Honeycomb-like N-Doped Carbon Matrix-Encapsulated Co1−xS/Co(PO3)2 Heterostructures for Advanced Lithium-Ion Capacitors DOI Creative Commons
Yutao Liu, Xiaopeng Xie,

Zhaojia Wu

и другие.

Batteries, Год журнала: 2024, Номер 10(10), С. 346 - 346

Опубликована: Сен. 27, 2024

Lithium-ion capacitors (LICs) are emerging as promising hybrid energy storage devices that combine the high densities of lithium-ion batteries (LIBs) with power supercapacitors (SCs). Nevertheless, development LICs is hindered by kinetic imbalances between battery-type anodes and capacitor-type cathodes. To address this issue, honeycomb-like N-doped carbon matrices encapsulating Co1−xS/Co(PO3)2 heterostructures were prepared using a simple chemical blowing-vulcanization process followed phosphorylation treatment (Co1−xS/Co(PO3)2@NC). The Co1−xS/Co(PO3)2@NC features unique heterostructure engineered within honeycomb structures, which efficiently promotes charge transfer at interfaces, alleviates volume expansion Co-based materials, accelerates reaction kinetics. optimal composite demonstrates stable reversible capacity 371.8 mAh g−1 after 800 cycles 1 A g−1, exhibits an excellent rate performance 242.9 even 8 alongside enhanced pseudocapacitive behavior. assembled Co1−xS/Co(PO3)2@NC//AC LIC delivers density 90.47 Wh kg−1 (at 26.28 W kg−1), 504.94 38.31 remarkable cyclic stablitiy 86.3% retention 5000 cycles. This research expected to provide valuable insights into design conversion-type electrode materials for future applications.

Язык: Английский

A simple formula to fabricate high performance lithium metal capacitors DOI

NurulHuda Shah,

JinKiong Ling,

Ghufira

и другие.

Journal of Energy Storage, Год журнала: 2024, Номер 105, С. 114682 - 114682

Опубликована: Ноя. 19, 2024

Язык: Английский

Процитировано

2
Anion Intercalation/De-Intercalation Mechanism Enabling High Energy and Power Densities of Lithium-Ion Capacitors DOI Creative Commons
Yang Zhang, Junquan Lao, Ping Xiao

и другие.

Batteries, Год журнала: 2024, Номер 10(9), С. 296 - 296

Опубликована: Авг. 23, 2024

The growing demands for electrochemical energy storage systems is driving the exploration of novel devices, with lithium-ion capacitors (LICs) emerging as a promising strategy to achieve both high density and fast charge capability. However, low capacitance commercial activated carbon (AC) cathode based on anion absorption/desorption limits LIC applications. Herein, graphite proposed construct an innovative AC (−)//graphite (+) system. functions hosting, allowing reversible intercalation/de-intercalation anions into/from its interlayers. as-designed full cell achieves stable cycling 90.6% capacity retention after 200 cycles at 0.1 A g−1 prolonged lifespan 87.5% 5000 0.5 upper cut-off voltage 5.0 V, yielding average Coulombic efficiency (CE) 99.3%. Moreover, exhibits (>200 Wh kg−1) power 7.7 kW kg−1 (calculated active mass in electrodes). These performances exceed most LICs surface cathodes. This work explores effective electrode revolution assistance chemistry developing densities.

Язык: Английский

Процитировано

1
Manipulating Electrolyte Interface Chemistry Enables High-Performance TiO2 Anode for Sodium-Ion Batteries DOI Creative Commons
Qi Wang, Rui Zhang, Dan Sun

и другие.

Batteries, Год журнала: 2024, Номер 10(10), С. 362 - 362

Опубликована: Окт. 11, 2024

Titanium dioxide (TiO2) has emerged as a candidate anode material for sodium-ion batteries (SIBs). However, their applications still face challenges of poor rate performance and low initial coulomb efficiency (ICE), which are induced by the unstable solid-electrolyte interface (SEI) sluggish Na+ diffusion kinetics in conventional ester-based electrolytes. Herein, inspired electrode/electrolyte interfacial chemistry, tetrahydrofuran (THF) is exploited to construct an advanced electrolyte reveal relationship between improved electrochemical derived SEI film on TiO2 anode. The robust homogeneously distributed F-rich formed THF favors fast charge transfer dynamics excellent stability. As result, endows with greatly ICE (64.5%), exceptional capabilities (186 mAh g−1 at 5.0 A g−1), remarkable cycling This study elucidates control chemistry rational design offers insights into development high-performance long-lifetime

Язык: Английский

Процитировано

1
Honeycomb-like N-Doped Carbon Matrix-Encapsulated Co1−xS/Co(PO3)2 Heterostructures for Advanced Lithium-Ion Capacitors DOI Creative Commons
Yutao Liu, Xiaopeng Xie,

Zhaojia Wu

и другие.

Batteries, Год журнала: 2024, Номер 10(10), С. 346 - 346

Опубликована: Сен. 27, 2024

Lithium-ion capacitors (LICs) are emerging as promising hybrid energy storage devices that combine the high densities of lithium-ion batteries (LIBs) with power supercapacitors (SCs). Nevertheless, development LICs is hindered by kinetic imbalances between battery-type anodes and capacitor-type cathodes. To address this issue, honeycomb-like N-doped carbon matrices encapsulating Co1−xS/Co(PO3)2 heterostructures were prepared using a simple chemical blowing-vulcanization process followed phosphorylation treatment (Co1−xS/Co(PO3)2@NC). The Co1−xS/Co(PO3)2@NC features unique heterostructure engineered within honeycomb structures, which efficiently promotes charge transfer at interfaces, alleviates volume expansion Co-based materials, accelerates reaction kinetics. optimal composite demonstrates stable reversible capacity 371.8 mAh g−1 after 800 cycles 1 A g−1, exhibits an excellent rate performance 242.9 even 8 alongside enhanced pseudocapacitive behavior. assembled Co1−xS/Co(PO3)2@NC//AC LIC delivers density 90.47 Wh kg−1 (at 26.28 W kg−1), 504.94 38.31 remarkable cyclic stablitiy 86.3% retention 5000 cycles. This research expected to provide valuable insights into design conversion-type electrode materials for future applications.

Язык: Английский

Процитировано

0