A review of sodium chloride-based electrolytes and materials for electrochemical energy technology

Wei, Wutao; Xu, Jiaqiang; Chen, Weihua; Mi, Liwei; Zhang, Jiujun

doi:10.1039/d1ta09371a

Cited by 32 publications

(19 citation statements)

References 397 publications

(453 reference statements)

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“…Obviously, all the electrolytes with eutectic concentrations have remarkably lower freezing points compared with those with conventional concentrations of 1 m or 2 m CaCl 2 , MgCl 2, or NaCl. [42][43][44][45] This result is consistent with the eutectic behavior of the colligative property shown in the phase diagram.…”

Section: Physical Characteristics Of the Bressupporting

confidence: 88%

“…[ 50 ] As shown in Figure S3 (Supporting Information), the electrochemical window of 3.8 m CaCl 2 , 2.8 m MgCl 2 and 5.2 m NaCl are 2.0 V, 1.9 V, and 2.1 V, respectively. The voltage window of BREs is wider than most reported electrolytes with conventional concentrations (1 m CaCl 2 , [ 45 ] NaCl, [ 42–44,51,52 ] MgCl 2 [ 53 ] etc.). Considering the reversibility and electrolytic decomposition of the device, the voltage range of 0–1.8 V was selected as the operating voltage range of the device (Figure S4, Supporting Information).…”

Section: Resultsmentioning

confidence: 95%

“…Therefore, the SCs with 3.8 m CaCl 2 BRE achieved an unprecedented low‐temperature ultralong cycle lifespan, outperforming the other SCs which could be operated below −40 °C in literature, as far as the authors’ best knowledge (Figure 3k; Table S2, Supporting Information). [ 59–72 ] The SC using 5.2 m NaCl BRE also achieves stable operation at a low temperature of −20 °C (Figure S11, Supporting Information). As shown in Figure S12 (Supporting Information), the SC using 2.8 m MgCl 2 BRE exhibits excellent rate capability and cycling stability at −30 °C.…”

Section: Resultsmentioning

confidence: 99%

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Brine Refrigerants for Low‐cost, Safe Aqueous Supercapacitors with Ultra‐long Stable Operation at Low Temperatures

You

Yuan

et al. 2022

Adv Funct Materials

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Traditional aqueous energy storage devices are difficult to operate at low temperatures owing to the poor ionic conductivity and sluggish interfacial dynamics in frozen electrolytes. Herein, the low-cost brine refrigerants for food freezing and preservation as electrolytes, and unexpectedly realize high ionic conductivity and stable operation of an aqueous storage device at low temperatures are demonstrated. A CaCl 2 brine refrigerant electrolyte (BRE) with a low freezing point −55 °C and high ionic conductivity (10.1 mS cm −1 at −50 °C) is developed for supercapacitors (SCs), which retains 80% of the room temperature capacity at −50 °C and exhibits ultra-long cycle life with excellent capacity retention of 92% over 98,500 cycles, outperforming the other SCs which can be operated below −40 °C in literature. Moreover, the SCs with MgCl 2 and NaCl BREs can also be operated successfully with excellent cycle stability and high-capacity retention at low temperatures of −30 and −20 °C, respectively. Fundamental correlation between various cations and their effect on the freezing point reduction of aqueous electrolytes is revealed via Raman investigation and molecular dynamics simulations. This study provides a rational design strategy for green, inexpensive, and safe low-temperature aqueous electrolytes for energy storage devices.

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Section: Physical Characteristics Of the Bressupporting

confidence: 88%

Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Brine Refrigerants for Low‐cost, Safe Aqueous Supercapacitors with Ultra‐long Stable Operation at Low Temperatures

You

Yuan

et al. 2022

Adv Funct Materials

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“…Ni 2+ (Figure S1, Supporting Information) and hydrophilic functional (Figures S2 and S3, Supporting Information) groups on the surface of NCNTs have a chemical affinity for S 2− and Ni 2+ , respectively, resulting in the preferential in situ growth of NiS 2 crystal seeds on the surface of NCNTs. [ 34–40 ] As the reaction progresses, NiS 2 crystal seeds grow gradually, and the nanoparticles of NiS 2 are assembled on the surface of NCNTs. The 3D NCNTs as the through–through electron transport paths can make up for the poor electronic conductivity of anion‐rich NiS 2 electrode material.…”

Section: Resultsmentioning

confidence: 99%

In Situ Anchoring Anion‐Rich and Multi‐Cavity NiS₂ Nanoparticles on NCNTs for Advanced Magnesium‐Ion Batteries

