A duplex electrode architecture (double-layer electrode, DLE) is constructed to alleviate concentration polarization while the negative was lithiated. smaller local voltage deviation in after lithiation and...

Though lithium-ion batteries (LIBs) have seen a meteoric rise in worldwide deployment over the last decade, they should be further advanced constant demand of higher rate capability and wider temperature adaptability. A solid electrolyte interphase (SEI) is essential part LIBs, determining charge–discharge performance degradation behavior. Herein, improvement SEI properties achieved by regulating electrochemical double layer structure with nonsacrificial additive, that is, lithium...

Abstract The chemical composition significantly affects the inherent electrical surface properties of graphite and SiO electrodes, which further, alters thermal stability solid electrolyte interphase (SEI) on negative electrodes. Because work function edge plane is lower than that 2 ‐dominant electrode when initially lithiated, charge transfer toward hindered by high . Given increased solubility SEI film SiO, makes it vulnerable to self‐discharge at higher temperatures graphite, electrodes...

Formation of the solid electrolyte interphase (SEI) on hard carbon electrode significantly influences performance batteries, in terms cycle performance, calendar life, and power characteristics. In sodium-ion batteries (SIBs), energetically inferior SEI formation mechanism, compared with lithium-ion (LIBs), results a thin, thermally vulnerable, less passivating electrode. Notably, for SIBs have higher lowest unoccupied molecular orbital (LUMO) energy level Na-solvated ethylene carbonate...

Abstract Despite considerable research efforts of lithium metal batteries (LMBs) in various aspects are performed, however the application as power sources for transport vehicles remains challenging from safety concerns and durability LMBs. Therefore, to improve electrochemical performance LMBs, a sophisticated separator composed decabromodiphenyl ethane (DBDPE) CaO nanocomposite is engineered concurrently impart flame‐retardant properties enhance Li‐ion transport. During normal operation,...

The presented work focuses on reinforcing the interface of a silicon electrode, that is thermoelectrochemical activation solid electrolyte interphase formation, which improves cycleability cutting-edge lithium-ion battery chemistry.

Abstract Individually functionalized cation‐ and anion‐based ionic additives are designed to mitigate the interfacial side reaction occurring on both positive negative electrode surfaces. By applying 1‐phenyl‐1 H ‐imidazole‐3‐ium trifluoromethanesulfonate as a surface‐targeting electrolyte additive, reciprocal failure from multiple addition applications is theoretically prevented. Selective interface modification performed using by migration of cations anions surfaces, respectively. A...

Abstract Lithium–sulfur batteries (LSBs) have drawn significant attention owing to their high theoretical discharge capacity and energy density. However, the dissolution of long‐chain polysulfides into electrolyte during charge process (“shuttle effect”) results in fast fading inferior electrochemical performance. In this study, Mn 2 O 3 with an ordered mesoporous structure (OM‐Mn ) was designed as a cathode host for LSBs via KIT‐6 hard templating, effectively inhibit polysulfide shuttle...

Abstract The persistent decomposition of electrolytes on graphite and silicon electrodes in lithium‐ion batteries (LIBs) is typically mitigated by the formation a solid electrolyte interphase (SEI). However, inadequate chemo‐mechanical degradation SEI leads to re‐exposure electrode electrolyte, contributing deterioration LIBs. To address this issue, tris (2,4‐pentanedionato)indium(III) (InAc) incorporated into work function tailoring additive. While conventional additives strengthen...

Magnetic ordering of lithium iron phosphate (LFP) electrode highly improves power performances LFP batteries by modulating the architecture.

Sulfated-zirconia superacid enhances the performance of lithium-metal battery markedly by increasing lithium-ion transference number and modifying interfacial composition.

Abstract Voids are widely disseminated in a powder when mixed, and hence the typical dry‐electrode preparation method yields sparse because external pressure applied to surface of mixed is not evenly distributed. Consequently, particle cracking void remnants appear electrode after calendaring. This study introduces practically applicable bi‐functionalized additive simultaneously reinforce chemo‐mechanical properties millimeter‐thick dry electrodes. The agyrodite Li 6 PS 5 Cl solid...

The lithium (Li) metal anode is highly desirable for high-energy density batteries. During prolonged Li plating-stripping, however, dendritic formation and growth are probabilistically high, allowing physical contact between the two electrodes, which results in a cell short-circuit. Engineering separator promising facile way to suppress growth. When conventional coating approach applied, it usually sacrifices bare structure severely increases thickness, ultimately decreasing volumetric...

For realizing all-solid-state batteries (ASSBs), it is highly desirable to develop a robust solid electrolyte (SE) that has exceptional ionic conductivity and electrochemical stability at room temperature. While argyrodite-type Li6PS5Cl (LPSCl) SE garnered attention for its relatively high (∼3.19 × 10-3 S cm-1), tends emit hydrogen sulfide (H2S) in the presence of moisture, which can hinder performance ASSBs. To address this issue, researchers are exploring approaches promote structural...

Antimony selenide and tin have been investigated compared as model systems to elucidate the fundamental aspects of matrix formation distribution in conversion-type electrodes for sodium-ion batteries. Through comprehensive mechanistic studies, we reveal two distinct structural evolution pathways during sodiation process. The system exhibits a conventional conversion reaction architecture, characterized by discrete metallic nanoparticles heterogeneously dispersed within an ionic matrix. In...

In the pursuit to increase energy density of lithium-ion batteries (LIBs), considerable efforts have focused on developing high-capacity cathode materials. While Ni-rich (Ni ≥ 80 at. %) layered materials are considered a viable commercial option, surface engineering is crucial for enhancing their cycle performance successful implementation in LIBs. Various functional been explored effective protection and stabilization reduce interfacial resistance enhance structural stability this context,...

All-solid-state batteries (ASSBs), which utilize non-flammable solid electrolytes, are increasingly recognized as a promising next-generation technology. ASSBs expected to offer superior safety compared conventional lithium-ion while enabling...

Abstract As the demand for high‐performance energy storage solutions increases, lithium‐ion batteries (LIBs) remain leading technology in electric vehicles (EVs) and portable electronics. However, traditional wet‐casting electrode (WCE) processes have inherent limitations, such as binder migration environmental concerns associated with solvent use. In this study, a high‐loading dry‐casting (DCE) approach is proposed to overcome these challenges by eliminating use improving uniformity. The...

The sectional utilization of the Si negative electrode resulted from appropriate physical treatment pouch cell based on distribution electrical resistance. Active materials loaded near tab have low resistance, leading to a higher degree lithiation in tab. This localized large cells causes significant polarization growth due mechanical and interphasial degradation. In contrast, active material farther does not participate electrochemical reaction its high Li plating near-tab-loaded particles...

Lithium–sulfur (Li–S) batteries have received considerable attention as promising candidates for next‐generation because of their high theoretical energy density (≈2600 Wh kg −1 ). However, despite abundant active material and capacity, the commercialization Li–S has been hindered by several difficulties such shuttle effect lithium polysulfides (LiPS). In this study, we designed poly (vinylidene fluoride)–graft–poly (acrylic acid) (PVDF –g –PAA) a novel binder to realize sulfur loading...

Thermal degradation mechanisms of solid electrolyte interphases (SEIs) on graphite and SiO electrodes are examined at moderately elevated temperatures (60–130°C). Of the two possible mechanisms, attack phosphorus pentafluoride (PF5), which is generated by thermal decomposition lithium hexafluorophosphate (LiPF6) used as salt, dominates over SEI layer itself this temperature range. Once damaged, film deposition takes place newly exposed electrode surfaces due to loss passivating ability; a...