batteries (SSLMBs).
✓ 已验证
DOI
高影响因子
Energy Storage Materials
·
2025
·
IF 20.2
Fang Fu,Jianfei Lin,Shiyuan Zhang,Ying Liu,Tianzong Ma,Ruonan Jing,Liqun Sun,Haiming Xie
The inadequate room-temperature ionic conductivity and unstable electrode-electrolyte interfaces have encumbered the widespread adoption of high-voltage solid-state Li metal batteries (SSLMBs). Here, we report a molecularly engineered polymer electrolyte synthesized by grafting poly(ethylene glycol) diacrylate (PEGDA) and 2,2,2-trifluoroethyl methacrylate (TFEMA) onto a tri(2-hydroxyethyl) isocyanurate triacrylate (THEICTA) framework, coupled with interface engineering strategies. The hierarchical coordination competition within the polymer matrix facilitates rapid Li⁺ transport, achieving an ionic conductivity of 0.95 mS cm⁻¹ at room temperature. Advanced characterization techniques including X-ray photoelectron spectroscopy (XPS), in situ X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM) reveal the formation of a robust, nitrided and boronized cathode electrolyte interphase (CEI) on LiNi 0.6 Co 0.2 Mn 0.2 O 2 (NCM622), effectively suppressing oxidative decomposition and mitigating structural degradation at high voltages (≥4.5 V). As a result, the Li||NCM622 cell delivers a high initial discharge capacity of 188.6 mAh g⁻¹ with 70.4 % capacity retention after 700 cycles. Furthermore, a Li metal pouch cell featuring an energy density of 456 Wh kg⁻¹ demonstrates excellent cycling stability, maintaining a capacity retention rate of 87.8 % after 130 cycles. This study provides a scalable molecular design strategy for polymer electrolytes, advancing the development of high-voltage SSLMBs for next-generation energy storage.
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2022
·
IF 18.027
De-Hui Guan,Xiao-Xue Wang,Fei Li,Li-Jun Zheng,Ma-Lin Li,Huan-Feng Wang,Ji-Jing Xu
At present, photoassisted Li–air batteries are considered to be an effective approach to overcome the sluggish reaction kinetics of the Li–air batteries. And, the organic liquid electrolyte is generally adopted by the current conventional photoassisted Li–air batteries. However, the superior catalytic activity of photoassisted cathode would in turn fasten the degradation of the organic liquid electrolyte, leading to limited battery cycling life. Herein, we tame the above limitation of the traditional liquid electrolyte system for Li-CO2 batteries by constructing a photoassisted all-solid-state Li-CO2 battery with an integrated bilayer Au@TiO2/Li1.5Al0.5Ge1.5(PO4)3 (LAGP)/LAGP (ATLL) framework, which can essentially improve battery stability. Taking advantage of photoelectric and photothermal effects, the Au@TiO2/LAGP layer enables the acceleration of the slow kinetics of the carbon dioxide reduction reaction and evolution reaction processes. The LAGP layer could resolve the problem of liquid electrolyte decomposition under illumination. The integrated double-layer LAGP framework endows the direct transportation of heat and Li+ in the entire system. The photoassisted all-solid-state Li-CO2 battery achieves an ultralow polarization of 0.25 V with illumination, as well as a high round-trip efficiency of 92.4%. Even at an extremely low temperature of −73 °C, the battery can still deliver a small polarization of 0.6 V by converting solar energy into heat to achieve self-heating. This study is not limited to the Li–air batteries but can also be applied to other battery systems, constituting a significant step toward the practical application of all-solid-state photoassisted Li–air batteries.
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 32
·期 1
·2106911
·
IF 18.808
Xuhui Xiong,Liting Yang,Guisheng Liang,Chao Wang,Guanyu Chen,Ziqi Yang,Renchao Che
The oxide perovskite family holds great promise for diverse applications on account of their unique chemical and physical properties. However, owing to the inadequate Li + -storage sites, the insertion-type perovskite anodes for lithium-ion batteries (LIBs) are limited. A-site deficient perovskites with rich intrinsic vacancies and ion transport channels are believed to be the desirable hosts of superior Li + storage. Herein, the perovskite Li 0.1 La 0.3 NbO 3 (LLNO) is designed and demonstrated as the remarkable anode for LIBs with a high specific capacity, a safe operating voltage, an excellent rate performance, and a long cycling life. More importantly, the outstanding cycling stability of LLNO is originated from its low strain characteristic with a maximum volume change of only 1.17%. The exceptional rate performance can be explained by the unconventional Li + transport pathways with external → grain boundaries → lattice deficiencies. These results not only reveal that A-site deficient perovskite LLNO is a promising anode for LIBs but also provide fundamental insights into the Li + ions transport mechanism, facilitating the development of high-performance perovskite anodes.
