A comprehensive understanding of the anionic redox chemistry in layered oxide cathodes for sodium-ion batteries

Jin, Junteng; Liu, Yongchang; Pang, Xuelu; Wang, Yao; Xing, Xiaopeng; Chen, Jun

doi:10.1007/s11426-020-9897-8

Cited by 44 publications

(28 citation statements)

References 130 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 4 ] Among all the investigated Na‐based cathodes, layered oxides with the formula of Na x TMO 2 (TM: transition metal) are promising, as they offer a feasible solution to break the limit of specific capacity by activating the oxygen redox reaction in addition to the traditional TM redox chemistry. [ 5 ] Nevertheless, lattice oxygen is liable to become unstable and form (O 2 ) n– dimers or even O 2 molecules after contributing excessive electrons, resulting in irreversible oxygen loss and derived structural rearrangement (e.g., the generation of surface rock‐salt species), particularly during the initial cycles, and eventually resulting in severe capacity fading and voltage degradation, which have been demonstrated in various Li‐rich materials. [ 6 ] Therefore, several effective strategies, such as doping 4d/5d TMs (Ru, [ 7 ] Ir, [ 8 ] etc.…”

Section: Introductionmentioning

confidence: 99%

Unveiling the Complementary Manganese and Oxygen Redox Chemistry for Stabilizing the Sodium‐Ion Storage Behaviors of Layered Oxide Cathodes

Jin

Liu

Shen

et al. 2022

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

Layered oxide cathodes for sodium‐ion batteries (SIBs) have drawn increasing attention owing to their fascinating additional capacity contributed by oxygen‐redox chemistry. Unfortunately, excessive oxygen redox incurs an irreversible oxygen release, deteriorating the cyclic stability and compromising the advantage of additional capacity. Significant efforts have been made so far to stabilize lattice oxygen, but the potential advantages associated with oxygen loss have been ignored. Herein, a complementary Mn and O redox mechanism is first revealed in a novel P2‐Na0.75Ca0.04[Li0.1Ni0.2Mn0.67]O2 cathode. The partial oxygen release activates more Mn3+/Mn4+ redox capacities upon cycling, which effectively compensate the capacity loss from O2‐/On‐ redox and thus enable an ultra‐stable cycling performance (capacity retentions of 102.1% and 95.2% over 100 and 200 cycles at 5 C, respectively). The fast Na+ diffusion kinetics of the cathode also ensure an exceptional rate capability (133.1 and 68.8 mAh g‐1 at 0.1 and 20 C, respectively). The electrode crystal/electronic structure evolution and charge compensation mechanism upon sodiation/desodiation have been elucidated via systematic operando measurements and theoretical computations. The complementary chemistry is a universal principle that stabilizes the Na‐storage behaviors of Mn‐based oxide cathodes, providing new opportunities for anionic redox to boost the energy density and cycling life of SIBs simultaneously.

show abstract

Section: Introductionmentioning

confidence: 99%

Unveiling the Complementary Manganese and Oxygen Redox Chemistry for Stabilizing the Sodium‐Ion Storage Behaviors of Layered Oxide Cathodes

Jin

Liu

Shen

et al. 2022

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…The combination of experimental, theoretical simulation and mathematical modeling can be beneficial in modulating the design and structures, and properties of BMCs to improve the electrochemical performance. (6) The control of structure at the atomic level can precisely and considerably modulate the physiochemical properties of various materials including nobel metals and metal oxides, and has shown big achievement in the field of energy conversion and storage [97,271]. The atomic level engineering not only changes the charge storage mechanism of oxide materials from surface redox to intercalation into bulk materials, but also enhances the electronic and ionic conductivity [97].…”

Section: Reviewsmentioning

confidence: 99%

“…However, the full utilization of these energy resources cannot be exploited, without developing low cost, highly efficient and environmentally friendly electrochemical energy storage (ESS) systems to regulate the intermittent output. Among various electrochemical energy storage (EES) systems, supercapacitors (SCs), metal-ion batteries (MIBs) including lithium-ion batteries (LIBs), sodium-ion batteries (SIBs), potassium-ion batteries (PIBs) and multi-ion batteries (multi-IBs), metal-air batteries (MABs), and rechargeable alkaline batteries (RABs) are very promising [1][2][3][4][5][6][7][8][9]. Among these, LIBs are already commercialized but facing many challenges such as high cost, geopolitical issue and non-uniform distribution of lithium, and relatively low energy and power density of commercialized graphite anode in LIBs.…”

