Amorphous Carbon-Derived Nanosheet-Bricked Porous Graphite as High-Performance Cathode for Aluminum-Ion Batteries

Zhang, Chunyan; He, Rui; Zhang, Jichen; Hu, Yang; Wang, Zhiyong; Jin, Xianbo

doi:10.1021/acsami.8b07590

Cited by 66 publications

(46 citation statements)

References 37 publications

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“…[39] Therefore, although the surface area and porosity are clearly beneficial in improving the electrochemical performance (as seen by the 251 mAh g −1 capacity for RGO_CPD [24] RGO_VAC [24] MTC31 [40] ZTC [40] Total surface area [m 2 ZTC vs 163 mAh g −1 for RGO_CPD), the pore size distribution (micro/meso) seems to be another prominent variable to consider. [47,48] In the case of RGO_CPD, [24] the network of the predominantly 20 nm wide pores facilitates the movement of the large chloroaluminate ions and the proper wetting of the electrode, resulting in a lower inactive volume content of the electrode. [49]…”

Section: Resultsmentioning

confidence: 99%

Mesoporous Reduced Graphene Oxide as a High Capacity Cathode for Aluminum Batteries

Smajic

Alazmi

Batra

et al. 2018

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Research in the field of aluminum batteries has focused heavily on electrodes made of carbonaceous materials. Still, the capacities reported for these multivalent systems remain stubbornly low. It is believed that a high structural quality of graphitic carbons and/or specific surface areas of >1000 m2 g‐1 are key factors to obtain optimal performance and cycling stability. Here an aluminum chloride battery is presented in which reduced graphene oxide (RGO) powder, dried under supercritical conditions, is used as the active cathode material and niobium foil as the current collector. With a specific surface area of just 364 m2 g‐1, the RGO enables a gravimetric capacity of 171 mAh g‐1 at 100 mA g‐1 and remarkable stability over a wide range of current densities (<15% decrease over 100 cycles in the interval 100–20000 mA g‐1). These properties, up to now achieved only with much larger surface area materials, result from the cathode's tailored mesoporosity. The 20 nm wide mesopores facilitate the movement of the chloroaluminate ions through the RGO, effectively minimizing the inactive mass content of the electrode. This more than compensates for the ordinary micropore volume of the graphene powder.

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Section: Resultsmentioning

confidence: 99%

Mesoporous Reduced Graphene Oxide as a High Capacity Cathode for Aluminum Batteries

Smajic

Alazmi

Batra

et al. 2018

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“…The most researched component for aluminum-ion batteries is the cathode. The research can be divided into six groups based on the type of material used for the cathode: metal oxides [127][128][129][130][131][132], metal sulfides [133][134][135][136][137], carbon [138,139], metal selenides [14,140] metal phosphides [141,142] and metal phosphite [143]. Here we highlight those works that focus on the function of the material.…”

Section: Aluminum-ion Batteriesmentioning

confidence: 99%

Beyond Lithium-Based Batteries

et al. 2020

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We discuss the latest developments in alternative battery systems based on sodium, magnesium, zinc and aluminum. In each case, we categorize the individual metals by the overarching cathode material type, focusing on the energy storage mechanism. Specifically, sodium-ion batteries are the closest in technology and chemistry to today’s lithium-ion batteries. This lowers the technology transition barrier in the short term, but their low specific capacity creates a long-term problem. The lower reactivity of magnesium makes pure Mg metal anodes much safer than alkali ones. However, these are still reactive enough to be deactivated over time. Alloying magnesium with different metals can solve this problem. Combining this with different cathodes gives good specific capacities, but with a lower voltage (<1.3 V, compared with 3.8 V for Li-ion batteries). Zinc has the lowest theoretical specific capacity, but zinc metal anodes are so stable that they can be used without alterations. This results in comparable capacities to the other materials and can be immediately used in systems where weight is not a problem. Theoretically, aluminum is the most promising alternative, with its high specific capacity thanks to its three-electron redox reaction. However, the trade-off between stability and specific capacity is a problem. After analyzing each option separately, we compare them all via a political, economic, socio-cultural and technological (PEST) analysis. The review concludes with recommendations for future applications in the mobile and stationary power sectors.

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“…These results demonstrated the potential of RABs for practical applications. To improve the performance of RABs, several kinds of cathode, including modified graphites,10–12 graphene nanosheets,13–15 carbon‐based materials,16–18 transition metal oxides,19–21 and metal sulfides,22–25 have been developed. However, the IL electrolyte has received much less attention.…”

Section: Introductionmentioning

confidence: 99%

“…These results demonstrated the potential of RABs for practical applications. To improve the performance of RABs, several kinds of cathode, including modified graphites, [10][11][12] graphene nanosheets, [13][14][15] carbon-based materials, [16][17][18] transition metal oxides, [19][20][21] and metal sulfides, [22][23][24][25] have been developed. However, the IL electrolyte has received much less attention.An electrolyte plays a crucial role in determining the battery charge-discharge behavior, cycling stability, and safety properties.…”

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confidence: 99%

A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries

Patra

et al. 2020

Adv Funct Materials

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Rechargeable aluminum batteries (RABs) are extensively developed due to their cost‐effectiveness, eco‐friendliness, and low flammability and the earth abundance of their electrode materials. However, the commonly used RAB ionic liquid (IL) electrolyte is highly moisture‐sensitive and corrosive. To address these problems, a 4‐ethylpyridine/AlCl3 IL is proposed. The effects of the AlCl3 to 4‐ethylpyridine molar ratio on the electrode charge–discharge properties are systematically examined. A maximum graphite capacity of 95 mAh g−1 is obtained at 25 mA g−1. After 1000 charge–discharge cycles, ≈85% of the initial capacity can be retained. In situ synchrotron X‐ray diffraction is employed to examine the electrode reaction mechanism. In addition, low corrosion rates of Al, Cu, Ni, and carbon‐fiber paper electrodes are confirmed in the 4‐ethylpyridine/AlCl3 IL. When opened to the ambient atmosphere, the measured capacity of the graphite cathode is only slightly lower than that found in a N2‐filled glove box; moreover, the capacity retention upon 100 cycles is as high as 75%. The results clearly indicate the great potential of this electrolyte for practical RAB applications.

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Amorphous Carbon-Derived Nanosheet-Bricked Porous Graphite as High-Performance Cathode for Aluminum-Ion Batteries

Cited by 66 publications

References 37 publications

Mesoporous Reduced Graphene Oxide as a High Capacity Cathode for Aluminum Batteries

Mesoporous Reduced Graphene Oxide as a High Capacity Cathode for Aluminum Batteries

Beyond Lithium-Based Batteries

A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries

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