Discharge Performance of the Non-rechargeable Lithium-air Batteries with a Waterproof and Breathable Film in an Open Environment

Abstract

Due to its high energy density, lithium-air battery has been one of the research hotspots. However, there are still many issues that need to be addressed, especially when working in an open environment. In this paper, the pouch-type non-rechargeable lithium-air batteries were fabricated by using high loading air electrode and waterproof and breathable PDMS film, and their discharge performance in an open environment was studied. Due to the high waterproof and breathable performance of PDMS, the battery has better discharge and storage performance. The discharge time is more than

From Li–O2 to Li–Air Batteries: Challenges and Progress on Oxygen-Permeable Membranes

“…If water breaches the membrane and reaches the Li anode and electrolyte, their composition, conductivity, and chemical stability may be compromised. 43 This could instigate undesirable side reactions, leading to the degradation of the Li anode and electrolyte, ultimately diminishing battery performance and lifespan. A water-proof membrane serves as a barrier, mitigating these concerns by averting unwanted interactions among water, the Li anode, electrolyte, and other battery components.…”

“…Moreover, membrane degradation can hinder efficient oxygen transport, diminishing LAB performance. 43 An electrolyteproof membrane ensures unhindered oxygen transport, enabling stable battery operation at optimal levels.…”

“…Recent efforts have focused on optimizing the fabrication process of PDMS (Figure 3f), resulting in promising discharge results despite exposure to open ambient air. 43 However, further improvements are needed to enhance PDMS functionality and address challenges related to electrolyte evaporation and water vapor ingress.…”

“…Currently, LABs typically employ a Li metal anode and aprotic liquid electrolytes, both vulnerable to water contamination. If water breaches the membrane and reaches the Li anode and electrolyte, their composition, conductivity, and chemical stability may be compromised . This could instigate undesirable side reactions, leading to the degradation of the Li anode and electrolyte, ultimately diminishing battery performance and lifespan.…”

“…Membranes that withstand electrolyte exposure without degradation exhibit extended lifespans, reducing the need for frequent replacements and maintenance. Moreover, membrane degradation can hinder efficient oxygen transport, diminishing LAB performance . An electrolyte-proof membrane ensures unhindered oxygen transport, enabling stable battery operation at optimal levels.…”