Electrode Materials, Electrolytes, and Challenges in Nonaqueous Lithium‐Ion Capacitors

Li, Bing; Zheng, Junsheng; Zhang, Hongyou; Jin, Liming; Yang, Daijun; Lv, Hong; Shen, Chao; Shellikeri, Annadanesh; Zheng, Yiran; Gong, Ruiqi; Zheng, Jim P.; Zhang, Cunman

doi:10.1002/adma.201705670

Cited by 359 publications

(232 citation statements)

References 162 publications

(190 reference statements)

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“…[16] It should be noted that the energy density is influenced by the capacitance and operating voltage according to the equation E = 0.5 CV 2 , which manifests Adv. [16] It should be noted that the energy density is influenced by the capacitance and operating voltage according to the equation E = 0.5 CV 2 , which manifests Adv.…”

Section: Resultsmentioning

confidence: 99%

Metalorganic Quantum Dots and Their Graphene‐Like Derivative Porous Graphitic Carbon for Advanced Lithium‐Ion Hybrid Supercapacitor

Yin

Guo

et al. 2018

Advanced Energy Materials

100

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LICs), also denominated as lithiumion hybrid supercapacitors, which bridge the gap between lithium-ion batteries (LIBs) and supercapacitors (SCs), have been widely investigated in electrical energy storage systems as well as other metal-ion capacitors (K, Na). [2] In common sense, ion absorption/deabsorption occurs in the positive electrode surface whereas the Li + intercalation/deintercalation reaction happens in the negative electrode during charge/discharge process in LICs. The power density is mainly determined by the negative electrode, considering that the absorption/deabsorption process is much faster than the ion intercalation/ deintercalation reaction. [3] Thus, selecting an appropriate anode material plays a predominant role in terms of achieving highperformance LICs system. Among all the reported potential anode materials (e.g., hard carbon, soft carbon, and Li 4 Ti 5 O 12 ), graphite, particularly graphitic mesocarbon microbead (MCMB), is the most prevalent candidate due to its relative high reversible capacity and marvelous plateau capacity below 0.2 V. [4] Commonly, graphite can be obtained through heat treatment at high temperature (above 2000 °C). Nevertheless, the ultrahigh-temperature treatment makes the process energy consumed and the as-obtained graphite possesses poor rate capability, both of which restrict its further application in LICs for higher power density demand. Hard carbon used as anode for LIC shows a slope shape and delivers low plateau capacity. Therefore, it is of great importance to develop an energy-saving method to produce carbon anode that possess both high plateau capacity as well as excellent rate capability. [3b,5] Porous graphitic carbons (PGCs) composed of graphitic phase and amorphous phase reveal their strengths in energy storage fields, benefiting from the high plateau capacity of graphitic phase and the superior rate performance of amorphous phase and porous structure. [2f,4,6] Catalytic graphitization provides an effective precept by structural design to achieve high-graphitization domains surrounded by amorphous phase. [7] Furthermore, the graphitization degree can be easily controlled by adjusting the catalyst and temperature. In order to achieve satisfactory catalytic effect during the graphitization process, Lithium-ion hybrid supercapacitors (LICs) are considered as a promising candidate in energy storage systems. Taking the factor of sluggish kinetics behavior, battery-type anode plays a significant role in improving the performance of LICs. Here, onion-shaped graphene-like derivatives are synthesized via carbonization of metalorganic quantum dots (MQDs) accompanied with in situ catalytic graphitization by reduced metal. Notably MQDs, exhibiting water-soluble character and ultrafine particles (2.5-5.5 nm) morphology, are prepared by the amidation reaction. The carbonized sample exhibits highly graphitic tendency with graphitization degree up to 95.6%, and shows graphene-like porous structure, appropriate amorphous carbon decoration characteristic, as wel...

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Section: Resultsmentioning

confidence: 99%

Metalorganic Quantum Dots and Their Graphene‐Like Derivative Porous Graphitic Carbon for Advanced Lithium‐Ion Hybrid Supercapacitor

Yin

Guo

et al. 2018

Advanced Energy Materials

100

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“…Recently, hybrid lithium‐ion capacitors (LICs) have emerged, which combines the merits of the two systems. LICs are constructed from a capacitor‐type electrode and a lithium ion battery‐type electrode . In this device, the capacitor‐type cathode usually has a relatively low energy density compared to battery‐type anode, therefore, it is highly necessary to develop an advanced cathode material with improved energy density.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Porous Activated Carbon Obtained by a Novel Heating‐Rate‐Induced Method for Lithium‐Ion Capacitor

