Small
·
2024
·Vol. 20
·期 34
·2402108
·
IF 13
Shan Fang,Huasong Wang,Shangquan Zhao,Miaomiao Yu,Xiang Liu,Yong Li,Fanglin Wu,Wenhua Zuo,Naigen Zhou,Gregorio F. Ortiz
Lithium metal is a highly promising anode for next-generation high-energy-density rechargeable batteries. Nevertheless, its practical application faces challenges due to the uncontrolled lithium dendrites growth and infinite volumetric expansion during repetitive cycling. Herein, a composite lithium anode is designed by mechanically rolling and pressing a cerium oxide-coated carbon textile with lithium foil (Li@CeO 2 /CT). The in situ generated cerium dioxide (CeO 2 ) and cerium trioxide (Ce 2 O 3 ) form a heterojunction with a reduced lithium-ion migration barrier, facilitating the rapid lithium ions migration. Additionally, both CeO 2 and Ce 2 O 3 exhibit higher adsorbed energy with lithium, enabling faster and more distributed interfacial transport of lithium ions. Furthermore, the high specific surface area of 3D skeleton can effectively reduce local current density, and alleviate the lithium volumetric changes upon plating/stripping. Benefiting from this unique structure, the highly compact and uniform lithium deposition is constructed, allowing the Li@CeO 2 /CT symmetric cells to maintain a stable cycling for over 500 cycles at an exceptional high current density of 100 mA cm −2 . When paired with LiNi 0.91 Co 0.06 Mn 0.03 O 2 (NCM91) cathode, the cell achieves 74.3% capacity retention after 800 cycles at 1 C, and a remarkable capacity retention of 81.1% after 500 cycles even at a high rate of 4 C.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Energy Storage Materials
·
2025
·
IF 20.2
Lei Zhu,Dengxu Wu,Chang Guo,Jian Peng,Zhiwen Jiang,Guangtao Ma,Chang Xu,Weitao He,Liquan Chen,Fan Wu
Cylindrical batteries have been explored as promising grid energy storage device, due to their high safety margin and low capital/maintenance costs. However , the practical application of cylindrical batteries is hindered by their high operational temperatures (above 240 °C). Herein , we report a sulfide-based cylindrical battery with a significantly reduced operating temperature of 30 °C, enabled by a sulfide solid electrolyte tube, a liquid lithium anode, and an in-situ polymerized gel layer. The battery demonstrates stable performance over a temperature range of 20–55 °C, maintaining 98 % of its capacity after 50 cycles at 30 °C and achieving 80 % energy efficiency. Additionally, the battery recovers stable electrochemical performance after freezing at -70 °C for 6 h. The symmetric battery also exhibits stable cycling for 500 h at 1 mA cm - ², with a 33.01 % increase in critical current density to 4.07 mA cm - ², attributed to optimized ceramic sintering that reduces grain boundaries. This work addresses a century-old challenge in cylindrical batteries by incorporating room-temperature superionic-conductivity sulfide electrolyte tubes, significantly lowering operating temperature, costs, and associated risks.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2018
·Vol. 42
·期 21
·17311-17316
·
IF 3.201
Changjin Li,Zhengyi Qian,Yulin Ma,Pengjian Zuo,Chunyu Du,Hua Huo,Geping Yin
Non-aqueous rechargeable Li–O2 batteries have attracted great attention owing to their ultra-high specific energy densities. However, the high charge overpotential and the interfacial instability of lithium anodes still need to be overcome before the practical application of Li–O2 batteries. Here, we use KI as a bifunctional electrolyte additive for Li–O2 batteries. The results demonstrate that I− could act as a redox mediator to effectively reduce the charge overpotential by 0.7 V. On the other hand, the introduction of K+ contributes to decreasing the polarization, optimizing the morphology, reducing the surface by-products of the lithium anode and dramatically improving the uniform distribution of discharge products on the cathode surface. The dual functions of KI additive thus successfully boost the electrochemical performances of Li–O2 batteries.
