Rechargeable lithium/iodine battery with superior high-rate capability by using iodine–carbon composite as cathode

Wang, Yong-Long; Sun, Quan; Zhao, Qiancheng; Cao, Jun; Ye, S. H.

doi:10.1039/c1ee01875b

Cited by 139 publications

(152 citation statements)

References 25 publications

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“…Ye and co-workers first employed the iodine cathode in ac onventional lithium-ion battery system with the LiPF 6 /carbonate electrolyte and Li anode. [55] This rechargeable Li-I 2 battery indicated redox potentials of 3.33/3.38 and 2.87/3.02 Vv ersus Li + /Li, which corresponded to the two-step electrochemical redox reactions of I 2 ÐI 3 À ÐI À based on the transfer of lithium ions.Aniodinecomposite cathode with aporous carbon matrix was prepared to limit the dissolution of the I 2 and LiI active materials in the electrolyte.…”

Section: Halides In Other Rechargeable Batteriesmentioning

confidence: 88%

Halide‐Based Materials and Chemistry for Rechargeable Batteries

et al. 2020

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Rechargeable batteries are considered one of the most effective energy storage technologies to bridge the production and consumption of renewable energy. The further development of rechargeable batteries with characteristics such as high energy density, low cost, safety, and a long cycle life is required to meet the ever‐increasing energy‐storage demands. This Review highlights the progress achieved with halide‐based materials in rechargeable batteries, including the use of halide electrodes, bulk and/or surface halogen‐doping of electrodes, electrolyte design, and additives that enable fast ion shuttling and stable electrode/electrolyte interfaces, as well as realization of new battery chemistry. Battery chemistry based on monovalent cation, multivalent cation, anion, and dual‐ion transfer is covered. This Review aims to promote the understanding of halide‐based materials to stimulate further research and development in the area of high‐performance rechargeable batteries. It also offers a perspective on the exploration of new materials and systems for electrochemical energy storage.

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Section: Halides In Other Rechargeable Batteriesmentioning

confidence: 88%

Halide‐Based Materials and Chemistry for Rechargeable Batteries

et al. 2020

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“…The linearly increased oxidation and reduction peak-currents correlated with the square root of the sweeping rate (u) as shown in Fig. 1e revealed that the I 3 À /I À redox reaction was diffusion-controlled in the Li-I 2 battery 16 . The galvanostatic measurements of the prototype Li-I 2 battery showed B80% Coulombic efficiency at 298 K on the first cycle of charge/discharge ( Supplementary Fig.…”

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confidence: 89%

High-performance rechargeable lithium-iodine batteries using triiodide/iodide redox couples in an aqueous cathode

2013

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Development of promising battery systems is being intensified to fulfil the needs of long-driving-ranged electric vehicles. The successful candidates for new generation batteries should have higher energy densities than those of currently used batteries and reasonable rechargeability. Here we report that aqueous lithium-iodine batteries based on the triiodide/ iodide redox reaction show a high battery performance. By using iodine transformed to triiodide in an aqueous iodide, an aqueous cathode involving the triiodide/iodide redox reaction in a stable potential window avoiding water electrolysis is demonstrated for lithium-iodine batteries. The high solubility of triiodide/iodide redox couples results in an energy density of B0.33 kWh kg À 1 , approximately twice that of lithium-ion batteries. The reversible redox reaction without the formation of resistive solid products promotes rechargeability, demonstrating 100 cycles with negligible capacity fading. A low cost, non-flammable and heavy-metal-free aqueous cathode can contribute to the feasibility of scale-up of lithium-iodine batteries for practical energy storage.

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“…the CEI should ideally be formed at the potentials below that of the Li extraction from the cathode at the first cycle. In this sense, a large first cycle overpotential commonly observed in conversion cathodes 11,13,[16][17][18]23,27,28,39,41,48,[60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][75][76][77][78] is beneficial, as it provides more freedom to select electrolyte compositions with suitable oxidation/reduction potentials [ Fig. 4(a)].…”

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confidence: 99%

In situ surface protection for enhancing stability and performance of conversion-type cathodes

Borodin

Yushin

2017

MRS Energy & Sustainability

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Lithium and lithium-ion batteries (LBs and LIBs) are the most popular battery systems for electrochemical energy storage technologies. Commercial LIBs utilize intercalation-type cathode materials, mostly nickel (Ni)-based and cobalt (Co)-based cathodes, showing specific capacities of up to ∼200 mA h/g (theoretical capacity below 300 mA h/g), which limit the specific energy of batteries, and are additionally expensive and toxic. An EPA study showed that the Ni-and Co-containing batteries that use solvent-based electrode processing have the highest potential for negative environmental impacts. 1 These impacts include resource depletion, global warming, ecological toxicity, and human health impacts with the largest contributing processes include those associated with the production, processing, and use of cobalt and nickel metal compounds, which may cause adverse respiratory, pulmonary, and neurological effects in those exposed. 1 The study suggested cathode material substitution and solvent-less electrode processing to reduce these impacts. 1 The uneven distribution of Co in the earth crust 2 and the insufficient use of suitable personal protection equipment in many Co mining developing countries 3,4 created a major concern. For example, Amnesty International findings of major exploitations of children in Co mines and the related child sickness and deaths 3,4 demonstrate some of the most horrific examples of child labor, which international community should not tolerate and certainly should not encourage through growing market demands for Co. The growing Co contained-electronic waste ABSTRACTThe use of in situ formed protective layer on conversion cathodes was introduced as a cheap and simple strategy to shield these materials from undesirable interactions with liquid electrolytes.Conversion-type cathodes have been viewed as promising candidates to replace Ni-and Co-based intercalation-type cathodes for next-generation lithium (Li) and Li-ion batteries with higher specific energy, lower cost, and potentially longer cycle life. Typically, in conversion reactions two or three Li ions may be stored per just one atom of chalcogen (e.g., S or Se) or transition metal (e.g., Fe or Cu used in halides). Unfortunately, in conversion chemistries the active materials or intermediate charge/discharge products suffer from various unfavorable interactions and dissolution in organic electrolytes. In this mini-review article, we discuss the current interfacial challenges and focus on the protective layers in situ formed on the cathode surface to effectively shield conversion materials from undesirable interactions with liquid electrolytes. We further explore the mechanisms and current progress of forming such protective layers by using various salts, solvents, and additives together with the insight from molecular modeling. Finally, we discuss future opportunities and perspectives of in situ surface protection.Keywords: Li; S; F; coating; energy storage Review DiSCUSSiON POiNTS• Conversion-type cathodes have been viewed as promi...

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Rechargeable lithium/iodine battery with superior high-rate capability by using iodine–carbon composite as cathode

Cited by 139 publications

References 25 publications

Halide‐Based Materials and Chemistry for Rechargeable Batteries

Halide‐Based Materials and Chemistry for Rechargeable Batteries

High-performance rechargeable lithium-iodine batteries using triiodide/iodide redox couples in an aqueous cathode

In situ surface protection for enhancing stability and performance of conversion-type cathodes

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