2019年1月8日 · The lack of a reliable rechargeable lithium metal (Li-metal) anode is a critical bottleneck for next-generation batteries. The unique mechanical properties of lithium influence the dynamic evolution of Li-metal anodes during cycling.

2020年3月1日 · Li metal demonstrates significant strain rate sensitivity to deformation from nano to bulk scales (with stress exponent n = 6.9 measured from nanoindentation and n = 6.55 from bulk tensile testing). We discuss the implications of Li's mechanical properties on dendrite formation during cycling of Li metal anodes.

2023年6月1日 · Lithium (Li) metal anodes are under active investigation to boost the energy density of rechargeable lithium-ion batteries (LIBs). In developing such anodes, uncontrolled Li plating/stripping remains a critical issue, which calls for a deep understanding of the deformation characteristics of Li.

2020年3月1日 · Li metal demonstrates significant strain rate sensitivity to deformation from nano to bulk scales (with stress exponent n = 6.9 measured from nanoindentation and n = 6.55 from bulk tensile testing). We discuss the implications of Li's mechanical properties on dendrite formation during cycling of Li metal anodes.

2023年5月3日 · Figure 6.4: Correlation between the mechanical strain rate (s-1) of lithium of stripping (discharge) and plating (charge) in a lithium electrode and the areal current (A/cm2) of a LMSSB battery pack

2018年10月3日 · This study seeks to support the rational design of future LMSSB for long life batteries by accurately quantifying the elastic constants and time-dependent (creep) mechanical behavior of lithium metal.

2024年11月18日 · The strain evolution of lithium metal specimens during the tensile process is captured by the digital image correlation (DIC) technique. For molecular dynamics (MD) simulations, stress–strain curves of lithium metal with rigid impurities are obtained to compare with the experimental results.

2019年1月1日 · To contextualize the role of creep on Li-metal anode behavior, examples are discussed for solid-state batteries, "dead" Li, and protective coatings on Li anodes. This work suggests new...

Articlehistory: Received 30October2020 Revised 6 January 2021 Accepted 5February2021 Available online11February2021 abstract Althoughlithium-metal anodesarebeingextensivelyexaminedinresearch projects aiming at pushing Keywords: Pure lithium Lithium-metal battery Mechanical properties Microstructure Plasticity Fracture theenergydensity

2019年1月8日 · It is shown that as a result of nanopatterning, Li metal surface underwent work hardening due to residual compressive stress, which can help to improve cycle lifetime of LIBs with Li anodes and obtain very high energy densities.