ADVANCED MATERIALS
·
2022
·Vol. 34
·期 47
·2206039
·
IF 32.086
Yangyang Lai,Huixian Xie,Peng Li,Biao Li,Along Zhao,Laibing Luo,Zewen Jiang,Yongjin Fang,Shengli Chen,Xinping Ai,Dingguo Xia,Yuliang Cao
The anionic redox reaction (ARR) has attracted extensive attention due to its potential to enhance the reversible capacity of cathode materials in Li/Na-ion batteries (LIBs/SIBs). However, the understanding of its activation mechanism is still limited by the insufficient mastering of the underlying thermodynamics and kinetics. Herein, a series of Mg/Li/Zn-substituted Na x MnO 2 and Li x MnO 2 cathode materials are designed to investigate their ARR behaviors. It is found that the ARR can be activated in only Li-substituted Li x MnO 2 and not for Mg- and Zn-substituted ones, while all Mg/Li/Zn-substituted Na x MnO 2 cathode materials exhibit ARR activities. Combining theoretical calculations with experimental results, such a huge difference between Li and Na cathodes is closely related to the migration of substitution ions from the transition metal layer to the alkali metal layer in a kinetic aspect, which generates unique Li(Na)–O–□ TM and/or □ Li/ Na –O–□ TM configurations and reducing reaction activation energy to trigger the ARR. Based on these findings, an ion-migration mechanism is proposed to explain the different ARR behaviors between the Na x MnO 2 and Li x MnO 2 , which can not only reveal the origin of ARR in the kinetic aspect, but also provide a new insight for the development of high-capacity metal oxide cathode materials for LIBs/SIBs.
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Zongmin Hu,Chen Sun,Yimin Xuan
Thermoelectric technologies (TEs) offer immense potential for waste heat recovery and energy storage. However, the practical application of current TEs has been severely hampered by potential performance degradation in extreme environments, particularly at high temperatures, due to electrolyte flammability or poor carrier mobility. The development of high-temperature, high-performance TEs is crucial for broadening their operational range and enabling diverse applications. Here, practical high-temperature high-voltage thermal charging cells (HHTCCs) are reported, facilitated by a heat-resistant trifluoromethanesulfonate-based Ca–Li dual-cationic ionic liquid electrolyte containing functionalized AmimCl solvent, together with a thermotolerant composite membrane, PEN(polyphenylene-ether-nitrile)@ZrBDC-F-4%. The dual-cation mechanism enables high thermal voltage through cooperative energy storage, while the functionalized AmimCl accelerates the mobility of Ca 2+ and Li + ions by weakening the surrounding shielding effect. Additionally, the anionophilic ZrBDC-F-4% nanoparticles in the composite membrane enhance carrier migration. As a result, the HHTCCs exhibit an impressive thermal voltage of 1.138 V, a remarkable thermopower of 15.3 mV K −1 , and an outstanding Carnot-relative efficiency of 9.56% over an unprecedented temperature range from 328.15 to 393.15 K, demonstrating the excellent safety and feasibility of HHTCCs. This work expands the service-temperature range of i-TEs, holding significant promise for high-temperature, high-performance waste heat harvesting.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Energy Storage Materials
·
2022
·
IF 20.831
Pengfeng Jiang,Jiaqi Cao,Bin Wei,Guoyu Qian,Shaofei Wang,Yuansheng Shi,Guangyuan Du,Xueyi Lu,Chuying Ouyang,Fahe Cao,Xia Lu
The interface compatibility lies in the heart of present investigations on solid-state batteries, now facing significant challenges in practical use. The non-coherent interface structure with the underlying complex electrochemical processes evolves dynamically to pregnant the unfriend seeds to degrade the battery performance. Therefore, interface engineering (or control) in solid-state batteries gives birth to a new theme as ‘the interface is equal to the battery’. In this context, a facile but robust technique is proposed here by smoothing the Li 1.5 Al 0.5 Ge 1.5 P 3 O 12 (LAGP) ceramic pellet with a mirror-like surface, which is found operational in running a solid battery in unprecedentedly a thousand cycles with capacity retention of 80% at 0.5C, 50 °C. Such an unconventional operation is, as a matter of fact, largely decreasing the physically interface contact but proved powerful in guiding the Li-ion homogeneous deposition. Moreover, the self-generated LiF involved interphase layer works efficiently to dynamically balance structural and electrochemical stabilities, where the LiF is introduced by the in-situ polymerization of tiny liquid electrolytes. Hence, the profound results draw the incompatible interface issues forth to the component adjustment of interphases, namely in search for rational descriptions to connect the solid-state electrolyte and electrodes, which probably holds the key to unlocking the high energy density solid-state batteries.
