綠能技術與電能交通載具的發展使人類對二次電池的需求不斷升高，高能量密度電池趨向於使用固態電解質與無陽極電池的研究發展，但需要克服庫倫效率低落、枝晶生長與低循環壽命等問題。本研究期望MOFs以其有序結構能使鋰離子在銅箔集電器表面均勻的沉積，探討使用ZIF-8作為介面層，對電池充放電的影響，在使用LiTFSI/DOL:DME(1:1 v/v%)+2% LiNO 3液態電解質鋰電池當中，我們觀察到ZIF-8能使鋰金屬均勻穩定的沉積與剝離，達到延長循環壽命的效果。在使用硫化物固態電解質鋰電池時，ZIF-8層的效果並不如液態電解質好，觀察到鋰金屬沉積在陽極時會穿透塗層，在塗層表面形成死鋰，本研究以Li-Nafion作為ZIF-8塗層的Binder，將ZIF-8塗層填充成連續相，避免ZIF-8層受鋰金屬的穿透，達到較好的庫倫效率、並抑制硫化物固態電解質與鋰金屬間的反應，使充放電有更穩定的電容量與更少電容量的衰退。在固態電解質電池中，循環壽命無法有效提升，可能因為塗層無法抵抗鋰金屬沉積與剝離所產生的機械應力，使塗層破裂時增加電極表面的不均勻性，促使鋰枝晶的生長而導致電池短路。

The advancement of renewable energy technology and electric vehicles has spurred a rising demand for secondary batteries. High-energy-density batteries commonly incorporate solid electrolytes and anode-free designs. However, these two designs must surmount challenges like low Coulombic efficiency, dendrite growth, and diminished cycle longevity.

This research aims to enhance battery performance by applying a ZIF-8 coating onto copper foil current collectors using diverse binders. Subsequently, these coated collectors are integrated into lithium metal half cells, employing both liquid and solid electrolytes to assess their impact on the charging and discharging processes. In the context of lithium batteries with LiTFSI/DOL:DME (1:1 In v/v\%)+2\%LiNO$_3$ liquid electrolyte, our findings indicate that ZIF-8 facilitates the uniform and stable deposition and stripping of lithium metal, thereby extending the battery's lifecycle.

Nonetheless, when utilizing a lithium battery furnished with a sulfide solid electrolyte, the ZIF-8 layer's efficacy is comparatively inferior to that observed with the liquid electrolyte. Upon depositing lithium metal onto the anode, there is an infiltration of the coating layer, leading to inactive lithium within the coating. Our investigation reveals that introducing Li-Nafion as a binder in the slurry results in a gap-free ZIF-8 coating. This strategic implementation mitigates the intrusion of lithium dendrites into the ZIF-8 layer, yielding improved Coulombic efficiency and hindering undesirable reactions between the sulfide solid electrolyte and lithium metal. Consequently, the charge and discharge processes exhibit enhanced stability in terms of capacity retention.

In the realm of solid-state electrolyte batteries, the challenge lies in the inability to significantly enhance cycle longevity. This could be attributed to the coating's insufficient resistance against the mechanical stress caused by lithium metal deposition and detachment. As the coating fissures, it induces irregularities on the electrode surface, thereby fostering the growth of lithium dendrites, which ultimately results in battery failure due to short-circuiting.

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