研究领域:
电化学
·
能源材料
·
锂离子电池
·
界面化学
·
储能技术
✓ 已验证
DOI
高影响因子
ChemElectroChem
·
2018
·Vol. 5
·期 13
·1702-1707
·
IF 4.446
Jiaqi Wang,Junxiang Liu,Yichao Cai,Fangyi Cheng,Zhiqiang Niu,Jun Chen
Graphical Right off the batt : A Li@Super P composite anode with a high specific surface area is fabricated through a low-cost brushing method, which effectively decreases the interface impedance and overpotential of Li depositing/stripping. The anode can also mitigate the detrimental shuttling effect of I 3 − generated from LiI during the charging process. The combination of the protected Li anode and LiI mediator delivers superior Li−O 2 battery performance. Rechargeable Li−O 2 batteries represent a highly attractive battery technology, owing to a high theoretical energy density of 3500 Wh kg −1 , but they suffer from large charging polarization and lithium anode degradation on cycling. Herein, we report a Li−O 2 battery system with reduced polarization and a long lifespan, which is realized by using a novel Li@Super P composite anode integrated with lithium iodide in ether-based electrolyte. Coating a Super P carbon layer, with an optimal thickness of approximately 30 μm, onto the lithium anode results in a lowered interface impedance and a decreased Li depositing/stripping overpotential (<15 mV) over 300 cycles at 0.3 mA cm −2 . The Li−O 2 batteries assembled with the Li@Super P anode and LiI additive could mitigate the detrimental shuttling effect of I 3 − and deliver a high reversible capacity of 1000 mAh g −1 with a median charge voltage lower than 3.3 V after 50 cycles. This study provides a simple yet effective way to protect the lithium anode and design high-performance Li−O 2 batteries.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 28
·14062-14070
·
IF 11.301
Dong Liang,Tengfei Bian,Qing Han,Hua Wang,Xiaosheng Song,Binbin Hu,Jinling He,Yong Zhao
The low cycle stability of the lithium anode has become one of the bottlenecks restricting the development of lithium-metal batteries with high theoretical energy density. Serious side reactions between lithium and electrolyte components are one of the key reasons for the poor cycle stability of the lithium anode. Herein, lithiated graphene oxide (GO-Li) and lithium poly(styrene sulfate) (PSS-Li) are used to construct composite membranes for the protection of the Li-anode, which shows long-term operation over 1000 h in Li‖Li symmetric cells in the presence of redox chemicals that accelerate the cathodic reaction. The high content of Li+ of PSS-Li can not only inhibit the dissolution and diffusion of redox molecules in the membrane, but also improve the Li+ transport rate through the membrane. In our study, we take a lithium–oxygen (Li–O2) battery as the model device and 2,2,6,6-tetramethyl-1-piperidinyloxy as the model redox chemical to accelerate the cathodic reaction. Compared with conventional membranes, artificial membranes can effectively inhibit the side reaction between the redox molecules and the lithium anode. Consequently, the energy efficiency and cycle stability (over three times) of Li–O2 batteries are greatly improved. This provides an important theoretical basis and technical support for the design and preparation of membranes for high performance energy-conversion batteries.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2023
·
IF 17.1
Shuxian Zhang,Jianchao Chen,Chunyan Zhu,Qingyuan Liu,Qingyu Li,Renbo Liu,Xiaobo Jiang,Yijie Yan,Shengjian Sun,Longwei Yin,Rutao Wang
All-solid-state batteries (ASSBs) with a Li metal anode are expected to be one of the most promising energy storage systems to achieve high energy density. However, the interfacial instability between the Li metal anode and solid-state electrolyte (SSE) limits the rate capability and cycling stability of ASSBs. The main issue is the formation of voids at the Li/SSE interface during Li stripping due to the slow diffusion of Li within the bulk Li metal, then increasing internal cell resistance and inducing the formation of lithium dendrites. To address these issues, a composite Li anode (LAO) composed by Li–Ag alloy and Li2O is constructed by mixing the stoichiometric metal Li and Ag2O directly. LAO anode is capable of improving bulk Li diffusion kinetics and inhibiting the formation of interfacial voids effectively, achieving a high critical current density over 1.5 mA cm–2 and long stable cycling over 1000 h at 1 mA cm–2. The ASSBs, employing LAO as the anode, Li6PS5Cl as the SSE, and LiCoO2 as the cathode, exhibit superior rate capability and stable cycling over 4000 cycles at 5 C. Moreover, ASSBs can operate stably with a high LiCoO2 loading of 17.8 mg cm–2 for more than 100 cycles at 0.2 C.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