✓ 已验证
DOI
高影响因子
ACS Nano
·
2023
·
IF 17.1
Shuixin Xia,Fengguang Li,Xun Zhang,Lingli Luo,Yue Zhang,Tao Yuan,Yuepeng Pang,Junhe Yang,Wei Liu,Zaiping Guo,Shiyou Zheng
The successful substitution of Li metal for the conventional intercalation anode can promote a significant increase in the cell energy density. However, the practical application of the Li metal anode has long been fettered by the unstable solid electrolyte interface (SEI) layer on the Li metal surface and notorious dendritic Li growth. Herein, a stabilized SEI layer with in situ constructed fast ion transport channels has successfully been achieved by a robust In2S3-cemented poly(vinyl alcohol) coating. The modified Li metal demonstrates significantly enhanced Coulombic efficiency, high rate performance (10 mA cm–2), and ultralong life cycling stability (∼4900 cycles). The Li|LiCoO2 (LCO) cell presents an ultralong-term stable operation over 500 cycles at 1 C with an extremely low capacity decay rate (∼0.018% per cycle). And the Li|LCO full cell with the ultrahigh loading cathode (∼25 mg cm–2) and ultrathin Li foil (∼40 μm) also reveals a prolonged cycling performance under the low negative-to-positive capacity ratio of 2.2. Furthermore, the Li|LCO pouch cell with a commercial cathode and ultrathin Li foil still manifests excellent cycling performance even under the harsh conditions of limited Li metal and lean electrolyte. This work provides a cost-effective and scalable strategy toward high performance practical Li metal batteries.
✓ 已验证
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2024
·
IF 2.7
Yichuan Kong,Yongzhi Duan,Yuezhi Zhang,Yulin Min,Hongxiu Lu,Penghui Shi
The lithium-ion battery industry is experiencing explosive growth. Efficiently and greenly recycling Li, Co and other valuable metals is extremely important to alleviate the scarcity of resources and protect the environment. In this study, an improved recycling strategy is proposed to convert spent LiCoO2 batteries into water-soluble sulfate below 350 °C using the auxiliary effect of urea on sulfation roasting. This strategy not only allows for the direct synthesis of precursors for regeneration after selective recovery of lithium and cobalt but also further reduces the roasting temperature requirement compared to the conventional salt-thermal method. After roasting, Li and Co can be recovered from the solution by simple aqueous leaching. Under optimal conditions, the leaching rates of Li and Co were 94.94% and 95.47%, respectively. Subsequently, the Li and Co compounds that could be used as battery precursors were obtained by the addition of CO32−. Characterized by high efficiency, low energy consumption, absence of secondary pollution, and utilization of inexpensive and readily accessible raw materials, this approach offers a novel concept in the domain of lithium-ion battery recycling via salt-thermal methods.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Ziyang Liang,Wenzhao Huang,Gesong Huang,Xiaola Li,Yuqing Liu,Boyang Zhang,Shuxing Wu,Chenyu Liu,Zhan Lin,Dong Luo
Lithium-rich manganese-based layered oxides (LLOs) are regarded as a kind of ideal cathode materials of the next-generation lithium-ion batteries owing to their exceptionally high theoretical capacity (>300 mAh g −1 ). Nevertheless, these cathode materials are subject to voltage decay and capacity fading due to the irreversible oxygen release and transition metal (TM) migration. Hence, a multisite doping strategy is proposed to interrupt the migration path of TM ions for LLO cathodes with superior structural stability. Moreover, multisite doping also offers pillar effect, and stabilizes lattice oxygen by the establishment of robust covalent P-O bonds to constrain the removal of electrons from the O 2p band. The P-Mg co-doped sample exhibits enhanced dynamic structural reversibility, lattice oxygen stability, and a significantly augmented resistance to electrolyte corrosion. Consequently, the co-doped sample shows outstanding capacity and voltage stability. Its capacity retention ratio is as large as 92.5 % even after 400 cycles, with a corresponding voltage decay rate of merely 0.688 mV/cycle. Multisite doping strategy presents an innovative approach to mitigating voltage decay and capacity fading of Li-rich Mn-based layered cathodes.