Sun

Yang

et al. 2019

ChemistrySelect

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Lithium‐ion capacitor (LIC) is an advanced energy storage system due to the combination of high energy density and rapid charge–discharge capability. However, one of the challenges is to improve the specific capacitance and energy density of cathode at high power density. For activated carbon based cathode, the unique hierarchical porous structure and suitable graphitization are crucial for the improvement of the specific capacitance and energy density. Herein, a novel heating‐rate‐induced method is developed to prepare corncob‐derived activated carbons (C‐ACs) with high electrochemical performances. The as‐obtained C‐ACs possess large surface area (1154 m2 g−1), optimal hierarchical porous structure, and suitable graphitization. Particularly, optimal hierarchical porous structure contains not only the high energy storage of the micropores but also the high‐rate performance of the mesopores and macropores. The optimized C‐ACs‐8 electrode exhibits a specific capacitance of 158 F g−1 at 0.5 A g−1, exciting rate performance, and fast charge transfer capability. A lithium‐ion capacitor device based on C‐ACs‐8 cathode delivers a high energy density of 75 Wh kg−1 at power density of 562 W kg−1 and shows a long cycle life with 86.4% capacitance retention after 1000 cycles.

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“…On the other hand, the titanium‐type and niobium‐type anodes have relatively high redox potential, which limits the operation voltage and leads to the low energy density of LICs seriously. The electrochemical kinetic of redox reaction is far from matching the rapid physical desorption process . Therefore, it is crucial to design a novel anode material with simultaneously high rate capability, good cycle stability, and low redox potential.…”

Section: Introductionmentioning

confidence: 99%

Engineering Ultrathin MoS₂ Nanosheets Anchored on N‐Doped Carbon Microspheres with Pseudocapacitive Properties for High‐Performance Lithium‐Ion Capacitors

Jiang

et al. 2019

Small Methods

102

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Lithium‐ion capacitors (LICs) are emerging as one of the most advanced energy storage devices by combining the virtues of both supercapacitor and lithium‐ion battery. The key point of constructing high‐performance LICs is to balance the electrochemical kinetics and capacity mismatch between battery‐type anode and capacitive‐type cathode materials. Herein, a strategy is presented for simultaneous manipulation of a MoS2/N‐doped carbon microspheres anode and hierarchical porous carbon cathode by using polyimide precursor. Owing to the fast lithium diffusion rate, high pseudocapacitive behavior, and expanding the interlayer of the MoS2 composite network architecture, the material can achieve excellent rate capacity and cyclic stability. Hierarchical porous carbon has an ultrahigh specific surface area and superior capacitive behavior. A high‐performance LIC is successfully constructed by using the superior anode and cathode materials. The device can deliver a maximum energy density of 120 Wh kg−1 and keep the capacity retention of 85.5% after 4000 cycles, revealing the competition in advanced energy storage devices. Accordingly, the simultaneous manipulation of metal sulfide and hierarchical porous carbon by the same precursor can be used toward fabricating other ideal electrode structures for energy storage.

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Electrode Materials, Electrolytes, and Challenges in Nonaqueous Lithium‐Ion Capacitors

Cited by 359 publications

References 162 publications

Metalorganic Quantum Dots and Their Graphene‐Like Derivative Porous Graphitic Carbon for Advanced Lithium‐Ion Hybrid Supercapacitor

Metalorganic Quantum Dots and Their Graphene‐Like Derivative Porous Graphitic Carbon for Advanced Lithium‐Ion Hybrid Supercapacitor

Hierarchical Porous Activated Carbon Obtained by a Novel Heating‐Rate‐Induced Method for Lithium‐Ion Capacitor

Engineering Ultrathin MoS₂ Nanosheets Anchored on N‐Doped Carbon Microspheres with Pseudocapacitive Properties for High‐Performance Lithium‐Ion Capacitors

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Electrode Materials, Electrolytes, and Challenges in Nonaqueous Lithium‐Ion Capacitors

Cited by 359 publications

References 162 publications

Metalorganic Quantum Dots and Their Graphene‐Like Derivative Porous Graphitic Carbon for Advanced Lithium‐Ion Hybrid Supercapacitor

Metalorganic Quantum Dots and Their Graphene‐Like Derivative Porous Graphitic Carbon for Advanced Lithium‐Ion Hybrid Supercapacitor

Hierarchical Porous Activated Carbon Obtained by a Novel Heating‐Rate‐Induced Method for Lithium‐Ion Capacitor

Engineering Ultrathin MoS2 Nanosheets Anchored on N‐Doped Carbon Microspheres with Pseudocapacitive Properties for High‐Performance Lithium‐Ion Capacitors

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Engineering Ultrathin MoS₂ Nanosheets Anchored on N‐Doped Carbon Microspheres with Pseudocapacitive Properties for High‐Performance Lithium‐Ion Capacitors