ZnO/ZnS heterostructure with enhanced interfacial lithium absorption for robust and large-capacity energy storage

Dong, Chenlong; Zhang, Xilin; Dong, Wujie; Lin, Xueyu; Cheng, Yuan; Tang, Yufeng; Zhao, Siwei; Li, Guobao; Huang, Fu Qiang

doi:10.1039/d2ee00050d

Cited by 32 publications

(21 citation statements)

References 58 publications

(85 reference statements)

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“…Under the voltage range of 3.0 – 0.5 V (safe cutoff voltage for Al foil, Figure S5, Supporting Information), the specific capacity B‐FeO x at 0.5C is ≈710 mAh g −1 , ≈76% of that in 3.0 – 0.01 V. Even at the high rate of 20 and 50 C, it can also reach up to ≈440 and ≈200 mAh g −1 . Such excellent rate capability is much superior to the most reported results, [ 14–38 ] as shown in Figure 2C,D. At large current density of 5C, the capacity maintain stable with the retention ≈100% even after 1000 cycles under both 0.01 – 3 V and 0.5 – 3 V, reaching the demands of commercial application, as shown in Figure 2E.…”

Section: Resultsmentioning

confidence: 61%

Nanoscale Borate Coating Network Stabilized Iron Oxide Anode for High‐Energy‐Density Bipolar Lithium‐Ion Batteries

Dong

Zhao

Cai

et al. 2023

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Advanced lithium-ion batteries (LIBs) for applications in electric vehicles, energy storage, and high-power devices call for novel designs of the electrochemical materials and the cell architecture. Among the candidates are bipolar LIBs which have an advanced stack configuration, simplify the cell components, and hold the promise to revolute the integrated cell design in the future. [1][2][3] In typical bipolar LIBs, cathode and anode slurries consisting of active materials, conductive carbon, and binders are separately coated on two sides of a current collector so that n (≥2) units of such can be serially connected to assemble a high-voltage cell. The design minimizes the internal resistive loss between neighboring cells in a stack, offers uniform current and field distributions, and allows high-power cell operations. It also minimizes the usage of inactive cell components such as those for housing and connecting, thus increases the gravimetric and volumetric energy density and lowers the cost compared to conventional LIB design. [3] Therefore, bipolar LIBs are more competitive in many applications, e.g., in electric vehicles which require high-voltage battery packs with 300-500 V working voltages. [4,5] As the preferred current collector in bipolar LIBs is aluminum foil (which has a lithiation voltage of ≈0.3 V vs Li/ Li + ), low-redox-voltage anodes such as graphite, carbon-silicon composite, and lithium metal cannot be used, and the conventional choice is lithium titanate Li 4 Ti 5 O 12 with a relatively low capacity (theoretical capacity: 175 mAh g −1 ). [3,5] It is therefore the goal of the present study to develop a cheap high-capacity anode with a suitable redox potential and stable cycling performance for high-energy-density bipolar LIBs. We chose conversion-type iron oxide FeO x because of its non-toxicity, earth abundance, low processing cost, high crystal density (5.24 g cm −3 for Fe 2 O 3 and 5.18 g cm −3 for Fe 3 O 4 , compared to 2.16 g cm −3 for graphite, 2.33 g cm −3 for Si, and 0.534 g cm −3 for Li), proper redox potential (lower cutoff voltage: 0.5 V vs Li/Li + , average delithiation voltage: 1.5 V vs Li/Li + ), and high capacity (the theoretical capacity is 1007 mAh g −1 for Fe 2 O 3 and 926 mAh g −1 for Fe 3 O 4 ). [6][7][8][9] Despite of the high capacity, FeO x like other conversion-type TM oxides, has poor cycling stability High-capacity metal oxides based on non-toxic earth-abundant elements offer unique opportunities as advanced anodes for lithium-ion batteries (LIBs).But they often suffer from large volumetric expansion, particle pulverization, extensive side reactions, and fast degradations during cycling. Here, an easy synthesis method is reported to construct amorphous borate coating network, which stabilizes conversion-type iron oxide anode for the highenergy-density semi-solid-state bipolar LIBs. The nano-borate coated iron oxide anode has high tap density (1.6 g cm −3 ), high capacity (710 mAh g −1 between 0.5 -3.0 V, vs Li/Li + ), good rate performance (200 mAh g −1 at 50 C), and...