CHINESE CHEMICAL LETTERS
·
2023
·
IF 9.1
Haochang Zhang,Zhaozhe Yu,Jinyin Cheng,Hannan Chen,Xiao Huang,Bingbing Tian
Li 2 ZrCl 6 (LZC) solid-state electrolytes (SSEs) have been recognized as a candidate halide SSEs for all-solid-state Li batteries (ASSLBs) with high energy density and safety due to its great compatibility with 4 V-class cathodes and low bill-of-material (BOM) cost. However, despite the benefits, the poor chemical/electrochemical stability of LZC against Li metal causes the deterioration of Li/LZC interface, which has a detrimental inhibition on Li + transport in ASSLBs. Herein, we report a composite SSE combining by LZC and argyrodite buffer layer (Li 6 PS 5 Cl, LPSC) that prevent the unfavorable interaction between LZC and Li metal. The Li/LPSC-LZC-LPSC/Li symmetric cell stably cycles for over 1000 h at 0.3 mA/cm 2 (0.15 mAh/cm 2 ) and has a high critical current density (CCD) value of 2.1 mA/cm 2 at 25 °C. Under high temperature (60 °C) which promotes the reaction between Li and LZC, symmetric cell fabricated with composite SSE also display stable cycling performance over 1200 h at 0.3 mAh/cm 2 . Especially, the Li/NCM ASSLBs fabricated with composite SSE exhibit a high initial coulombic efficiency, as well as superior cycling and rate performance. This simple and efficient strategy will be instrumental in the development of halide-based high-performance ASSLBs.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
IONICS
·
2023
·Vol. 29
·期 5
·1803-1812
·
IF 2.8
Lou Ping,Li Long,Wu Yiyun,Yue Lingping,Wang Yao,Tang Shun,Zhang Weixin,Cao Yuancheng
Li–air battery-based solid electrolyte can better protect the lithium anode from the corrosion of other components and effectively block the risk of ignition and explosion caused by the lithium dendrite penetrating the dielectric layer. In this work, Li-containing ionic liquid (Li-IL) is absorbed in NH 2 -MIL-101(Cr) metal–organic frameworks (MOFs) to form a functional filler and further incorporated the filler into polyethylene oxide (PEO) to fabricate composite solid electrolyte (Li-IL@NH 2 -MIL-101(Cr)/PEO). The lithium anode and the air cathode were modified with Li-IL@NH 2 -MIL-101(Cr)/PEO, and the integrated solid-state Li–air batteries were prepared by roller pressing. Taking advantage of nanostructured Li-IL@NH 2 -MIL-101(Cr), fast lithium–ion transportation is achieved in the bulk and across the electrode/electrolyte interface. As a result, the ionic conductivity of the Li-IL@NH 2 -MIL-101(Cr)/PEO reaches 3.1 × 10 –4 S/cm, the Li–air battery using the Li-IL@NH 2 -MIL-101(Cr)/PEO as solid electrolyte exhibited a high specific capacity of 11,682 mAh/g and remarkable cycling stability of 122 cycles.
研究领域:
储能
·
材料科学
·
电化学
·
纳米技术
·
电池技术
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 8
·4880-4889
·
IF 12.732
Wei Wu,Wang Lin,Hongjiang Chen,Keyan Wei,Zhitong Li,Haitao Yang,Mingxian Liu,Huaicheng Xiang,Libo Deng,Lei Yao
The development of high-performance solid-state batteries (SSBs) that integrate high safety with high energy density has long been pursued. However, conventional lithium-containing anode materials are unable to balance these two requirements, thereby necessitating the exploration of lithium-free anodes for SSBs. In the current study, a core–shell lithium-free α-Fe2O3@TiNb2O7 (TNO) nanofiber composite is synthesized and applied as an SSB anode. The confinement effect from the hollow TNO nanotubes on the encapsulated α-Fe2O3 nanoparticles can buffer the volume-change crushing during charging/discharging, leading to robust structural stability. Moreover, the high rate capability of TNO and high capacity of α-Fe2O3 work synergistically to provide superior electrochemical performances. The prepared α-Fe2O3@TNO composite delivers twice the reversible capacity (625 mA h g−1 at 0.1 A g−1) of pristine TNO as well as a remarkably prolonged cycle life (500 cycles with 79.2% capacity retention) and an improved rate performance (305 mA h g−1 at 3 A g−1) compared with those of α-Fe2O3, making this composite the most efficient TNO-based anode material ever reported. By pairing the composite with the high-energy Li[Ni0.8Co0.1Mn0.1]O2 (NCM811) cathode, the SSB full cell exhibits a high energy density of 400 W h kg−1. These results demonstrate the feasibility and great potential of the proposed lithium-free anode material in SSBs for practical applications.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·Vol. 34