✓ 已验证
产品关联
DOI
高影响因子
Energy Storage Materials
·
2024
·
IF 18.9
Laibing Luo,Kean Chen,Ruoyu Cao,Hui Chen,Miaomiao Xia,Along Zhao,Xiaoyang Chen,Weihua Chen,Zhongxue Chen,Yongjin Fang,Yuliang Cao
Lithium-ion batteries (LIBs) operating at low temperature has always been a significant challenge. In this work, Ethyl fluoroacetate (EFA) was utilized as a single solvent to design a low-temperature electrolyte (LTE). The weak Li + -solvent interaction facilitates fast de-solvation process and improved low-temperature performance, while the high oxidation resistance and fluorine-rich electrolyte/electrolyte interface induced by the fluorinated groups enables wide operating voltage and stable cycling of the LIBs . The EFA-based electrolyte endows the high-voltage (4.45 V) Graphite//LiCoO 2 pouch cell with prominent low-temperature adaptability (89.7 % capacity retention retains at −40 °C, and capable of charging at −20 °C) and outstanding cycling performance (87.7 % capacity retention after 400 cycles). This work sheds light on the design of high-voltage and low-temperature electrolytes for lithium-ion batteries.
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2019
·
IF 5.107
Changsheng Guo,Nan Li,Xiaoming Qian,Jie Shi,Miaolei Jing,Kunyue Teng,Zhiwei Xu
To explore nanofiltration (NF) membrane with high permeability and good separation for Li + from salt-lake, a triple-layered ultra-thin double Janus NF membrane was prepared with polyethersulfone (PES) substrate membrane, a carboxylated cellulose nanocrystal (CNC-COOH) interlayer and an ultra-thin polyamide (PA) layer via interfacial polymerization of polyethylenimine and trimesoyl chloride. The interlayer contain a large number of carboxyl groups, which could improve not only the negative potential of interlayer, but also the positive potential of the PA layer because of the increase of unreacted NH 2 . In addition, the hydrophilic of interlayer was stronger than the PA layer. Therefore, the interlayer and the ultra-thin PA layer could construct a double Janus NF membrane with hydrophobic/hydrophilic, positive/negative charge. It was found that the content of carboxyl groups and unreacted amino groups on the surface of Janus PES/CNC-COOH/PA NF membrane was increased obviously. The thickness of Janus NF membrane PA layer was 60.29 nm, 55.56% thinner than that in traditional PES/PA NF membrane and 25.89% thinner than that in weak Janus PES/cellulose nanocrystal/PA NF membrane. The Janus NF membrane had a minimum average surface roughness of 6.21 nm, an effective pore diameter of 1.38 nm, and exhibited a positive surface charge with a highly hydrophilic nature. Under the Mg 2+ /Li + ratio of 30 and 60, the Janus NF membrane exhibited the rejection difference between Mg 2+ and Li + reached to 74.35% and 83.96%, the water flux was 4.17 and 3.4 L/(m 2 ·h·bar), respectively, and the separation factor S Li,Mg was 12.15 and 5.84, respectively.
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 14
·9124-9133
·
IF 12.732
Guoping Liu,Lei Zhang,Yucun Zhou,Luke Soule,Yangchang Mu,Wenwu Li,Zhicong Shi
Designing a novel anode material with suitable elemental composition and bonding structure for improving the limited capacity and poor lithium-ion conductivity of lithium-ion batteries (LIBs) is still challenging. Here, guided by first-principles calculations, we report a higher crystal symmetric, cation-disordered zinc blende Zn0.5Ge0.5P anode material with high-capacity and high-rate capability owing to superior electron and lithium-ion transport compared to the parent allotrope chalcopyrite ZnGeP2. The Zn0.5Ge0.5P anode exhibits a large specific capacity of 1435 mA h g−1 with a high initial Coulombic efficiency of 92%. An amorphization–conversion–alloying reaction mechanism is proposed based on ex situ characterizations including X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. During lithiation, the material phase-changes through Li3P, LiZnGe, β-Li2ZnGe, and α-Li2ZnGe intermediates that provide suitable transport channels for fast diffusion of lithium ions. During delithiation, LiZn, Li15Ge4, and Li3P nanoparticles reassemble into Zn0.5Ge0.5P. A Zn0.5Ge0.5P–TiC–C composite with finer particle size and enhanced electronic conductivity exhibits an initial specific capacity of 1076 mA h g−1 and a capacity retention of 92.6% after 500 cycles.
