Batteries & Supercaps
·
2022
·Vol. 5
·期 8
·e202200114
·
IF 6.043
Xiao-Meng Lu,Tiancun Liu,Yong Wang,Fei-Hu Du
Graphical Constructing lithiophilic skeleton : An unusual substrate with heterogeneous lithiophilicity, Ag nanoparticles encapsulated inside nitrogen (N)-doped carbon hollow spheres (denoted as Ag@NCHSs), is demonstrated to induce uniform Li deposition. Uncontrollable dendritic lithium (Li) growth and huge volume fluctuation are critical issues for the commercialization of Li metal anode. This work reports a three-dimensional conductive host with hierarchical lithiophilicity to promote the uniform Li plating/stripping. Except for the common merits of the large surface area and excellent conductivity, the unique structural and compositional design, Ag nanoparticles encapsulated inside nitrogen-doped carbon hollow spheres (Ag@NCHSs), allows a model of inside-outside Li deposition due to the promising lithiophilicity of Ag component. This type of Li deposition strategy is evidenced by in-situ optical microscope, in-situ X-ray diffraction (XRD) patterns and endows a promising ability to overcome the fatal issues of Li metal anode even at high areal capacities and current densities. As a result, the developed host with the hierarchical lithiophilicity enables a remarkable enhancement of cycling performances. The strategy of constructing hierarchical lithiophilicity brings new insights to stabilize the Li metal anode.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
NEW CARBON MATERIALS
·
2023
·
IF 5.7
Fang-yu Tao,Dan Xie,Wan-Yue Diao,Chang Liu,Hai-Zhu Sun,Wen-Liang Li,Jing-Ping Zhang,Xing-Long Wu
We report the fabrication of a lithiophilic Ti 3 C 2 T x MXene-modified carbon foam (Ti 3 C 2 T x -MX@CF) for the production of highly-stable LMBs that regulates Li nucleation behavior and reduces the volume change of a lithium metal anode (LMA). The 3D CF skeleton with a high specific surface area not only reduces the local current density to avoiding concentrated polarization, but also provides enough space to absorb the volume expansion during cycling. The excellent lithiophilicity of Ti 3 C 2 T x -MX produced by its abundant functional groups reduces the Li nucleation overpotential, guides uniform Li deposition without the formation of Li dendrites, and maintains a stable SEI on the anode surface. Consequently, a Li infiltrated Ti 3 C 2 T x -MX@CF symmetrical cell has an excellent cycling stability for more than 2 400 h with a low overpotential of 9 mV at a current density of 4 mA cm -2 and has a capacity of 1 mA h cm -2 . Furthermore, a Li- Ti 3 C 2 T x -MX@C||NCM111 full cell has a capacity of 129.6 mA h g -1 even after 330 cycles at 1 C, demonstrating the advantage of this method in constructing stable LMAs.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
电池技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Xiaolin Yan,Fangjun Ye,Yinggan Zhang,Liang Lin,Baisheng Sa,Fang Liu,Junjie Li,Laisen Wang,Jie Lin,Qingshui Xie,Dong-Liang Peng
Li dendrites caused by nonuniform Li plating and locally concentrated ion/electron flux would give rise to poor cycling performance and safety issues of short-circuit and so on. Herein, a functional nanolayer consisting of Indium Tin oxide (ITO) nanoparticles on 3D Cu foam was fabricated as case study to understand the mechanism of metal oxides on anchoring Li metal spots and how initial Li nucleation influences the following dendrites growth. Based on the experimental and theoretical results, it is demonstrated that not only the pristine metal oxides have higher binding energy with Li atom, but also in situ formed alloy phase during alloying process performs a great importance on homogeneous nucleation, thus leading to ordered ion/electron distribution and fast kinetics. Therefore, excellent wettability and even self-propagation behavior between ITO-Cu foam and molten Li are achieved, meanwhile the half cells with ITO-Cu foam electrodes exhibit an ultralow nucleation overpotential of 2 mV under 0.5 mA cm −2 . When the designed ITO-Cu foam@Li anodes is matched with LFP (LiFePO 4 ) cathodes, the constructed full cells can empower superior cycling stability for over 1000 cycles at 5C (3.4 mA cm −2 ), and remarkable specific capacity (149 mAh g −1 ) and capacity retention (80% for 250 cycles) even with ultrahigh mass loading (15.3 mg cm −2 ), which provides an avenue to regulate Li deposition/dissolution for high energy Li metal batteries.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米科技
·
金属电池
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Yonghuan Han,Zhiyuan Sang,Daolan Liu,Tao Zhang,Jianmin Feng,Wenping Si,Shi Xue Dou,Ji Liang,Feng Hou
Lithium metal batteries (LMBs) possess high energy and power density, while the dendrite growth on lithium metal anodes prevents its practical application. And most of the current modification methods only improve from a single aspect, which is difficult to achieve ideal effect of suppressing dendrite in the long cycling with high rate and areal capacity. Herein, a conductive and lithiophilic patch-like V 2 O 3 /VN nanosheet as regulating layer is designed on surface of lithium metal anode (V 2 O 3 /VN-Li) to hinder the dendrite growth. The superior lithiophilicity, fast electron/ion transport of V 2 O 3 /VN nanosheets contribute to a low nucleation overpotential and uniform lithium deposition, thus greatly suppressing the dendrite formation at high current density with repeated plating/stripping. As a result, the V 2 O 3 /VN-Li anode achieves ultra-long life for over 2000 h under ultra-high current density and areal capacity (30 mA cm −2 , 30 mAh cm −2 ). The modified strategy of multifunctional regulating layer on the surface of lithium metal anodes can open a new direction for the realization of high-power and high-energy–density LMBs.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