Wei

et al. 2022

Advanced Science

Self Cite

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Magnesium (Mg)‐ion batteries with low cost and good safety characteristics has attracted a great deal of attention recently. However, the high polarity and the slow diffusion of Mg2+ in the cathode material limit the development of practical Mg cathode materials. In this paper, an anion‐rich electrode material, NiS2, and its composite with Ni‐based carbon nanotubes (NiS2/NCNTs) are explored as the cathode materials for Mg‐ion batteries. These NiS2/NCNTs with excellent Mg2+ storage property is synthesized by a simple in situ growth of NiS2 nanoparticles on NCNTs. NiS2 with both a large regular cavity structure and abundant sulfur‐sulfur (SS) bonds with high electronegativity can provide a large number of active sites and unobstructed transport paths for the insertion–disinsertion of Mg2+. With the aid of 3D NCNTs skeleton as the transport channel of the electron, the NiS2/NCNTs exhibit a high capacity of 244.5 mAh g−1 at 50 mA g−1 and an outstanding rate performance (94.7 mAh g−1 at 1000 mA g−1). It achieves capacitance retention of 58% after 2000 cycles at 200 mA g−1. Through theoretical density functional theory (DFT) calculations and a series of systematic ex situ characterizations, the magnesiation/demagnesiation mechanisms of NiS2 and NiS2/NCNTs and are elucidated for fundamental understanding.

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“…constructed a Z‐scheme system consisting of AgNbO 3 , Ag, Er 3+ , YAlO 3 and Nb 2 O 5 for the removal of auramine O (AO). Due to the variable valence state of transition metals, they can exhibit excellent optoelectronic properties [90–92] . Thus, compared with AgNbO 3 and Nb 2 O 5 , the Ag|AgNbO 3 /Ag/Er 3+ : YAlO 3 @Nb 2 O 5 was enriched with a high yield of reactive sites to play the function of Ag.…”

Section: Categories Of Type‐ii Heterojunction Systemmentioning

confidence: 99%

Research Progress on Cu₂O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics

Wang

Yang

et al. 2022

ChemistrySelect

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Photocatalytic degradation technology, using solar energy as the driving force, is considered the most possible alternative to remediate environmental pollution. And it is essential to find a stable and efficient photocatalyst. As promising semiconductor-based photocatalysts, Cu 2 O has acquired massive attention owning to its high conduction band energy, superior visiblelight response-ability, low cost, eco-friendly, and abundance. However, the application of origin Cu 2 O faces severe problems due to its photocorrosion and low photoinduced carrier separation. Consequently, it is necessary to improve its photo-stability and photocatalytic activity by carrying out numerous modification strategies, such as heterostructure construction. Herein, we first summarize the classification and operation principles of Cu 2 O-based type-II heterojunction. Then, the application of the Cu 2 O-based type-II heterojunction photocatalysts for the removal of tetracyclines, quinolones, and sulfonamides have been discussed. Finally, the pressing issues and perspectives in Cu 2 O-based type-II heterojunction photocatalysts application for degrading antibiotics have prospected.

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A review of sodium chloride-based electrolytes and materials for electrochemical energy technology

Abstract: Sodium chloride (NaCl) as one of the most nature abundant compounds plays an irreplaceable role in industrial development and human life. In recent years, NaCl have received eruptible attention in...

Cited by 32 publications

References 397 publications

Brine Refrigerants for Low‐cost, Safe Aqueous Supercapacitors with Ultra‐long Stable Operation at Low Temperatures

Brine Refrigerants for Low‐cost, Safe Aqueous Supercapacitors with Ultra‐long Stable Operation at Low Temperatures

In Situ Anchoring Anion‐Rich and Multi‐Cavity NiS₂ Nanoparticles on NCNTs for Advanced Magnesium‐Ion Batteries

Research Progress on Cu₂O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics

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A review of sodium chloride-based electrolytes and materials for electrochemical energy technology

Abstract: Sodium chloride (NaCl) as one of the most nature abundant compounds plays an irreplaceable role in industrial development and human life. In recent years, NaCl have received eruptible attention in...

Cited by 32 publications

References 397 publications

Brine Refrigerants for Low‐cost, Safe Aqueous Supercapacitors with Ultra‐long Stable Operation at Low Temperatures

Brine Refrigerants for Low‐cost, Safe Aqueous Supercapacitors with Ultra‐long Stable Operation at Low Temperatures

In Situ Anchoring Anion‐Rich and Multi‐Cavity NiS2 Nanoparticles on NCNTs for Advanced Magnesium‐Ion Batteries

Research Progress on Cu2O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics

Contact Info

Product

Resources

About

In Situ Anchoring Anion‐Rich and Multi‐Cavity NiS₂ Nanoparticles on NCNTs for Advanced Magnesium‐Ion Batteries

Research Progress on Cu₂O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics