Energy storage materials, Год журнала: 2024, Номер 71, С. 103647 - 103647
Опубликована: Июль 15, 2024
Язык: Английский
Chemical Society Reviews, Год журнала: 2024, Номер 53(13), С. 7202 - 7298
Опубликована: Янв. 1, 2024
The growing global energy demand necessitates the development of renewable solutions to mitigate greenhouse gas emissions and air pollution. To efficiently utilize yet intermittent sources such as solar wind power, there is a critical need for large-scale storage systems (EES) with high electrochemical performance. While lithium-ion batteries (LIBs) have been successfully used EES, surging price, coupled limited supply crucial metals like lithium cobalt, raised concerns about future sustainability. In this context, potassium-ion (PIBs) emerged promising alternatives commercial LIBs. Leveraging low cost potassium resources, abundant natural reserves, similar chemical properties potassium, PIBs exhibit excellent ion transport kinetics in electrolytes. This review starts from fundamental principles structural regulation PIBs, offering comprehensive overview their current research status. It covers cathode materials, anode electrolytes, binders, separators, combining insights full battery performance, degradation mechanisms,
Язык: Английский
Процитировано
146
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(17)
Опубликована: Март 5, 2024
Abstract Layered transition metal oxides are extensively considered as appealing cathode candidates for potassium‐ion batteries (PIBs) due to their abundant raw materials and low cost, but further implementations limited by slow dynamics impoverished structural stability. Herein, a layered composite having P2 P3 symbiotic structure is designed synthesized realize PIBs with large energy density long‐term cycling The unique intergrowth of phases in the obtained oxide plainly characterized X‐ray diffraction refinement, high‐angle annular dark field bright field‐scanning transmission electron microscopy at atomic resolution, Fourier transformation images. synergistic effect two this P2/P3 well demonstrated K + intercalation/extraction process. as‐prepared can present discharge capacity remarkable 321 Wh kg −1 also manifest excellent preservation after 600 cycles uptake/removal.
Язык: Английский
Процитировано
43
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(29)
Опубликована: Май 6, 2024
Abstract Current potassium‐ion batteries (PIBs) are limited in safety and lifetime owing to the lack of suitable electrolyte solutions. To address these issues, herein, we report an innovative non‐flammable design strategy that leverages optimal moderate solvation phosphate‐based solvent which strikes a balance between capability salt dissociation ability, leading superior electrochemical performance. The formulated simultaneously exhibits advantages low concentration (only 0.6 M), viscosity, high ionic conductivity, oxidative stability, safety. Our also promotes formation self‐limiting inorganic‐rich interphases at anode surface, alongside robust cathode‐electrolyte interphase on iron‐based Prussian blue analogues, mitigating electrode/electrolyte side reactions preventing Fe dissolution. Notably, PIBs employing our exhibit exceptional durability, with 80 % capacity retention after 2,000 cycles high‐voltage 4.2 V coin cell. Impressively, larger scale pouch cell, it maintains over 81 its initial 1,400 1 C‐rate average Coulombic efficiency 99.6 %. This work represents significant advancement toward realization safe, sustainable, high‐performance PIBs.
Язык: Английский
Процитировано
34
Angewandte Chemie, Год журнала: 2024, Номер 136(29)
Опубликована: Май 6, 2024
Abstract Current potassium‐ion batteries (PIBs) are limited in safety and lifetime owing to the lack of suitable electrolyte solutions. To address these issues, herein, we report an innovative non‐flammable design strategy that leverages optimal moderate solvation phosphate‐based solvent which strikes a balance between capability salt dissociation ability, leading superior electrochemical performance. The formulated simultaneously exhibits advantages low concentration (only 0.6 M), viscosity, high ionic conductivity, oxidative stability, safety. Our also promotes formation self‐limiting inorganic‐rich interphases at anode surface, alongside robust cathode‐electrolyte interphase on iron‐based Prussian blue analogues, mitigating electrode/electrolyte side reactions preventing Fe dissolution. Notably, PIBs employing our exhibit exceptional durability, with 80 % capacity retention after 2,000 cycles high‐voltage 4.2 V coin cell. Impressively, larger scale pouch cell, it maintains over 81 its initial 1,400 1 C‐rate average Coulombic efficiency 99.6 %. This work represents significant advancement toward realization safe, sustainable, high‐performance PIBs.
Язык: Английский
Процитировано
16
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(35)
Опубликована: Июнь 13, 2024
Abstract Metal hexacyanoferrates (HCFs) are regarded as promising cathode materials for potassium‐ion batteries (PIBs) on account of their low cost and high energy density. However, the difficult‐to‐remove [Fe(CN) 6 ] vacancies crystal water lead to structural instability capacity deterioration well stereotype poor thermostability conventional HCFs. Herein, we report (100) face‐oriented potassium magnesium hexacyanoferrate (KMgHCF) nanoplates with crystallinity, enabling up 550 °C, high‐temperature carbon coating elimination. The as‐obtained KMgHCF/C exhibit superior storage properties, including a large reversible 84.6 mAh g −1 , voltage plateau 3.87 V, excellent long‐term cycling performance over 15000 cycles rate capability at 5 A . unprecedented stability is attributed synergistic effect highly two‐phase reaction, no water, specially exposed steady surface, protective coating. This work provides new material selection modification strategy practical application HCFs in PIBs.
Язык: Английский
Процитировано
16
Energy storage materials, Год журнала: 2024, Номер 68, С. 103371 - 103371
Опубликована: Март 27, 2024
Язык: Английский
Процитировано
15
Energy storage materials, Год журнала: 2024, Номер 71, С. 103399 - 103399
Опубликована: Апрель 10, 2024
Язык: Английский
Процитировано
14
Science Bulletin, Год журнала: 2024, Номер unknown
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
13
Chemical Engineering Journal, Год журнала: 2024, Номер 484, С. 149574 - 149574
Опубликована: Фев. 12, 2024
Язык: Английский
Процитировано
11
Energy & environment materials, Год журнала: 2024, Номер 7(5)
Опубликована: Апрель 24, 2024
KVPO 4 F with excellent structural stability and high operating voltage has been identified as a promising cathode for potassium‐ion batteries (PIBs), but limits in sluggish ion transport severe volume change cause insufficient potassium storage capability. Here, high‐energy low‐strain composite assisted by multifunctional K 2 C O electrode stabilizer is exquisitely designed. Systematical electrochemical investigations demonstrate that this can deliver remarkable energy density up to 530 Wh kg −1 142.7 mAh g of reversible capacity at 25 mA , outstanding rate capability 70.6 1000 decent cycling stability. Furthermore, slight (~5%) increased interfacial thin even cathode–electrolyte interphase be observed through situ ex characterizations, which are attributed the synergistic effect from compensation carbon deposition self‐sacrificing additive. Moreover, full cells manifest significant improvement This work demonstrates positive impact additive on comprehensive enhancement, especially activation high‐voltage plateau provides an efficient strategy enlighten design other cathodes advanced batteries.
Язык: Английский
Процитировано
10