电池技术
✓ 已验证
DOI
高影响因子
Sustainable Energy & Fuels
·
2024
·
IF 5
Genxi Yu,Youchun Wu,Dawei Sha,Jianwen Cai,Gaofa Nie,Yaping Wang,Long Pan,ZhengMing Sun
Garnet solid-state electrolytes (SSEs) have extraordinary application prospects due to their high room temperature ionic conductivity and high stability to lithium metal. However, when exposed to air during the preparation process, contaminants are inevitably generated on the electrolyte surface, resulting in poor wettability of the Li/garnet interface and high interfacial resistance. Moreover, solid-state batteries assembled with contaminated electrolytes can easily lead to the formation and expansion of lithium dendrites. Herein, we demonstrate a surface chemistry strategy of rapid vulcanization treatment to improve interface problems by introducing lithium sulfides into the garnet electrolyte. Compared to the surface contaminants (e.g., Li2CO3) on garnet, lithium sulfides (e.g., Li2S) have several advantages; it is a good Li+ conductor and has good wettability to both the garnet surface and Li metal anode. The interfacial resistance of the vulcanized garnet-SSE pellets decreased from 2961 Ω cm2 for LLZT@LC to 391 Ω cm2 for LLZT@LS. In addition, the lithium symmetric battery assembled by using LLZT@LS pellets exhibits stable plating/stripping cycling performance and ultralow overpotential at a current of 0.2 mA cm−2 without Li dendrite growth. Moreover, the LiFePO4/Li batteries with LLZT@LS pellets show excellent rate performances and cycling stability (114.3 mA h g−1 @ 0.5C after 150 cycles) with a capacity retention of 86%. These results demonstrate that the rapid treatment of garnet contaminants by a surface chemistry strategy is not only a simple and efficient solution but also provides strong support for the realization of high-performance solid-state lithium metal batteries (SSLMBs).
研究领域:
材料科学
·
电化学
·
能源存储
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Yu Wu,Modeste Venin Mendieev Nitou,Ziheng Zhang,Daiqian Chen,Hesheng Yu,Yuanfu Chen
Lithium metal batteries (LMBs) offer great promise for next-generation high-energy density storage devices, yet their practical applications seriously hindered by dendritic lithium growth and unstable solid electrolyte interphase (SEI). To address these challenges, herein, we present a novel lithiophilic nickel boride embedded hollow carbon nanorods (NiB@HCR) as multifunctional interlayer for LMBs. The uniform distribution of lithiophilic NiB@HCR creates plentiful chemisorption sites, enabling efficient Li + flux regulation and uniform deposition. It also facilitates the in-situ formation of stable LiF-rich SEI layer, which effectively suppressing dendrite growth. The lithiophilic feature and strengthened physical barrier can also enhance the electrolyte wettability and mechanical/thermal stability. Benefiting from these merits, the cells with NiB@HCR interlayers deliver outstanding electrochemical performances: the Li//Li cell delivers outstanding stability at 1 mA cm −2 with 1 mAh cm −2 over 1000 h; the Li//LiFePO 4 cell with a 11 mg cm −2 delivers a high reversible capacity of 111.7 mAh g −1 at 1C over 200 cycles. This work contributes to providing new insight into the deliberate design, facile fabrication, and performance enhancement mechanisms of lithiophilic boride-based multifunctional interlayer for dendrite-free and stable LMBs.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
界面化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Energy Storage Materials
·
2021
·
IF 17.789
Dan Xie,Huan-Huan Li,Wan-Yue Diao,Ru Jiang,Fang-Yu Tao,Hai-Zhu Sun,Xing-Long Wu,Jing-Ping Zhang
The development of next-generation lithium metal batteries (LMBs) has been chronically hindered by uncontrollable dendrite growth and infinite dimension change of metal Li. Even though the porous carbon skeletons have been deemed as effective hosting materials to prepare low-stress Li metal anode (LMA), the lithiophobic feature and poor spatial regulation for Li nucleation/growth of carbon skeletons render the achievement of high-stable LMA to be challenging. Herein, vertical-aligned SnS 2 nanosheet arrays (SnS 2 NSA) with intrinsic lithiophilic nature, endowed by in situ formed Li 13 Sn 5 via the alloying reaction of SnS 2 , are uniformly decorated on highly flexible carbon foam (SnS 2 NSA@CF) to overcome the encountered issues of ordinary carbon skeletons. The vertical-aligned SnS 2 nanosheet offers enriched lithiophilic surface area, thereby guiding the thin Li-nuclei layer uniformly deposited on nanosheet. Moreover, the continuous Li growth is proceeded on the initial Li-nuclei layer and spatially confined into the nanochannels of nanoarray to eliminate the volume change of LMA. The well-defined nanochannel effectively reduces the local current density and provides open spacing for quick charge transfer kinetics. Accordingly, the sustainable Li utilization with high Coulombic efficiency and highly stable Li plating/stripping with low polarization is achieved, shedding light on the feasibility of SnS 2 NSA for dendrite-free LMA.