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Section: Resultsmentioning

confidence: 61%

Nanoscale Borate Coating Network Stabilized Iron Oxide Anode for High‐Energy‐Density Bipolar Lithium‐Ion Batteries

Dong

Zhao

Cai

et al. 2023

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“…These conclusions suggest that the establishment of the phase junction region facilitates higher adsorption enthalpy of ILs to achieve excellent electrochemical performance. [ 50 ]…”

Section: Resultsmentioning

confidence: 99%

Gallium Nitride Based Electrode for High‐Temperature Supercapacitors

Wang

et al. 2023

Advanced Science

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Gallium nitride (GaN) single crystal, as the representative of wide‐band semiconductors, has great prospects for high‐temperature energy storage, of its splendid power output, robust temperature stability, and superior carrier mobility. Nonetheless, it is an essential challenge for GaN‐based devices to improve energy storage. Herein, an innovative strategy is proposed by constructing GaN/Nickel cobalt oxygen (NiCoO2 ）heterostructure for enhanced supercapacitors (SCs). Benefiting from the synergy effect between the porous GaN network as a highly conductive skeleton and the NiCoO2 with massive active sites. The GaN/NiCoO2 heterostructure‐based SCs with ion liquids electrolyte are assembled and delivered an impressive energy density of 15.2 µWh cm−2 and power density, as well as superior service life at 130 °C. The theoretical calculation further explains that the reason for the energy storage enhancement of the GaN/NiCoO2 is due to the presence of the built‐in electric fields. This work offers a novel perspective for meeting the practical application of GaN‐based energy storage devices with exceptional performance capable of operation under high‐temperature environments.

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“…log(i) = log(a) + b log(v)), the b value can be calculated to infer the sodium storage behaviours. 44,45 The value b = 0.5 indicates the diffusion-controlled sodium storage mechanism, while b = 1.0 depicts the surface capacitance-controlled behavior. In Fig.…”

Section: Dalton Transactions Papermentioning

confidence: 99%

Carbon coated heterojunction CoSe₂/Sb₂Se₃ nanospheres for high-efficiency sodium storage

Meng

Zhang

et al. 2023

Dalton Trans.

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ZnO/ZnS heterostructure with enhanced interfacial lithium absorption for robust and large-capacity energy storage

Abstract: Heterostructure construction, especially for anodes, is an effective strategy to promote electron transfer and improve surface reaction dynamics, thus achieving high performance in lithium ion batteries. Herein, in-situ partial conversion...

Cited by 32 publications

References 58 publications

Nanoscale Borate Coating Network Stabilized Iron Oxide Anode for High‐Energy‐Density Bipolar Lithium‐Ion Batteries

Nanoscale Borate Coating Network Stabilized Iron Oxide Anode for High‐Energy‐Density Bipolar Lithium‐Ion Batteries

Gallium Nitride Based Electrode for High‐Temperature Supercapacitors

Carbon coated heterojunction CoSe₂/Sb₂Se₃ nanospheres for high-efficiency sodium storage

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ZnO/ZnS heterostructure with enhanced interfacial lithium absorption for robust and large-capacity energy storage

Abstract: Heterostructure construction, especially for anodes, is an effective strategy to promote electron transfer and improve surface reaction dynamics, thus achieving high performance in lithium ion batteries. Herein, in-situ partial conversion...

Cited by 32 publications

References 58 publications

Nanoscale Borate Coating Network Stabilized Iron Oxide Anode for High‐Energy‐Density Bipolar Lithium‐Ion Batteries

Nanoscale Borate Coating Network Stabilized Iron Oxide Anode for High‐Energy‐Density Bipolar Lithium‐Ion Batteries

Gallium Nitride Based Electrode for High‐Temperature Supercapacitors

Carbon coated heterojunction CoSe2/Sb2Se3 nanospheres for high-efficiency sodium storage

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Carbon coated heterojunction CoSe₂/Sb₂Se₃ nanospheres for high-efficiency sodium storage