E.ON funds storage technologies

doi:10.1016/s1471-0846(08)70108-2

Cited by 2 publications

(3 citation statements)

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“…These hybrids store charge differently from a capacitor, but the word capacitor in these names has led to misuse of capacitance as a performance indicator [6]. For unambiguous classification and comparison, the generic name supercapattery (= supercapacitor + battery) was proposed in 2007, followed by laboratory demonstration later [7,8]. In fact, combination of capacitive and lithium storage electrodes was reported in earlier literatures, although the term "lithium-ion capacitor" (LIC) first appeared also in 2007 [9][10][11][12].…”

Section: Challenges To Conventional Electrochemical Energy Storagementioning

confidence: 99%

Supercapattery: Merit merge of capacitive and Nernstian charge storage mechanisms

Chen

2020

Current Opinion in Electrochemistry

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Supercapattery is the generic name for hybrids of supercapacitor and rechargeable battery. Batteries store charge via Faradaic processes, involving reversible transfer of localised or zone-delocalised valence electrons. The former is governed by the Nernst equation. The latter leads to pseudocapacitance (or Faradaic capacitance) which may be differentiated from electric double layer capacitance with spectroscopic assistance such as electron spin resonance. Since capacitive storage is the basis of supercapacitors, the combination of capacitive and Nernstian mechanisms has dominated supercapattery research since 2018, covering nanostructured and compounded metal oxides and sulfides, water-in-salt and redox active electrolytes and bipolar stacks of multi-cells. The technical achievements so far, such as specific energy of 270 Wh/kg in aqueous electrolyte, and charging-discharging for over 5000 cycles, benchmark a challenging but promising future of supercapattery.

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Section: Challenges To Conventional Electrochemical Energy Storagementioning

confidence: 99%

Supercapattery: Merit merge of capacitive and Nernstian charge storage mechanisms

Chen

2020

Current Opinion in Electrochemistry

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“…4,[11][12][13] Firstly, a supercapattery with improved technical performance can basically be made from pairing and matching a battery electrode with a supercapacitor electrode. Secondly, it can be achieved alternatively by the combination of the supercapacitor and battery merits into a composite or uniquely structured material for making a new high performance electrode which is then used in making the supercapattery.…”

Section: Introductionmentioning

confidence: 99%

“…It is acknowledged that as a new term, supercapattery is slowly but steadily gaining recognition of the EES community. [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] In this regard, it is worth highlighting that both the Li-ion and Na-ion capacitors refer specifically to devices that would use Li-ion or Na-ion as the charge carrier in the cell, wherein one of the electrodes is a battery electrode on which Faradaic (but non-capacitive) charge storage occurs, and the other is a supercapacitor electrode on which charge storage is capacitive in mechanism. However, similar to "rechargeable battery" as a generic term for all batteries that are rechargeable, supercapattery is also a generic term and describes all devices using a battery electrode and a capacitive electrode in combination, including both the Li-ion and Naion capacitors, and many other EES devices that utilize both capacitive and Faradaic charge storage mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Fundamental Consideration for Electrochemical Engineering of Supercapattery

Akinwolemiwa¹

2018

J. Braz. Chem. Soc.

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Supercapattery is the generic name for various electrochemical energy storage (EES) devices combining the merits of battery (high energy density) and supercapacitor (high power density and long cycling life). In this article, the principle and applications of EES devices are selectively reviewed as the background for supercapattery development. The focus is on the engineering aspects for fabrication of two types of supercapattery: (i) by coupling a battery electrode with a supercapacitor electrode, or (ii) from materials that possess both the Nernstian and capacitive charge storage capacities. Fundamental rationales are discussed in relation with the designs, such as why the device is always asymmetrical, and what materials are suitable for making supercapattery. Whilst the key is how to optimize device performance in terms of energy capacity, power capability and cycle life, cost is also discussed on resource rich materials such as nanostructured composites and redox electrolytes.

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E.ON funds storage technologies

Cited by 2 publications

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Supercapattery: Merit merge of capacitive and Nernstian charge storage mechanisms

Supercapattery: Merit merge of capacitive and Nernstian charge storage mechanisms

Fundamental Consideration for Electrochemical Engineering of Supercapattery

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