Achieving long-life Prussian blue analogue cathode for Na-ion batteries via triple-cation lattice substitution and coordinated water capture

Xie, Bingxing; Zuo, Pengjian; Wang, Liguang; Wang, Jiajun; Huo, Hua; He, Meizi; Shu, Jie; Li, Haifeng; Lou, Shuaifeng; Yin, Geping

doi:10.1016/j.nanoen.2019.04.059

Cited by 164 publications

(113 citation statements)

References 43 publications

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“…To cope with the drawbacks of low specific capacity, intrinsic water, and vacancies in PBA crystal structures, PBAs with high crystallinity, high Na content, low vacancies, and low coordinate water content are expected to offer enhanced electrochemical performance. The improvement strategies could include suitable composition design, morphology control, quality control, and dehydration treatment together with surface modification 138–142. It is anticipated that nanostructured PBAs could be prepared with large surface area in academic research 143,144.…”

Section: Which Is Better For Commercialization?mentioning

confidence: 99%

The Cathode Choice for Commercialization of Sodium‐Ion Batteries: Layered Transition Metal Oxides versus Prussian Blue Analogs

Liu

Chen

et al. 2020

Adv Funct Materials

361

267

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With the unprecedentedly increasing demand for renewable and clean energy sources, the sodium‐ion battery (SIB) is emerging as an alternative or complementary energy storage candidate to the present commercial lithium‐ion battery due to the abundance and low cost of sodium resources. Layered transition metal oxides and Prussian blue analogs are reviewed in terms of their commercial potential as cathode materials for SIBs. The recent progress in research on their half cells and full cells for the ultimate application in SIBs are summarized. In addition, their electrochemical performance, suitability for scaling up, cost, and environmental concerns are compared in detail with a brief outlook on future prospects. It is anticipated that this review will inspire further development of layered transition metal oxides and Prussian blue analogs for SIBs, especially for their emerging commercialization.

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Section: Which Is Better For Commercialization?mentioning

confidence: 99%

The Cathode Choice for Commercialization of Sodium‐Ion Batteries: Layered Transition Metal Oxides versus Prussian Blue Analogs

Liu

Chen

et al. 2020

Adv Funct Materials

361

267

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“…Interestingly, the existence of Na‐rich rhombohedral phase can be further verified by the splitting peaks at around 24° and 39° in the patterns of the sample discharging to 2.0 V. Through the patterns of all samples, the peak splitting and merging can be clearly observed due to the cubic‐rhombohedral phase transition, as schematically shown in Figure c. [ 39,40 ] Moreover, as shown in Figure 5c,d, FeHCFe nanoframes show less expansion of the crystal structure during charging up to 4.2 V, which can be confirmed by the shift angle of the (200) peak. 2θ angle of the peak of FeHCFe nanoframes electrode was increased by 0.2° upon further charging up to 4.2 V compared with the first discharging to 2.0 V, which is smaller than that of the FeHCFe nanocubes electrode (0.24°).…”

Section: Resultsmentioning

confidence: 80%

Stepwise Hollow Prussian Blue Nanoframes/Carbon Nanotubes Composite Film as Ultrahigh Rate Sodium Ion Cathode

Wan

Xie²,

Zhang

et al. 2020

Adv Funct Materials

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Prussian blue and its analogues (PBAs) have been proposed as promising cathode materials for sodium‐ion batteries (SIBs) due to high theoretical capacity and low cost, but they often suffer from poor electronic conductivity and structural instability. Herein, a stepwise hollow cubic framework structure is first designed and a hybridized hierarchical film synthesized from single‐crystal PBA nanoframes/carbon nanotubes (CNTs) composite is demonstrated as a binder‐free ultrahigh rate sodium ion cathode. This hierarchical configuration offers improved tolerance for lattice expansion, reduced sodium ion diffusion path, enhanced electronic conductivity, and optimized redox reactions, thereby achieving the excellent rate capability, high specific capacity, and long cycle life. As expected, the developed FeHCFe nanoframes/CNTs electrode film exhibits a super high rate capacity of 149.2 mAh g−1 at 0.1C and 35.0 mAh g−1 at 100C. Moreover, it displays an excellent cycling stability with about 92% capacity retention at 5C after 500 cycles. This work will pave a new way to engineer advanced electrode materials for ultrahigh rate SIBs.

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“…For comparison, the rate capability of FeHCF NDs/rGO (Fig. 4d) is superior to other state-of-the-art PBA-based cathodes, 25,[34][35][36][37][38][39][40][41] especially at high current densities.…”

Section: Electrochemical Reaction Kineticsmentioning

confidence: 95%

Job-Sharing Charge Storage in a Mixed Ion/Electron Conductor Electrode towards Ultrafast Na Storage

Wang

Zhang

et al. 2020

Preprint

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For the cathode materials potentially available for high power capability, reducing their particle size can improve the bulk ionic conductivity due to reduced ion diffusion length, and exploiting new reaction mechanism must be fundamentally advantageous. However, other issues such as synthesis difficulty, poor charge storage stability, and capacity decay can emerge. To simultaneously address these issues, in this work, we first find solid-solid interfacial storage for the ultrafine insertion cathode materials in the space-charge region of a mixed ion/electron conductor through the so-called “job-sharing” mechanism. This mechanism shows that electrons and ions can be stored in the different phases around the interface and transport only inside there, which looks thermodynamically distinct from most of conventional charge storage mechanisms in terms of the relationship between charge storage and cell voltage. The insertion cathodes governed by the “job-sharing” mechanism thus exhibit the outstanding performances with high capacity, fast kinetics, and stable cyclability. Herein, the inverse conceptual compositing between ionic conductor and electronic conductor to harness the size effect offers a potential research direction for not only electrode design in high-power batteries, but also other electrochemical potential applications such as solid-state electrolytes and so on.

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Achieving long-life Prussian blue analogue cathode for Na-ion batteries via triple-cation lattice substitution and coordinated water capture

Cited by 164 publications

References 43 publications

The Cathode Choice for Commercialization of Sodium‐Ion Batteries: Layered Transition Metal Oxides versus Prussian Blue Analogs

The Cathode Choice for Commercialization of Sodium‐Ion Batteries: Layered Transition Metal Oxides versus Prussian Blue Analogs

Stepwise Hollow Prussian Blue Nanoframes/Carbon Nanotubes Composite Film as Ultrahigh Rate Sodium Ion Cathode

Job-Sharing Charge Storage in a Mixed Ion/Electron Conductor Electrode towards Ultrafast Na Storage

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