·期 24
·2315512
·
IF 18.5
Yuran Yu,Yuanyuan Huang,Zibo Xu,Zhiheng Wu,Zhuo Wang,Guosheng Shao
Recently, halide solid state electrolytes (SSEs) have received great attention owing to their fast ionic conductivity, high oxidation potential, and good chemical and electrochemical compatibility with high voltage cathode materials. However, most of reported halide SSEs contain rather rare and expensive elements, which hinders their sustainable utilizations in practical batteries. Here in this work, under the guidance of systematic modelling based on the density functional theory (DFT), a low-cost alternative is developed through optimizing the lattice chemistry in a recently identified spinel-like chloride Li 2 CrCl 4 into Li 5/3 Cr 1/3 Zr 1/3 Cl 4 for remarkably enhanced ionic conductivity and stable electrochemical window with respect to the Li-anode. This new phase has then been synthesized successfully, delivering an ionic conductivity over 1200 times of that of the pristine phase Li 2 CrCl 4 , in addition to a high oxidation potential (up to 4.1 V vs Li/Li + ) to enable outstanding interfacial compatibility with high voltage cathodes. Such a high-voltage and fast Li-ion conducting solid-state electrolyte is expected to provide a highly desirable basis toward developing high energy-density all solid-state batteries (ASSBs) using economical and Earth-rich elements.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
SusMat
·
2024
·
IF 18.7
Tianyi Wang,Yimeng Zhang,Xueyan Huang,Peifeng Su,Min Xiao,Shuanjin Wang,Sheng Huang,Dongmei Han,Yuezhong Meng
Practical high-voltage lithium metal batteries hold promise for high energy density applications, but face stability challenges in electrolytes for both 4 V-class cathodes and lithium anode. To address this, we delve into the positive impacts of two crucial moieties in electrolyte chemistry: fluorine atom (-F) and cyano group (-CN) on the electrochemical performance of polyether electrolytes and lithium metal batteries. Cyano-bearing polyether electrolytes possess strong solvation, accelerating Li + desolvation with minimal SEI impact. Fluorinated polyether electrolytes possess weak solvation, and stabilize the lithium anode via preferential decomposition of F-segment, exhibiting nearly 6000-h stable cycling of lithium symmetric cell. Furthermore, the electron-withdrawing properties of -F and -CN groups significantly bolster the high-voltage tolerance of copolymer electrolyte, extending its operational range up to 5 V. This advancement enables the development of 4 V-class lithium metal batteries compatible with various cathodes, including 4.45 V LiCoO 2 , 4.5 V LiNi 0.8 Co 0.1 Mn 0.1 O 2 , and 4.2 V LiNi 0.5 Co 0.2 Mn 0.3 O 2 . These findings provide insights into design principles centered around polymer components for high-performance polymer electrolytes.
研究领域:
材料科学
·
电化学
·
电池技术
·
聚合物化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2023
·Vol. 27
·期 6
·1399-1409
·
IF 2.5
Zhang Ruixin,Xie Binxuan,Rong Junfeng,Liu Lili,Hou Guolin,Chen Shimou
Polymer electrolytes with high safety and high performance are considered to be one of the most promising candidates to upgrade the traditional organic-solvent-based lithium-ion batteries. However, unlimited thermal runaway and incompatibility between electrolyte and electrode greatly limit the development of advanced polymer electrolytes. In this work, we fabricated bilayer polymer electrolytes (DLMs) with a multilevel heterostructure to achieve high-temperature self-shutdown functionality and uniform Li-ion flux. The double-layer heterostructure consists of a self-shutdown layer in contact with the cathode and an ionic liquid composite polymer layer in contact with the anode, which can achieve effective electrode–electrolyte interface contact, fast self-shutdown, and more than 900 h of stable lithium plating/stripping. In addition, the NCM523/DLM/Li battery exhibits a high reversible capacity of 129.7 mAh g −1 at 0.5 C and maintains high-capacity retention (> 89%) after 200 charge–discharge cycles. This study shows a great advantage in handling thermal abuse and a stable lithium anode, suggesting a promising approach to the high-safety lithium metal batteries.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）