In our study, we explored the use of Si 3 N 4 as an anode material for all-solid-state lithium-ion battery configuration, with lithium borohydride as the solid electrolyte and Li foil as the counter-electrode. Through galvanostatic charge/discharge profiling, we achieved a remarkable maximum reversible capacity of 832 mAh/g.
Lithium alloying materials are promising candidates to replace the current intercalation-type graphite negative electrode materials in lithium-ion batteries (LIBs) due to their high specific capaci...
During the initial lithiation of the negative electrode, as Li ions are incorporated into the active material, the potential of the negative electrode decreases below 1 V (vs. Li/Li +) toward the reference electrode (Li metal), approaching 0 V in the later stages of the process.
Due to the smaller capacity of the pre-lithiated graphite (339 mAh g −1 -LiC 6), its full-cell shows much lower capacity than the case of Li 21 Si 5 (0.2–2 μm) (Fig. 6b), clearly indicating the advantage of the Li-rich Li-Si alloy as a promising lithium-containing negative electrode for next-generation high-energy LIBs.
The limitations in potential for the electroactive material of the negative electrode are less important than in the past thanks to the advent of 5 V electrode materials for the cathode in lithium-cell batteries. However, to maintain cell voltage, a deep study of new electrolyte–solvent combinations is required.
Mainly, the high solubility in aqueous electrolytes of the ZnO produced during cell discharge in the negative electrode favors a poor reproducibility of the electrode surface exposed to the electrolyte with risk of formation of zinc dendrites during charge. In order to avoid this problem, mixing with graphite has favorable effects.
Conventional Li-ion cells use a layered lithium transition metal oxide positive electrode (e.g. LiCoO 2) and a graphite negative electrode. When a Li-ion cell is charged, Li + ions deintercalate from the cathode and simultaneously intercalate into the graphite electrode.
In our study, we explored the use of Si 3 N 4 as an anode material for all-solid-state lithium-ion battery configuration, with lithium borohydride as the solid electrolyte and Li foil as the counter-electrode. Through galvanostatic charge/discharge profiling, we achieved a remarkable maximum reversible capacity of 832 mAh/g.
Si is a negative electrode material that forms an alloy via an alloying reaction with lithium (Li) ions. During the lithiation process, Si metal accepts electrons and Li ions, becomes electrically neutral, and facilitates alloying. Conversely, during delithiation, Li ions are extracted from the alloy, reverting the material to its original Si ...
Sodium ion batteries (SIBs) is considered as a promising alternative to the widely used lithium ion batteries in view of the abundant resources and uniform distribution of sodium on the earth. However, due to the lack of suitable anode and cathode materials, especially the anode materials with excellent performance, its practical application is trapped. In recent …
Silicon (Si) is recognized as a promising candidate for next-generation lithium-ion batteries (LIBs) owing to its high theoretical specific capacity (~4200 mAh g−1), low working potential (<0.4 V vs. Li/Li+), and abundant reserves. However, several challenges, such as severe volumetric changes (>300%) during lithiation/delithiation, unstable solid–electrolyte interphase …
Over the past few decades, lithium-ion batteries (LIBs) have served as a key enabler for the penetration of renewable energy into human society. However, satisfying the growing demand for both mobile and stationary energy storage remains challenging, despite an annual improvement of 7−8% in energy densities for LIBs technology. The pursuit of higher energy densities (>350 …
The use of Si-alloys as negative electrode materials in Li-ion cells can increase their energy density by as much as 20%, compared to conventional graphite electrodes. …
Lithium alloying materials are promising candidates to replace the current intercalation-type graphite negative electrode materials in lithium-ion batteries (LIBs) due to their high specific capacity and relatively low cost. Here, we investigate the electrochemical performance of TiSnSb regarding its charge/discharge cycling stability as a ...
In this chapter, the potentiality of nanosizing or nanostructuring the active electrode materials is discussed with examples for positive electrode compounds of low conductivity such as LiFePO 4 requiring carbon coating or negative electrodes such as silicon for which volume expansion during alloying with lithium is an issue. Even if going "nano" is not an …
npj Computational Materials - Chemomechanical modeling of lithiation-induced failure in high-volume-change electrode materials for lithium ion batteries Skip to main content Thank you for visiting ...
