The sluggish lithium diffusion at the electrode/electrolyte interface is one of the main obstacles to achieve superior rate capability of Li metal anodes for rechargeable batteries. Herein, a dense and uniform inorganic solid electrolyte interface (SEI) layer composed of ZrO 2 , Li 2 O, Li 3 N, and LiN x O y is constructed on the surface of Li metal via the spontaneous reaction between Li metal and zirconyl nitrate (ZrO(NO 3 ) 2 ) solution in dimethyl sulfoxide. The abundant grain boundaries in the artificial SEI created by the multicomponent enable the rapid diffusion of Li ions at the interface. As a result, the Li metal anode treated with zirconyl nitrate (LiZrO(NO 3 ) 2 @Li) delivers a stable cycle performance of over 550 h at a high current density of 10 mA cm −2 and a high areal capacity of 10 mAh cm −2 . When paired with a high-loading LiCoO 2 cathode (19 mg cm −2 ), the LiZrO(NO 3 ) 2 @Li anode shows much enhanced rate performance and long-term cycle stability without Li dendrite formation. The construction of an inorganic SEI layer with a high density of grain boundary provides new insights for the design of high-rate and dendrite-free Li metal anodes for high-energy-density batteries.

The uncontrollable dendrite growth of Li metal anode leads to poor cycle stability and safety concerns, hindering its utilization in high energy density batteries. Herein, aphenoxy radical Spiro-O8 is proposed as an artificial protection film for Li metal anode owingt oi ts excellent filmforming capability and remarkable ionic conductivity.A spontaneous redoxr eaction between the Spiro-O8 and Li metal results in the formation of au niform and highly ionic conductive organic film in the bottom. Meanwhile,the phenoxy radicals on surface of Spiro-O8 facilitate the decomposition of Li salt upon exposed to the ether electrolyte and lead the formation of LiF film on the top.Arising from the synergistic effects of inner high ionic conductive film and outer rigid film, stable Li plating/stripping can be realized at ah igh current density (4000 cycles at 10 mA cm À2 )a nd ah igh areal capacity of 5mAh cm À2 for 550 hwith an ultrahigh Li utilization rate of 54.6 %. As aproof of concept, this work shows afacile strategy to rationally fabricate dual-layered interfaces for Li metal anodes.

The dissolution of LiNO3 in carbonate electrolytes is achieved by introducing pyridine as a new carrier solvent owing to its higher Gutmann donor number than NO3-. The Li metal anode...

Constructing a stable artificial solid-electrolyte interphase has become one of the most effective strategies to overcome the poor reversibility of lithium metal anode, yet the protection role is still insufficient at elevated current densities over 10 mA cm−2 and large areal capacities over 10 mAh cm−2. Herein, we propose a dynamic gel with reversible imine groups, which is prepared via a cross linking reaction between flexible dibenzaldehyde-terminated telechelic poly(ethylene glycol) and rigid chitosan, to fabricate a protective layer for Li metal anode. The as-prepared artificial film shows combined merits of high Young’s modulus, strong ductility and high ionic conductivity. When the artificial film is fabricated on a lithium metal anode, the thin protective layer shows a dense and uniform surface owing to the interactions between the abundant polar groups and lithium metal. Besides, the polar groups in the artificial film can homogenize the distribution of Li+ at the electrode/electrolyte interface. As a result, cycle stability over 3200 h under an areal capacity of 10 mAh cm−2 and a current density of 10 mA cm−2 has been obtained for the protected lithium metal anodes. Moreover, cycling stability and rate capability has been also improved in the full cells.

The uncontrollable dendrite growth of Li metal anode leads to poor cycle stability and safety concerns, hindering its utilization in high energy density batteries. Herein, a phenoxy radical Spiro‐O8 is proposed as an artificial protection film for Li metal anode owing to its excellent film‐forming capability and remarkable ionic conductivity. A spontaneous redox reaction between the Spiro‐O8 and Li metal results in the formation of a uniform and highly ionic conductive organic film in the bottom. Meanwhile, the phenoxy radicals on surface of Spiro‐O8 facilitate the decomposition of Li salt upon exposed to the ether electrolyte and lead the formation of LiF film on the top. Arising from the synergistic effects of inner high ionic conductive film and outer rigid film, stable Li plating/stripping can be realized at a high current density (4000 cycles at 10 mA cm−2) and a high areal capacity of 5 mAh cm−2 for 550 h with an ultrahigh Li utilization rate of 54.6 %. As a proof of concept, this work shows a facile strategy to rationally fabricate dual‐layered interfaces for Li metal anodes.

The nonuniform ion/charge distribution and slow Li-ion diffusion at the Li metal/electrolyte interface lead to uncontrollable dendrites growth and inferior cycling stability. Herein, a simple mechanical rolling method is introduced to construct a mixed conductive protective layer composed of LiI and Cu on the Li metal surface through the replacement reaction between CuI nanoflake arrays and metallic Li. LiI can promote Li + transportation across the interface, achieving homogeneous Li + flux and suppressing the growth of Li dendrite, while the homogeneously dispersed Cu nanoparticles can offer abundant nucleation sites for Li deposition, resulting in a remarkably homogenized charge distribution. As expected, Li metal with the LiI/Cu protection layer (LiI/Cu@Li) exhibits a significantly prolonged lifespan over 350 h with slight polarization at a deposition capacity of 3 mAh cm −2 in the carbonate electrolyte. Besides, when matched with high mass loading LiFePO 4 cathodes (20 mg cm −2 ), the LiI/Cu@Li anodes exhibit much improved cycle stability and rate performance. Highly scalable preparation processes as well as the impressive electrochemical performances in half cells and full cells indicate the potential application of the LiI/Cu@Li anode.

The subject of this article is to analyze the financial statement and corporate strategy of Coca-Cola (referred to as KO) Company during the COVID 19 epidemic. The two main analysis methods are quantitative and qualitative analysis. The quantitative analysis uses ratios and Dupont to analyze Coca-Cola's ratio, looking at the impact of the epidemic on KO from the perspective of growth, profitability, liquidity, efficiency, and solvency. The qualitative analysis uses the SWOT and Porter five forces analysis method from the traditional accounting perspective to initially analyze the internal and external environment of Coca-Cola and uses the Balanced Score Card (BSC) from the management accounting perspective to interpret the advantages and disadvantages of the corporate strategy. The quantitative analysis results show that due to the epidemic's impact, KO's ability to repay debt and efficiency of using financial resources has been improved under the condition of the decline of KO's growth and profitability. But its finances and goodwill may suffer as a result of KO's acquisition problems. Qualitative analysis results show that KO's business processes are highly systematic, and strategic costs are reduced. In addition, the main risks of KO lie in the threat from competitors and the lack of innovation ability. Under the influence of the epidemic, its key profit indicators and debt ratio showed a negative trend. It failed to reach its financial target due to its special risk avoidance strategy of debt ratio. But it has excelled at attracting and retaining customers. This paper provides guidance and reference for future scholars to study KO's management and financial performance during the epidemic.