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Yihua Tang,Jingjing Chen,Xiao Wang,Xinxin Wang,Yang Zhao,Zhiyong Mao,Dajian Wang
Nitrogen atoms doping was widely recognized as the promising technique to improve the electrochemical performances of various carbonaceous materials application for energy storage devices. Herein, we reported a facial fabrication of highly N-doped graphene-like carbon (NGC) through the carbonization of a mixture containing polypyrrole and g-C 3 N 4 nanosheets , which was employed as sacrificial template and extra nitrogen source simultaneously. The resultant NGC material integrate a range of excellent features including high nitrogen contents (17.54 at%), large specific surface areas (635.73 m 2 g −1 ) and abundant mesopores with high pore volume (1.9483 cm 3 g −1 ). As anode material in Li-ions batteries, the NGC material exhibits an promising initial discharge capacity of 2749 mAh g −1 at a current density of 50 mA g −1 and encouraging cycling stability (1143 mAh g −1 after 200 cycles) as well as excellent rate performance (440 mAh g −1 at 2 A g −1 ). This feasible fabrication presents a new guidance to exploit high performance N-doped carbon materials for the applications in energy storage devices.
✓ 已验证
DOI
高影响因子
Nanomaterials
·
2020
·Vol. 10
·期 8
·1502
·
IF 4.324
Yayong Li,Chunxiao Xu,Kaiyuan Liu,Pengwan Chen,Xin Gao
N-doped porous carbon encapsulated NiO/Ni composite nanomaterials (N-doped NiO/Ni@C) was successfully obtained by a one-step solution combustion method. This study demonstrates a one-step combustion method to synthesize n-doped porous carbon encapsulated NiO/Ni composite nanomaterials, using carbon dioxide as the carbon source, nickel nitrate as the nickel source, and hydrazine hydrate as the reaction solution. Spherical NiO nanoparticles with a particle size of 20 nm were uniformly distributed in the carbon matrix. The load of NiO/Ni can be controlled by the amount of nickel nitrate. The range of carbon content of recovered samples is 69–87 at%. The content of incorporated nitrogen for recovered samples is 1.94 at%. As the anode of lithium ion battery, the composite material exhibits high capacity, excellent multiplier performance and stable circulation performance. N-doped NiO/Ni@C-2 was applied to lithium ion batteries, and its reversible capacity maximum is 980 mAh g−1after 100 cycles at the current density of 0.1 A g−1. Its excellent electrochemical properties imply its high potential application for high-performance lithium-ion battery anode materials.Keywords:combustion synthesis;CO2reduction;porous carbon;nickel oxide;hydrazine hydrate;lithium ion battery;nanocomposite
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Jie Cui,Yunfei Du,Long Zhao,Xiaocheng Li,Zixu Sun,Dong Li,Hao Li
Rechargeable batteries paired with polyether-based solid-state electrolytes is a promising system to solve the safety problem of lithium metal (Li-metal) batteries, and stable solid electrolyte interface (SEI) layer between electrolyte and anode is highly required for their long-term stability. Here we propose a novel thermal-stable polymerized 1,3-dioxolane electrolyte (PSiDOL), which is in situ formed via a multifunctional 1,3-bis(3-glycidoxypropyl) tetramethyl disiloxane crosslinker. This network structural PSiDOL not only achieves good flame retardancy, significantly increased operating temperature and improved oxidative stability, but also induces the formation of stable and robust SEI layer with rich Li x SiO y /LiF on the surface of Li-metal anode. Moreover, the three-dimensional polymer skeleton with abundant polar groups is beneficial to improve the ionic conductance and cationic transference number. As a result, the PSiDOL electrolyte enable ultralong-term (over 4000 h) reversible and stable lithium plating/stripping in Li symmetrical cell for lithium anode. In addition, the assembled full cells based on such electrolyte display desirable cycling stability at high temperature and high voltage with suppressed electrolyte degradation. This work affords a facile and practical approach to develop advanced electrolytes for solid-state Li-metal batteries with high safety and durability.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）