Revisiting Amides as Cosolvents for Flame Resistant Sodium Bis(oxalato)borate in Triethyl Phosphate Electrolyte

Article Electrochemistry

Optimization of Sodium Bis(oxalato)borate (NaBOB) in Triethyl Phosphate (TEP) by Electrolyte Additives

Jonas Welch et al.

Summary: The study demonstrated that the use of electrolyte additives such as PES can optimize the NaBOB-TEP electrolyte for enhanced performance in sodium-ion batteries, paving the way for commercialization.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2022)

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Article Chemistry, Physical

Is Nonflammability of Electrolyte Overrated in the Overall Safety Performance of Lithium Ion Batteries? A Sobering Revelation from a Completely Nonflammable Electrolyte

Hao Jia et al.

Summary: The flammability of liquid electrolyte is an important factor in determining the safety of lithium-ion batteries. Surprisingly, a completely nonflammable electrolyte exhibits inferior safety performance in commercial batteries due to exothermic reactions with charged electrodes. This discovery emphasizes the importance of reducing electrolyte reactivity when designing safe electrolytes.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Physical

Prospective Sustainability Screening of Sodium-Ion Battery Cathode Materials

Manuel Baumann et al.

Summary: A comprehensive and flexible cathode active material screening method has been developed for sodium-ion batteries, providing a fast and comprehensive overview of potential sustainability hotspots for supporting cathode material selection; results show that energy density is one of the most important factors determining overall material demand, with most SIB cathodes showing very promising performance.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Strategies for Mitigating Dissolution of Solid Electrolyte Interphases in Sodium-Ion Batteries

Le Anh Ma et al.

Summary: This study investigates the impact of electrolyte chemistry on the dissolution of the solid electrolyte interphase (SEI) in sodium-ion batteries, using beta-alumina as a sodium-conductive membrane to prevent crosstalk. The research found that the solubility of SEI species in the electrolyte can reach up to 30% after a 50-hour pause, and saturation of the electrolyte with these SEI species can counteract aging due to SEI dissolution.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

An experimental and modeling study of sodium-ion battery electrolytes

Kudakwashe Chayambuka et al.

Summary: The study investigated the viscosity and conductivity characteristics of sodium-ion battery electrolyte using experimental and modeling approaches, revealing the optimal binary electrolyte for SIBs. Experimental results showed that the relationship between conductivity and viscosity follows a simple Stokes' law, and the stability of electrolytes on hard carbon was found to be correlated with the preferential ion solvation of EC.

JOURNAL OF POWER SOURCES (2021)

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Article Chemistry, Physical

A Wide-Temperature-Range, Low-Cost, Fluorine-Free Battery Electrolyte Based On Sodium Bis(Oxalate)Borate

Ronnie Mogensen et al.

Summary: This study proposes a fluorine-free electrolyte based on sodium bis(oxalate)borate, which can be dissolved in NMP and TMP solvents, providing a high ionic conductivity.

CHEMISTRY OF MATERIALS (2021)

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Article Chemistry, Multidisciplinary

A Halogen-Free and Flame-Retardant Sodium Electrolyte Compatible with Hard Carbon Anodes

Lars Olow Simon Colbin et al.

Summary: The study introduces a simple, fluorine-free, and flame-retardant electrolyte compatible with hard carbon for sodium-ion batteries, showing promising electrochemical performance in full-cell tests.

ADVANCED MATERIALS INTERFACES (2021)

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Article Electrochemistry

Transport studies of NaPF6 carbonate solvents-based sodium ion electrolytes

Daniel Morales et al.

Summary: Characterizing fundamental ion transport in various electrolytes, including binary and ternary solvents, revealed temperature-dependent behaviors of viscosity and ionic conductivity. NMR measurements showed cation-anion association at lower temperatures but diverged at higher temperatures, with the addition of FEC impacting local dynamics of solvents and ions differently.

ELECTROCHIMICA ACTA (2021)

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Article Chemistry, Physical

Enabling the Low-Temperature Cycling of NMC∥Graphite Pouch Cells with an Ester-Based Electrolyte

Yoon-Gyo Cho et al.

Summary: Utilizing an ester electrolyte based on methyl propionate, LiNixMnyCozO2 parallel graphite full cells demonstrate successful cycling at high rates at extremely low temperatures. This work provides a new avenue for achieving high-performance LIBs capable of ultralow-temperature charging and discharging operations.

ACS ENERGY LETTERS (2021)

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Review Materials Science, Multidisciplinary

Technologies of lithium recycling from waste lithium ion batteries: a review

Hyuntae Bae et al.

Summary: The consumption of lithium-based materials has doubled in eight years due to the surge in demand for lithium applications, such as lithium-ion batteries. The market size for lithium-ion batteries has grown steadily to $40 billion, with lithium extracted from natural minerals and brines. Despite an 18% increase in lithium consumption from 2018 to 2019, limited reserves may lead to depletion, prompting the development of lithium recycling technologies. However, less than 1 percent of lithium is currently recycled, underscoring the need for future improvement in recycling technologies.

MATERIALS ADVANCES (2021)

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Article Electrochemistry

An Attempt to Formulate Non-Carbonate Electrolytes for Sodium-Ion Batteries

Ronnie Mogensen et al.

Summary: This study investigates a wide range of different solvent classes in the context of sodium-ion battery electrolytes and compares them to the performance of propylene carbonate. Among the thirteen solvents studied, five outperform propylene carbonate and are further investigated with additives. Primary evaluation is based on electrochemical cycling of full-cell sodium-ion batteries, with galvanostatic cycling, cyclic and linear sweep voltammetry, as well as resistance measurements using Intermittent current interruption (ICI) technique.

BATTERIES & SUPERCAPS (2021)

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Article Chemistry, Physical