Regulating the solvation sheath of zinc ions by supramolecular coordination chemistry toward ultrastable zinc anodes

Zhang, Guoqun; Chen, Yuan; Fu, Lulu; Zheng, Li-Feng; Fan, Kebin; Zhang, Chenyang; Zou, Jincheng; Dai, Hongyu; Guan, Linnan; Cao, Yueyue; Mao, Minglei; Ma, Jing; Wang, Chengliang

doi:10.1002/smm2.1216

Cited by 15 publications

(6 citation statements)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The situation in zinc-ion batteries (ZIBs) is a little different from AIBs and MIBs. Due to the suitable electrode potential, ZIBs often use an aqueous electrolyte . As a result, the stored ions in aqueous ZIBs became the competition between protons and divalent Zn 2+ .…”

Section: Chelation Increasing Storage Of Divalent Ionsmentioning

confidence: 99%

See 1 more Smart Citation

Constructing Chelation for Boosting Storage of Large-Sized or Multivalent Ions

Guan,

Zou,

Mao

et al. 2024

Acc. Mater. Res.

Self Cite

View full text Add to dashboard Cite

Metrics & MoreArticle Recommendations CONSPECTUS: Rechargeable lithium-ion batteries (LIBs) are currently the most popular energy storage devices. However, the essential elements for commercial LIBs, i.e., lithium, cobalt, and nickel, are scarce, leading to an increase in cost, which together with the environmental concerns results in concern for future energy storage and calls for large-scale post-LIBs, including Na-, K-, Ca-, Mg-, Zn-, Al-, and dual-ion batteries. However, these post-LIBs are facing challenges in storage of either large-sized (Na-, K-, Ca-ions, anions) or highcharge-density multivalent (Ca-, Mg-, Zn-, Al-) metal ions. The large ionic sizes will inevitably result in the sluggish ionic diffusion, difficulty in storage, enormous volume variation, pulverization, low capacity, and poor cyclability. While the high charge/radius ratio of multivalent ions leads to strong electrostatic interactions with solvent molecules and electrode lattice, strong solvation, high desolvation energy, possible storage of complex ions, sluggish ionic diffusion and reaction kinetics, low actual capacity, and poor rate capability and cyclability.From this point of view, redox-active organic electrode materials (OEMs) are promising for these post-LIBs. OEMs can be easily synthesized from natural resources, which could meet the low-cost requirements for large-scale applications. Another advantage of OEMs is that the electrochemical performance could be facilely tuned through molecular design. High specific capacity could be expected, surpassing inorganic materials with intercalation chemistry. More importantly, organic materials have the merits of flexibility, which makes it intriguing for storage of large-sized ions with fast kinetics, and relatively small volume variation compared with inorganic electrode materials. In addition, organic/polymeric materials are composed by molecules via weak intermolecular interactions and hence should be suitable for storage of multivalent metal ions with reduced electrostatic interactions. In the past two decades, various OEMs have been reported with decent electrochemical performance for both LIBs and post-LIBs. However, they are still facing a lot of challenges, and effective strategies to enhance the performance of organic batteries are scarce.In the past few years, it has also been found that the storage of ions may lead to chelation with the OEMs when the OEMs have multiple active sites for improving the theoretical capacity or substituents for enhancing the intermolecular interactions. Later, we found that the intentional design of adjacent functional groups for chelation could enhance the storage of ions. In this Account, we first give an overview of challenges faced by post-LIBs and then propose a strategy to boost the storage of large-sized or multivalent metal ions by promoting chelation with stored ions, based on the recent works from our group and others. The findings on chelation with both Li ions and other monovalent and multivalent metal ions are summarized. We hope this A...

show abstract

Section: Chelation Increasing Storage Of Divalent Ionsmentioning

confidence: 99%

“…Due to the suitable electrode potential, ZIBs often use an aqueous electrolyte. 57 As a result, the stored ions in aqueous ZIBs became the competition between protons and divalent Zn 2+ . In general, protons are more easily stored in electrode materials due to the small radius and low Gibbs free energy of the corresponding reaction.…”

Section: Ionsmentioning

confidence: 99%

Constructing Chelation for Boosting Storage of Large-Sized or Multivalent Ions

Guan,

Zou,

Mao

et al. 2024

Acc. Mater. Res.

Self Cite

View full text Add to dashboard Cite

show abstract

“…At the same time, many countries around the world have also launched relative policies to accelerate the production of new energy electric vehicles (EVs) to replace the current fossil-fueled vehicles. As we all know, the batteries of next generation − are widely employed in a variety of electronic products and electric vehicles (EVs), mainly because of their high specific capacity, no memory effect, and convenience in carrying. − However, there is a very important problem in the charging and discharging process of LIBs, that is, in the low-temperature environment, the main energy power of EVs is the LIBs; its capacity in such an environment will be seriously reduced and even lead to the phenomenon of lying down for EVs. Therefore, in order to solve the problem, the solution to improve the electrolytic performance of the LIBs in cold conditions is the bridge of the LIBs, i.e., an electrolyte. − The electrolyte is one of the most crucial LIBs’ components since it controls how the batteries function and has a significant impact on the cells’ cyclic stability and rate capability.…”

Section: Introductionmentioning

confidence: 99%

EB (Ethyl Butyrate) as a Cosolvent of Electrolyte Tuning an Ultrathin CEI Membrane for Improving the Ultralow-Temperature Behaviors of LiNi_0.8Co_0.1Mn_0.1O₂ Batteries

Li,

Lv,

Chen

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Adding lithium difluorophosphate into the original electrolyte results in outstanding eletrochemical performances among low temperatures, as documented in our earlier published work; therefore, to be able to gain more stability in lowtemperature performances, in this work, a kind of linear carboxylate cosolvent, EB (ethyl butyrate), is introduced, which has low viscosity (0.639 mPa s), high ion conductivity (5.18 mS cm −1 ), and ultralow melting point (−93 °C). The study's results show that the basic electrolyte's conductivity and viscosity are correspondingly 2.9 mS cm −1 and 3.34 mPa s at −40 °C; however, comparing under the same condition, after adding 16% EB into the baseline, the conductivity and viscosity are 3.37 mS cm −1 and 3.07 mPa s, whose amplitude changes show that the conductivity has increased by 16.2% and the viscosity has dropped by 8% in the interim. Therefore, the addition of EB can clearly boost conductivity, also drastically decreasing the electrolyte's viscosity, further to signify that the addition of EB can contribute to the decrease in the resistance during lithium-ion transport in cold conditions. Besides, the electrochemical properties of the batteries during cold conditions can be obviously improved by adding EB. In addition, after 50 cycles of −40 °C, the basic electrolyte has a discharge capacity of 81.94 mAh g −1 ; on the contrary, the cells using the 16 EB-modified coreagent maintains a discharge capacity of 112.3 mAh g −1 under the same conditions. Overall, the cells containing EB perform exceptionally well at low temperatures and are capable of meeting the appliance of Li-ion batteries in a cool environment.

show abstract

“…Lithium‐ion batteries (LIBs) have been widely used in portable electronics, electric vehicles and grid energy storage since the commercialization in the early 1990s [1–2] . However, the current commercial electrode materials are mainly based on transition metal oxides or phosphates mined and produced from ores, making it challenging for sustainable large‐scale energy storage applications [3–7] . The emerging organic electrode materials attracted growing attention as promising alternatives to conventional inorganic electrode materials due to their resource sustainability, environmental friendliness, structural designability and potentially low cost [8–12] .…”

Section: Introductionmentioning

confidence: 99%

A donor–acceptor (D–A) conjugated polymer for fast storage of anions

Fu,

Chen,

Jin

et al. 2023

Angewandte Chemie

Self Cite

View full text Add to dashboard Cite

Organic electrode materials have attracted a lot interest in batteries in recent years. However, most of them still suffer from low performance such as low electrode potential, slow reaction kinetics, and short cycle life. In this work, we report a strategy of fabricating donor–acceptor (D–A) conjugated polymers for facilitating the charge transfer and therefore accelerating the reaction kinetics by using the copolymer (p‐TTPZ) of dihydrophenazine (PZ) and thianthrene (TT) as a proof‐of‐concept. The D–A conjugated polymer as p‐type cathode could store anions and exhibited high discharge voltages (two plateaus at 3.82 V, 3.16 V respectively), a reversible capacity of 152 mAh g−1 at 0.1 A g−1, excellent rate performance with a high capacity of 124.2 mAh g−1 at 10 A g−1 (≈50 C) and remarkable cyclability. The performance, especially the rate capability was much higher than that of its counterpart homopolymers without D–A structure. As a result, the p‐TTPZ//graphite full cells showed a high output voltage (3.26 V), a discharge specific capacity of 139.1 mAh g−1 at 0.05 A g−1 and excellent rate performance. This work provides a novel strategy for developing high performance organic electrode materials through molecular design and will pave a way towards high energy density organic batteries.

show abstract

Regulating the solvation sheath of zinc ions by supramolecular coordination chemistry toward ultrastable zinc anodes

Cited by 15 publications

References 77 publications

Constructing Chelation for Boosting Storage of Large-Sized or Multivalent Ions

Constructing Chelation for Boosting Storage of Large-Sized or Multivalent Ions

EB (Ethyl Butyrate) as a Cosolvent of Electrolyte Tuning an Ultrathin CEI Membrane for Improving the Ultralow-Temperature Behaviors of LiNi_0.8Co_0.1Mn_0.1O₂ Batteries

A donor–acceptor (D–A) conjugated polymer for fast storage of anions

Contact Info

Product

Resources

About

Regulating the solvation sheath of zinc ions by supramolecular coordination chemistry toward ultrastable zinc anodes

Cited by 15 publications

References 77 publications

Constructing Chelation for Boosting Storage of Large-Sized or Multivalent Ions

Constructing Chelation for Boosting Storage of Large-Sized or Multivalent Ions

EB (Ethyl Butyrate) as a Cosolvent of Electrolyte Tuning an Ultrathin CEI Membrane for Improving the Ultralow-Temperature Behaviors of LiNi0.8Co0.1Mn0.1O2 Batteries

A donor–acceptor (D–A) conjugated polymer for fast storage of anions

Contact Info

Product

Resources

About

EB (Ethyl Butyrate) as a Cosolvent of Electrolyte Tuning an Ultrathin CEI Membrane for Improving the Ultralow-Temperature Behaviors of LiNi_0.8Co_0.1Mn_0.1O₂ Batteries