Research Topic

Compatibility and Interfacial Reaction Mechanism Between Electrodes and Electrolytes in Non-Solid State Alkali Rechargeable Batteries

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About this Research Topic

Lithium-ion batteries (LIBs) have been widely applied in smart mobile devices and electric vehicles which has higher requirements for battery performance, especially in cycle life and safety. Nevertheless, the performance of LIBs depends to a great extent on the reduction/oxidation reactions of electrode/electrolyte interphase which have become a hot topic in energy storage devices.
Screening lithium salts and electrolytic solutions can contribute to achieving good compatibility of electrodes/electrolyte. But large amounts of experimental data need to be collected, filtered and analyzed, which cause inherent limitations such as long development periods, more uncertainty and difficulty in balancing multiple interactions. What is most urgently needed is to build a general electrolyte system optimization methods to match corresponding electrodes.

Mechanism studies of interfacial reactions of electrode/electrolyte including electrolyte decomposition, passive film formation, active material dissolution, are of significance in revealing the essence of capacity fade in batteries. Various means such as traditional and in-situ testing, as well as theoretical calculations, are available in the open literature. Due to the complexity and heterogeneity in electrode/electrolyte reactions, identifying characterization results and constructing valid mathematical models to clarify the formation of the electrode/electrolyte interface film with multiple interactions of constraints, synergies, and promotion is another key issue.
In addition, Na+ and K+ ions play a role in sodium-ion batteries (SIBs) and potassium-ion batteries (KIBs), respectively, that is similar to the role played by Li+ in LIBs. Relevant fundamental and application studies in alkali-ion batteries are therefore highly appreciated.

We welcome submissions of both original research and review/perspective articles that contribute to the experimental and theoretical research about compatibility and interfacial mechanism of electrode/electrolyte in non-solid state alkali-ion batteries. Areas to be covered in this Research Topic may include, but are not limited to:

1. Development and application of new lithium salts and suitable electrolytes
2. In situ techniques applied in interface between electrode and electrolyte in alkali-ion batteries.
3. Establishment of high voltage cathode materials and suitable high voltage electrolytes
4. Understanding of Li+ intercalation/deintercalation into/from representative anode and cathode materials
5. Understanding of double layer structure, capacitance and transport at the anode and cathode interface
6. The forming mechanism, composition and stability of the interface film on the electrode
7. New model in the interface of electrode/electrolyte in alkali-ion batteries.


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

Lithium-ion batteries (LIBs) have been widely applied in smart mobile devices and electric vehicles which has higher requirements for battery performance, especially in cycle life and safety. Nevertheless, the performance of LIBs depends to a great extent on the reduction/oxidation reactions of electrode/electrolyte interphase which have become a hot topic in energy storage devices.
Screening lithium salts and electrolytic solutions can contribute to achieving good compatibility of electrodes/electrolyte. But large amounts of experimental data need to be collected, filtered and analyzed, which cause inherent limitations such as long development periods, more uncertainty and difficulty in balancing multiple interactions. What is most urgently needed is to build a general electrolyte system optimization methods to match corresponding electrodes.

Mechanism studies of interfacial reactions of electrode/electrolyte including electrolyte decomposition, passive film formation, active material dissolution, are of significance in revealing the essence of capacity fade in batteries. Various means such as traditional and in-situ testing, as well as theoretical calculations, are available in the open literature. Due to the complexity and heterogeneity in electrode/electrolyte reactions, identifying characterization results and constructing valid mathematical models to clarify the formation of the electrode/electrolyte interface film with multiple interactions of constraints, synergies, and promotion is another key issue.
In addition, Na+ and K+ ions play a role in sodium-ion batteries (SIBs) and potassium-ion batteries (KIBs), respectively, that is similar to the role played by Li+ in LIBs. Relevant fundamental and application studies in alkali-ion batteries are therefore highly appreciated.

We welcome submissions of both original research and review/perspective articles that contribute to the experimental and theoretical research about compatibility and interfacial mechanism of electrode/electrolyte in non-solid state alkali-ion batteries. Areas to be covered in this Research Topic may include, but are not limited to:

1. Development and application of new lithium salts and suitable electrolytes
2. In situ techniques applied in interface between electrode and electrolyte in alkali-ion batteries.
3. Establishment of high voltage cathode materials and suitable high voltage electrolytes
4. Understanding of Li+ intercalation/deintercalation into/from representative anode and cathode materials
5. Understanding of double layer structure, capacitance and transport at the anode and cathode interface
6. The forming mechanism, composition and stability of the interface film on the electrode
7. New model in the interface of electrode/electrolyte in alkali-ion batteries.


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

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