Synergy of Artificial SEI and Electrolyte Additive for Improved Performance of Silicon Electrodes in Li-Ion Batteries. ACS Applied Energy Materials 2024, Article ASAP. Shiwei Chen, Qingbo Cao, Bin Tang, Xinyu Yu, Zhen Zhou, Shou-Hang Bo, Yunlong Guo .
In this work, the feasibility of Li-rich Li-Si alloy is examined as a lithium-containing negative electrode material. Li-rich Li-Si alloy is prepared by the melt-solidification of...
Conversion/alloying materials, such as transition metal (TM)‐doped ZnO, are showing superior performance over pure ZnO due to the presence of the TM, enabling the reversible formation of Li 2 O due to the enhanced electronic conductivity within the single particle once being reduced to the metallic state upon lithiation. Herein, the impact of introducing Co …
One of the most interesting and challenging goals is to develop increased capacity electrode materials in order to increase the battery energy density. The conventional anode material, graphite, has a theoretical maximum capacity of 372 mAh/g, or a volumetric capacity of 800 Ah/L. Some carbons heat-treated below have a capacity as large as 700 …
Here we report that electrodes made of nanoparticles of transition-metal oxides (MO, where M is Co, Ni, Cu or Fe) demonstrate electrochemical capacities of 700 mA h g -1, with 100% capacity...
Lithium alloying materials are promising candidates to replace the current intercalation-type graphite negative electrode materials in lithium-ion batteries (LIBs) due to …
In this work, the feasibility of Li-rich Li-Si alloy is examined as a lithium-containing negative electrode material. Li-rich Li-Si alloy is prepared by the melt-solidification of...
The development of advanced rechargeable batteries for efficient energy storage finds one of its keys in the lithium-ion concept. The optimization of the Li-ion …
Sputter-deposited gemanium thin films were investigated as negative electrode material for lithium-ion batteries. X-ray diffraction, scanning electron microscopy, and...
Si is a negative electrode material that forms an alloy via an alloying reaction with lithium (Li) ions. During the lithiation process, Si metal accepts electrons and Li ions, becomes electrically neutral, and facilitates …
Here we report that electrodes made of nanoparticles of transition-metal oxides (MO, where M is Co, Ni, Cu or Fe) demonstrate electrochemical capacities of 700 mA h g -1, with 100% capacity...
The development of advanced rechargeable batteries for efficient energy storage finds one of its keys in the lithium-ion concept. The optimization of the Li-ion technology urgently needs improvement for the active material of the negative electrode, and many recent papers in the field support this tendency. Moreover, the diversity in the ...
Aluminum metal is known to be one of attractive negative electrode materials for lithium-ion batteries because of its electrochemical alloying reaction with lithium. We …
Aluminum metal is known to be one of attractive negative electrode materials for lithium-ion batteries because of its electrochemical alloying reaction with lithium. We investigate electrochemical properties of bare Al foil, double layered sheet of Al foil and graphite composite layer, and Al powder composite electrodes in non-aqueous Li cell ...
The use of Si-alloys as negative electrode materials in Li-ion cells can increase their energy density by as much as 20%, compared to conventional graphite electrodes. However, several technical challenges related with the massive volume expansion associated with Si-alloy lithiation have impeded their implementation. A number of advances in ...
Sn-based anode, as an alternative to traditional graphite anode LIBs materials, has attracted much attention because of its high specific capacity (Li 4.4 Sn is 993 mAg −1), environmental friendliness, high safety, and low cost, and it is considered to be one of the most promising alternative anode materials for the next generation of lithium ...
Mechanochemical synthesis of Si/Cu 3 Si-based composite as negative electrode materials for lithium ion battery is investigated. Results indicate that CuO is decomposed and alloyed with Si forming ...
Since the launch of lithium-ion batteries, elements (such as silicon, tin, or aluminum) that can be alloyed with lithium have been expected as anode materials, owing to larger capacity. However ...
Sputter-deposited gemanium thin films were investigated as negative electrode material for lithium-ion batteries. X-ray diffraction, scanning electron microscopy, and...
Synergy of Artificial SEI and Electrolyte Additive for Improved Performance of Silicon Electrodes in Li-Ion Batteries. ACS Applied Energy Materials 2024, Article ASAP. …
In our study, we explored the use of Si 3 N 4 as an anode material for all-solid-state lithium-ion battery configuration, with lithium borohydride as the solid electrolyte and Li …
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