Construction of LiCl/LiF/LiZn hybrid SEI interface achieving high-performance sulfide-based all-solid-state lithium metal batteries

Science China Chemistry, Journal Year: 2024, Volume and Issue: 67(6), P. 1990 - 2001

Published: May 11, 2024

Language: Английский

---

Anode‐Free Alkali Metal Batteries: From Laboratory to Practicability

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(44)

Published: May 19, 2024

Abstract Anode‐free alkali metal batteries (AFAMBs) are regarded as the most promising candidates for next‐generation high‐energy systems owing to their high safety, energy density, and low cost. However, restricted supply at cathode, severe dendrite growth, unstable electrode‐electrolyte interface result in Coulombic efficiency severely short cycle life. The optimization strategies mainly based on laboratory‐level coin cells, but effectiveness practical‐level is rarely discussed. This review presents a comprehensive overview of recent developments challenges AFAMBs from laboratory toward practicability. First, advances, major challenges, systematically summarized. More significantly, given vast differences battery structures operating conditions, gap between particularly emphasized this review. In addition, failure mechanisms have been outlined key parameters affecting performance identified. Finally, insightful perspectives practical presented, aiming provide helpful guidance subsequent basic research promote large‐scale commercial applications AFAMBs.

Language: Английский

---

Solvation Regulation Reinforces Anion‐Derived Inorganic‐Rich Interphase for High‐Performance Quasi‐Solid‐State Li Metal Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 29, 2024

Solid-state polymer lithium metal batteries are an important strategy for achieving high safety and energy density. However, the issue of Li dendrites inherent inferior interface greatly restricts practical application. Herein, this study introduces tris(2,2,2-trifluoroethyl)phosphate solvent with moderate solvation ability, which can not only complex

Language: Английский

---

In Situ Polymerization Facilitating Practical High‐Safety Quasi‐Solid‐State Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(27)

Published: April 18, 2024

Abstract Quasi‐solid‐state batteries (QSSBs) are gaining widespread attention as a promising solution to improve battery safety performance. However, the improvement and underlying mechanisms of QSSBs remain elusive. Herein, novel strategy combining high‐safety ethylene carbonate‐free liquid electrolyte in situ polymerization technique is proposed prepare practical QSSBs. The Ah‐level with LiNi 0.83 Co 0.11 Mn 0.06 O 2 cathode graphite–silicon anode demonstrate significantly improved features without sacrificing electrochemical As evidenced by accelerating rate calorimetry tests, exhibit increased self‐heating temperature onset ( T ), decreased rise during thermal runaway (TR). has maximum increase 48.4 °C compared conventional batteries. Moreover, do not undergo TR until 180 (even 200 °C) hot‐box presenting significant that run into at 130 °C. Systematic investigations show formed polymer skeleton effectively mitigates exothermic reactions between lithium salts lithiated anode, retards oxygen release from cathode, inhibits crosstalk elevated temperatures. findings offer an innovative for open up new sight building safer high‐energy‐density

Language: Английский

---

Enhancing solid-state lithium metal battery performance via indium-based modification of electrolytes and lithium metal surfaces: mechanistic insights and optimization

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 4, 2024

Language: Английский

---

Precisely succinonitrile-functionalized PEO electrolytes toward room-temperature all-solid-state lithium batteries

Science China Materials, Journal Year: 2024, Volume and Issue: 67(5), P. 1412 - 1421

Published: March 20, 2024

Polyethylene oxide) (PEO) polymer electrolytes have the potential for use in all-solid-state lithium-metal batteries (ASSLMBs). However, no effective rules been proposed to prepare PEO that overcome limitation being unusable at room temperature. In this study, based on C–H functionalization strategy, we design a highly ion-conductive electrolyte by directly covalently linking succinonitrile functional-groups with lithium coordination activity chains. The enhance disorder and mobility of chains while acting as sites fast ionic-conduction interchain, thus achieving dual optimization free volume around ions migration behavior. Due precise tuning functional-groups, functionalized exhibits enhanced ionic conductivity (>102 times), high transference number (~0.51) wide electrochemical window (~0.47 V). particular, PEO300k (1.01×10−4 S cm−1 25°C) enables stable operation temperature, providing path development polymer-based practical applications.

Language: Английский

---

In-Situ Polymerized High-Voltage Solid-State Lithium Metal Batteries with Dual-Reinforced Stable Interfaces

ACS Nano, Journal Year: 2024, Volume and Issue: 18(34), P. 23253 - 23264

Published: Aug. 15, 2024

Solid polymer electrolytes (SPEs) represent a pivotal advance toward high-energy solid-state lithium metal batteries. However, inadequate interfacial contact remains significant bottleneck, impeding scalability and application. Inadequate Recent efforts have focused on transforming liquid/solid interfaces into solid/solid ones through in situ polymerization, which shows potential especially reducing interface impedance. Here, we designed high-voltage SSLMBs with dual-reinforced stable by combining modification an polymerization technology inspired targeted effects medicine. Theoretical calculations time-of-flight secondary ion mass spectrometry (TOF-SIMS) analysis demonstrate that tetramethylene sulfone (TMS) bis(2,2,2-trifluoromethyl) carbonate (TFEC) exhibit selective adsorption at the of LiNi

Language: Английский

---

丁二腈增塑氟化聚碳酸酯基固态电解质用于4.5 V高压锂金属电池

Science China Materials, Journal Year: 2024, Volume and Issue: 67(5), P. 1393 - 1402

Published: April 8, 2024

Language: Английский

---

Layered K₂Mg₂TeO₆ Solid Electrolyte Enables Long-Life Solid-State Potassium Batteries

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(6), P. 2626 - 2632

Published: May 9, 2024

Solid-state potassium batteries are potentially supplementary to lithium in large-scale energy storage due their low cost, high safety, and density. However, potassium-ion solid electrolytes quite limited deliver lower ionic conductivities than or sodium counterparts. Herein, K2Mg2TeO6, an underexplored electrolyte with comparable conductivity, the capability suppress metallic K dendrites, mechanical-chemical electrochemical stabilities against anode, is reported. High of 1.65 × 10–6 S cm–1 at 20 °C 5.15 10–5 120 achieved. An ultrastable stripping/plating behavior implemented for 500 h under 0.02 mA cm–2, critical current density reaches 0.14 cm–2 60 °C. Cells coupling KC composite anode Prussian blue cathode good rate performance (1 C, ∼64 mAh g–1) long-term cycling stability 400 cycles a capacity retention 94%.

Language: Английский

---

The future of carbon anodes for lithium-ion batteries: The rational regulation of graphite interphase

Carbon Future, Journal Year: 2024, Volume and Issue: unknown, P. 9200017 - 9200017

Published: Aug. 1, 2024

Language: Английский

---