✓ 已验证
DOI
高影响因子
ChemSusChem
·
2024
·
IF 7.5
Yanan Dong,Ju Bai,Luqi Xiao,Shangqing Chen,Lu Bai,Huaigang Cheng,Linglong Shan,Junfeng Wang,Yi Nie
Graphical Polyethyleneimine (PEI)-templated ZIF-8 (PEI-ZIF-8) was synthesized and incorporated into the PEI aqueous solution, then interfacial polymerized with trimesoyl chloride (TMC) to obtain the PEI-ZIF-8 modified polyamide NF membrane. The optimal PEI-ZIF-8-TMC membrane exhibits a permeance of 9 L/h m 2 bar and a Mg 2+ /Li + separation factor (SF) of 19. MOFs-modified nanofiltration (NF) membranes have been gained a lot of attention due to their favorable permeability and ion separation performance. Nevertheless, the prevailing preparation techniques are afflicted by the incompatibility of MOFs with polymers and the facile loss of MOFs. In this work, polyethyleneimine (PEI)-templated ZIF-8 (PEI-ZIF-8) was synthesized and incorporated into the PEI aqueous solution, then interfacial polymerized with trimesoyl chloride (TMC) to obtain the PEI-ZIF-8 modified polyamide NF membrane. This PEI modified strategy could endow the ZIF-8 nanoparticles with positively charged properties to avoid the aggregation and increase the interfacial compatibility with the polyamide. Meanwhile, the appropriate pore size of ZIF-8 (3.4 Å), which is between the hydration sheath surrounding of Li + (2 Å) and Mg 2+ (4.2 Å) impart the membrane with precise Mg 2+ /Li + separation ability. The optimal PEI-ZIF-8-TMC membrane exhibits a permeance of 9 L/h m 2 bar and a Mg 2+ /Li + separation factor (SF) of 19, both of which surpass the performance of the pure PEI-TMC membrane, which has a permeance of 4 L/h m 2 bar and a Mg 2+ /Li + separation factor of 11. Meanwhile, the membrane exhibited excellent long-term stability of 85 h. This novel approach to preparing MOFs-modified NF membrane represents a promising avenue for the separation of lithium and magnesium.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-11
·
IF 14.7
Fang Cheng-Dong,Huang Ying,Sun Yi-Fan,Sun Peng-Fei,Li Ke,Yao Shu-Yang,Zhang Min-Yi,Fang Wei-Hui,Chen Jia-Jia
Understanding the Li-ions conduction network and transport dynamics in polymer electrolyte is crucial for developing reliable all-solid-state batteries. In this work, advanced nano- X-ray computed tomography combined with Raman spectroscopy and solid state nuclear magnetic resonance are used to multi-scale qualitatively and quantitatively reveal ion conduction network of poly(ethylene) oxide (PEO)-based electrolyte (from atomic, nano to macroscopic level). With the clear mapping of the microstructural heterogeneities of the polymer segments, aluminium-oxo molecular clusters (AlOC) are used to reconstruct a high-efficient conducting network with high available Li-ions (76.7%) and continuous amorphous domains via the strong supramolecular interactions. Such superionic PEO conductor (PEO-LiTFSI-AlOC) exhibites a molten-like Li-ion conduction behaviour among the whole temperature range and delivers an ionic conductivity of 1.87 × 10 −4 S cm −1 at 35 °Ϲ. This further endows Li electrochemical plating/stripping stability under 50 μA cm −2 and 50 μAh cm −2 over 2000 h. The as-built Li|PEO-LiTFSI-AlOC|LiFePO 4 full batteries show a high rate performance and a capacity retention more than 90% over 200 cycling at 250 μA cm −2 , even enabling a high-loading LiFePO 4 cathode of 16.8 mg cm −2 with a specific capacity of 150 mAh g −1 at 50 °Ϲ.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Water Process Engineering
·
2024
·
IF 6.3
Jian Dong,Yi Wang,Liangliang Dong,Tatsuo Kaneko,Weifu Dong,Dongjian Shi,Mingqing Chen
To address the membrane challenges such as the trade-off effect between water permeance and separation selectivity, development of a desirable nanofiltration membrane structure is crucial. And, it is important to design a positively charged surface to enhance charge repulsion force between membrane surface and ions due to lithium (Li) extraction problem as the close hydration diameter of magnesium (Mg) and lithium ions. Herein, a strategy that involves regulating membrane structure to create a loose and dense double-layer structure via bi-directional interfacial polymerization has been proposed to form selectivity-enhanced nanofiltration membranes for Li + /Mg 2+ separation. The incorporation of dopamine (DA) and trimesoyl chloride (TMC) in first loose layer could improve the membrane stability, while the amine groups from polyethyleneimine (PEI) or polyvinylamine (PVAm) in the second dense layer surface, provided by rich amine polymers, could improve the rejection of divalent magnesium ion. The as-fabricated membrane DA-TMC-PEI shows enhanced permeance (around 15.4 L m −2 h −1 bar −1 ) and the membrane DA-TMC-PVAm demonstrates outstanding ion selectivity with Li + /Mg 2+ separation factor of 30. Moreover, the DA-TMC-PEI and DA-TMC-PVAm membranes could efficiently purify the ratio of Mg 2+ /Li + solution from 50 to 0.43. We believe the strategy could provide a promising potential in lithium extraction.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Jiayue Wang,Reili Li,Jinke Wang,Yujie Gao,Meiyi Wang,Huashan Wang
As an essential material for manufacturing lithium batteries, the demand of lithium is increasing, which means novel extracting method from various lithium-containing solutions is necessary. Spiropyran molecules undergo a photoisomerization reaction under light, transitioning from a closed-ring form (colorless) to an open-ring form (colored), generating multiple coordination sites to form coordination bonds with metal ions. In this paper, a polyacrylamide/carboxymethyl chitosan composite aerogel grafted with photoresponsive spiropyragroups (Fe 3 O 4 /CNTs@PAM/CS-SP), used for extracting lithium from solutions, was prepared by dual cross-linking and vacuum freeze-drying. Batch adsorption experimental results showed that the incorporation of Fe 3 O 4 nanoparticles further enhances its adsorption capability, as it enables rapid separation of the aerogel from water using an external magnetic field and also improves the adsorption efficiency due to its magnetic properties. The aerogel exhibits good adsorption capacity in the pH range of 9–12 and shows selectivity for Li in simulated brine, achieving a maximum adsorption capacity of 176.5 mg/g at 35 °C and a Li concentration of 1 g/L. The preparation of this aerogel offers a novel and effective approach to creating environmentally friendly adsorbents, providing a new method for extracting lithium from lithium-containing solutions.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）