Cellulose‐based Supercapacitors: Material and Performance Considerations

Wang, Zhaohui; Tammela, Petter; Strömme, Maria; Nyholm, Leif

doi:10.1002/aenm.201700130

Cited by 198 publications

(175 citation statements)

References 155 publications

Supporting

Mentioning

171

Contrasting

Order By: Relevance

“…6d, the specific capacitance of CS-DAC-C (derived from the GCD curves) was up to 242 F g -1 at a current density of 1 A g -1 , which was much higher than those obtained for DAC-C (181 F g -1 ) and LC-DAC-C (180 F g -1 ), and comparable to results previously reported for cellulose-based carbon electrodes (Chen et al 2014a;Jiang et al 2015Jiang et al , 2016Li et al 2016c). The higher capacitance of CS-DAC-C compared to LC-DAC-C was probably the result of the higher SSA of the former (Li et al 2016a, b;Wang et al 2017). The fact that the DAC-C electrode, which had the highest SSA of the samples under study, exhibited a lower capacity than CS-DAC-C indicates that the doped heteroatoms contributed more to the capacitive behavior than the SSA.…”

Section: Charge Storage Propertiessupporting

confidence: 66%

Carbonized cellulose beads for efficient capacitive energy storage

et al. 2018

Self Cite

View full text Add to dashboard Cite

Natural biomaterials, including polysaccharides and amino acids, provide a sustainable source of functional carbon materials for electric energy storage applications. We present a one-pot reductive amination process to functionalize 2,3-dialdehyde cellulose (DAC) beads with chitosan and L-cysteine to provide single (N)-and dual (N/S)-doped materials. The functionalization enables the physicochemical properties of the materials to be tailored and can provide carbon precursors with heteroatom doping suitable for energy storage applications. Scanning electron microscopy, Fourier transform infrared spectroscopy and thermogravimetric analysis were used to characterize the changes to the beads after functionalization and carbonization. The results of X-ray photoelectron spectroscopy and energy-dispersive X-ray spectroscopy verified that the doping was effective, while the nitrogen sorption isotherms and pore-size distributions of the carbonized beads showed the effects of doping with different hierarchical porosities. In the electrochemical experiments, three kinds of carbon beads [pyrolyzed from DAC, chitosan-crosslinked DAC (CS-DAC) and L-cysteinefunctionalized DAC] were used as electrode materials. Electrodes of carbonized CS-DAC beads had a specific capacitance of up to 242 F g -1 at a current density of 1 A g -1 . These electrodes maintained a capacitance retention of 91.5% after 1000 charge/ discharge cycles, suggesting excellent cycling stability. The results indicate that reductive amination of DAC is an effective route for heteroatom doping of carbon materials to be used as electrode active materials for energy storage.

show abstract

Section: Charge Storage Propertiessupporting

confidence: 66%

Carbonized cellulose beads for efficient capacitive energy storage

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…Despite great success in the development of high‐performance electrodes based on a CNT or Graphene conductive percolation network, the limited production capacity and high cost of these 1D and 2D carbon additives make the electrodes less competitive than today's commercialized products. From the view point of production cost and capacity, cellulose, the most abundant natural polymer on earth, is highly competitive and attractive as a 1D building block for constructing thick electrodes . Recently, Kuang et al reported a highly conductive hybrid fiber based on abundantly available cellulose nanofibers (CNFs) and commercialized CBs as a 1D building block for constructing free‐standing thick electrodes ( Figure 8 a) .…”