研究领域:
材料科学
·
能源存储
·
电池技术
·
纳米技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
De Gao,Shuzhen Deng,Xiaogang Li,Yingxi Zhang,Tuan Lv,Yang He,Weijian Mao,Hui Yang,Jingwei Zhang,Paul K. Chu,Kaifu Huo
Lithium (Li) is a promising anode for high-energy rechargeable batteries but its practical implementation is impeded by uncontrollable dendrite growth and huge volume changes. Herein, we report a dendrite-free Li composite anode with minimum volume change, which is composed of 3D interpenetrating Li and lithiophilic MoN nanosheets prepared by mechanical rolling and folding. The conductive 2D MoN nanosheets boasting excellent lithiophilic affinity and small lattice mismatch with Li induce planar Li plating therefore suppressing dendrite growth along the perpendicular direction. The MoN nanosheets interwoven framwork provides abundant Li accommodation sites and the horizontally plated Li fills the nanoscale gaps between the MoN nanosheets, thus minimizing volume change during cycling. Li 3 N generated in situ by the surface reaction between MoN and Li enhances the ionic conductivity and interface stability. The Li-MoN anode shows a low Li plating overpotential of 15.0 mV and excellent stability for 2,500 h at 1 mA cm −2 . Paired with the LiFePO 4 cathode, the full cell shows 99.7 % Coulombic efficiency and 87.7 % capacity retention after 650 cycles at 170 mA g −1 . The results provide insights into the design of 3D host enabling planar Li plating for dendrite-free and minimum-volume-change Li metal anodes.
研究领域:
材料科学
·
储能
·
电池技术
·
纳米材料
·
电化学
✓ 已验证
DOI
高影响因子
POLYMER
·
2021
·
IF 4.43
Shuzheng Sun,Congcong Li,Mingkai Li,Guoxian Gu,Yanqin Yang,jingde Li,Zisheng Zhang
Functional separator which facilitates the fast transport of Li + but obstructs the permeation of polysulfides is highly required for durable lithium-sulfur (Li-S) batteries. Here, we report a facile approach to developing such functional separator by coating the commercial polypropylene separator with a unique solution-processable polymer featuring both intrinsic microporosity and ion-selective functionality. The polymer is designed with contorted and rigid backbones, which incorporates zwitterionic side chains with both sulfophilic and lithiophilic groups, to produce confined ionic channels for selective ion transport via the chemical interactions with lithium polysulfides. Therefore, when used in the cell configuration, the as-developed functional separator can not only allow the fast Li + conduction but also obstruct the penetration of bulky polysulfides, thus resulting in obvious shuttle suppression as well as the resultant credible and stable sulfur electrochemistry . Thanks to these advantages, the Li-S batteries implementing the as-developed functional separator possess high cycling ability and decent rate performance.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2023
·
IF 17.1
Yuanjian Li,Eryang Mao,Zhiwen Min,Zhao Cai,Zihe Chen,Lin Fu,Xiangrui Duan,Lingyue Wang,Chang Zhang,Ziheng Lu,Wei Liu,Zhi Wei Seh,Yongming Sun
Low-temperature lithium metal batteries are of vital importance for cold-climate condition applications. Their realization, however, is plagued by the extremely sluggish Li+ transport kinetics in the vicinity of Li metal anode at low temperatures. Different from the widely adopted electrolyte engineering, a functional interphase design concept is proposed in this work to efficiently improve the low-temperature electrochemical reaction kinetics of Li metal anodes. As a proof of concept, we design a hybrid polymer-alloy-fluoride (PAF) interphase featuring numerous gradient fluorinated solid-solution alloy composite nanoparticles embedded in a polymerized dioxolane matrix. Systematic experimental and theoretical investigations demonstrate that the hybrid PAF interphase not only exhibits superior lithiophilicity but also provides abundant ionic conductive pathways for homogeneous and fast Li+ transport at the Li–electrolyte interface. With enhanced interfacial dynamics of Li-ion migration, the as-designed PAF-Li anode works stably for 720 h with low voltage hysteresis and dendrite-free electrode morphology in symmetric cell configurations at −40 °C. The full cells with PAF-Li anode display a commercial-grade capacity of 4.26 mAh cm–2 and high capacity retention of 74.7% after 150 cycles at −20 °C. The rational functional interphase design for accelerating ion-transfer kinetics sheds innovative insights for developing high-areal-capacity and long-lifespan lithium metal batteries at low temperatures.
研究领域:
储能材料
·
电化学
·
电池技术
·
材料科学
·
纳米技术
·
表面工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）