Section: Introductionmentioning

confidence: 99%

Role of binary metal chalcogenides in extending the limits of energy storage systems: Challenges and possible solutions

et al. 2021

View full text Add to dashboard Cite

Binary metal chalcogenides (BMCs) have shown better electrochemical performance compared with their mono metal counterparts owing to their abundant phase interfaces, higher active sites, faster electrochemical kinetics and higher electronic conductivity. Nevertheless, their performance still undergoes adverse decline during electrochemical processes mainly due to poor intrinsic ionic conductivities, large volume expansions, and structural agglomeration and fracture. To tackle these problems, various strategies have been applied to engineer the BMC nanostructures to obtain optimized electrode materials. However, the lack of understanding of the electrochemical response of BMCs still hinders their large-scale application. This review not only highlights the recent progress and development in the preparation of BMC-based electrode materials but also explains the kinetics to further understand the relation between structure and performance. It will also explain the engineering of BMCs through nanostructuring and formation of their hybrid structures with various carbonaceous materials and three-dimensional (3D) templates. The review will discuss the detailed working mechanism of BMC-based nanostructures in various electrochemical energy storage (EES) systems including supercapacitors, metal-ion batteries, metal-air batteries, and alkaline batteries. In the end, major challenges and prospective solutions for the development of BMCs in EES devices are also outlined. We believe that the current review will provide a guideline for tailoring BMCs for better electrochemical devices.

show abstract

“…Several published reviews have mainly discussed the anionic redox reaction from the perspective of a possible mechanism and applicable cathode materials. [ 21–25 ] Origins, positive effects, theoretical and experimental research methods, clear prospects including future study thoughts or cost analysis on the anionic redox reaction of sodium‐layered oxide cathodes have not been investigated. Therefore, to obtain explicit and integrated understanding about further practical applications, a systematic overview of anionic oxygen redox in SIBs is necessary.…”

Section: Introductionmentioning

confidence: 99%

Unraveling Anionic Redox for Sodium Layered Oxide Cathodes: Breakthroughs and Perspectives

et al. 2022

View full text Add to dashboard Cite

Sodium‐ion batteries (SIBs) as the next generation of sustainable energy technologies have received widespread investigations for large‐scale energy storage systems (EESs) and smart grids due to the huge natural abundance and low cost of sodium. Although the great efforts are made in exploring layered transition metal oxide cathode for SIBs, their performances have reached the bottleneck for further practical application. Nowadays, anionic redox in layered transition metal oxides has emerged as a new paradigm to increase the energy density of rechargeable batteries. Based on this point, in this review, the development history of anionic redox reaction is attempted to systematically summarize and provide an in‐depth discussion on the anionic redox mechanism. Particularly, the major challenges of anionic redox and the corresponding available strategies toward triggering and stabilizing anionic redox are proposed. Subsequently, several types of sodium layered oxide cathodes are classified and comparatively discussed according to Na‐rich or Na‐deficient materials. A large amount of progressive characterization techniques of anionic oxygen redox is also summarized. Finally, an overview of the existing prospective and the future development directions of sodium layered transition oxide with anionic redox reaction are analyzed and suggested.

show abstract

A comprehensive understanding of the anionic redox chemistry in layered oxide cathodes for sodium-ion batteries

Cited by 44 publications

References 130 publications

Unveiling the Complementary Manganese and Oxygen Redox Chemistry for Stabilizing the Sodium‐Ion Storage Behaviors of Layered Oxide Cathodes

Unveiling the Complementary Manganese and Oxygen Redox Chemistry for Stabilizing the Sodium‐Ion Storage Behaviors of Layered Oxide Cathodes

Role of binary metal chalcogenides in extending the limits of energy storage systems: Challenges and possible solutions

Unraveling Anionic Redox for Sodium Layered Oxide Cathodes: Breakthroughs and Perspectives

Contact Info

Product

Resources

About