Section: Integrated Electrode and Current Collectormentioning

confidence: 99%

Thick Electrode Batteries: Principles, Opportunities, and Challenges

Kuang

Chen

Kirsch

et al. 2019

Advanced Energy Materials

487

413

View full text Add to dashboard Cite

Recent reviews on LBs have provided a good overview of the developments of high energy density LBs based on diverse battery chemistries. [3][4][5][6] It is believed that the energy density of current LBs can be improved up to 300-350 Wh kg −1 in a short time by using high-nickel (Ni) content cathodes, silicon (Si) dominant anodes, and higher voltage electrolytes, but further progress is needed to achieve an acceptable lifetime for practical application. [7] In regards to long term goals, continued research and development (R&D) of next-generation LBs is necessary to meet the Battery500 Project target of a cell-level specific energy of 500 Wh kg −1 , [8] which necessitates a combination of both innovative battery chemistries (such as lithium (Li)-sulfur (S), Li-O 2 , Li-CO 2 , and so on), and cell configurations (improved active material ratio and cell integration). [9] However, the majority of current research efforts are dedicated to the R&D of battery materials while battery configurational design is relatively overlooked. Interestingly, with the progress in the development of water-in-salt electrolyte and the corresponding battery chemistry, aqueous LIBs are also possible to meet the Battery 500 Project target. A representative work is the aqueous LIBs that has been recently reported by Yang et al. which achieves a stable operation potential of 4.2 V and energy density of 460 Wh kg −1 . [10] It is great progress but worthy noting that the energy density calculation is based on the mass of anode and cathode. When the mass of the electrolyte is included, the full-cell energy density is dropped to 304 Wh kg −1 , revealing the important role of battery configurational design.Structural engineering provides a feasible and universal way to further improve the energy density of LBs without changing the fundamental battery chemistries. Since the battery's energy only comes from the electrically active materials in the electrodes, the core principle for the novel structural design of batteries is to minimize the ratio of inactive components while maintaining or improving battery performance per mass or volume of active material. Common strategies include the optimization of battery packaging with thinner, more robust materials, the reduction of electrode porosity with a higher packing density and increased electrolyte uptake, and the utilization of thick electrodes. The first is relatively hard to improve in a short time and would require a breakthrough in battery packaging materials with carefully evaluated cost and safety parameters. As for the reduction of electrolyte, it is also difficult toThe ever-growing portable electronics and electric vehicle markets heavily influence the technological revolution of lithium batteries (LBs) toward higher energy densities for longer standby times or driving range. Thick electrode designs can substantially improve the electrode active material loading by minimizing the inactive component ratio at the device level, providing a great platform for enhancing the overall energy densi...

show abstract

“…It is worth mentioning that EDLC electrode performance depends on the type of cellulose used in the capacitors. According to Wang et al [42], cellulose microfibers (CMFs) are used to obtain electrodes with relatively low active mass loadings. In contrast, nanocellulose fiber (NCF)-and cellulose nanocrystal (CNC)-based electrodes indicate relatively high active mass loadings.…”

Section: Introductionmentioning

confidence: 99%

Electrodes and hydrogel electrolytes based on cellulose: fabrication and characterization as EDLC components

Kasprzak

Stępniak

Galiński

2018

J Solid State Electrochem

View full text Add to dashboard Cite

In the present work, the cellulose-based materials were manufactured and used as components of electrochemical double layer capacitors (EDLCs). The preparation method of cellulose membranes as well as composite electrodes containing cellulose as a binder was presented. These materials were prepared using for the first time ionic liquid/dimethyl sulfoxide (IL/DMSO) mixture solvent. Obtained components displayed a uniform structure, thermal stability, and good electrochemical properties. The electrochemical performances of these materials were studied in 2-electrode EDLC cells by common electrochemical techniques as cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), and electrochemical impedance spectroscopy (EIS). The composite electrodes were investigated in three types of electrolytes: aqueous, organic, and ionic liquids. The cellulose membranes were, however, soaked in an aqueous electrolyte and tested as hydrogel polymer electrolytes. All investigated materials show high efficiency in terms of specific capacity. The studied cellulose-based capacitors exhibited specific capacitance values in the range of 20-22 F g −1 , depending on the type of applied electrolyte.

show abstract

Cellulose‐based Supercapacitors: Material and Performance Considerations

Cited by 198 publications

References 155 publications

Carbonized cellulose beads for efficient capacitive energy storage

Carbonized cellulose beads for efficient capacitive energy storage

Thick Electrode Batteries: Principles, Opportunities, and Challenges

Electrodes and hydrogel electrolytes based on cellulose: fabrication and characterization as EDLC components

Contact Info

Product

Resources

About