Hierarchically porous membranes for lithium rechargeable batteries: Recent progress and opportunities

Abstract

Hierarchically porous membranes offer an effective platform for facilitating mass transport and ion diffusion in energy storage systems and have the potential to achieve novel battery configurations. As the vital roles such as electrodes, interlayers, separators, and electrolytes in the battery systems, regulating the membrane porous structures and selecting appropriate membrane materials are significant for realizing high energy density, excellent rate capability, and long cycling stability of lithium rechargeable batteries (LRBs). In this review, we highlight recent progress on tunable synthesis of various porous membranes for LRB applications, and discuss how the membranes with hierarchically porous frameworks or ordered channels can be employed as electrodes/separators/interlayers for improved ion/electrolyte transport and charge transfer. We also present in‐depth discussion of the structure–property‐performance relationships of the membranes based on fundamental thermodynamic and kinetic aspects in membrane formation, transport mechanism, and cell configurations. Finally, the prospects of optimizing membrane development for advanced battery applications are discussed.

Metal‐organic framework derived porous structures towards lithium rechargeable batteries

“…The second batch synthesis introduced centrifugation at two points where the solvent was drained, as indicated by the red arrows in Figure 4. Optimization studies of the centrifugation time and rotational speed between the reaction and product washing (1) and between product washing and product washing (2) were also performed to obtain the best separation quality. The first centrifugation introduced into the synthesis route removes the reactive medium from the product and the second centrifugation separates the contaminated MeOH from the product after washing.…”

“…Some say that the battery of things era has arrived, saying that energy can now be used anytime, anywhere without being constrained by time and space through innovation in secondary battery technology. The largest demand for LIBs is coming from the need to power digital devices such as mobile phones, laptop computers, and the demand is expanding from portable information and communication devices to large‐scale applications such as space and aviation, electric vehicles, hybrid vehicles, and advanced energy storage systems for supporting electrical grids 1‐9 …”

“…The largest demand for LIBs is coming from the need to power digital devices such as mobile phones, laptop computers, and the demand is expanding from portable information and communication devices to large-scale applications such as space and aviation, electric vehicles, hybrid vehicles, and advanced energy storage systems for supporting electrical grids. [1][2][3][4][5][6][7][8][9] Figure 1 is a schematic diagram showing the history and development direction of secondary batteries starting with lead-acid batteries. In recent years, the market has been growing, largely based on the development of electric vehicles.…”

Grand challenges in membrane applications—Energy

“…This is because they provide the functionality to isolate the cathode and anode as well as to conduct charge-carriers to complete the internal circuit (Guiver, 2022). The membranes must cater to the needs of high chemical and mechanical stability, high selectivity and conductivity, and low cost (Lee et al, 2014;Xiong et al, 2021;Li et al, 2022), since they play a decisive role in a device's performance and reliability.…”

Boosting the Temperature Adaptability of Lithium Metal Batteries via a Moisture/Acid‐Purified, Ion‐Diffusion Accelerated Separator

“…Surface coating is a common strategy to modify the physicochemical properties of the separators such as ionic conductivity, lithium transference number, porosity, and electrolyte wettability. [31,32] If the interfacial behavior of electrodes can be regulated by constructing a multifunctional coating on the separator as in the contact with the electrodes, then the complex electrode innovation and slurry formulation optimization could be achieved through the facile separator modification in a lower cost. Herein, we present a hetero-layered, namely the Janusfaced separator with asymmetric functional coatings to boost the cycling endurance, rate behavior, shelf life, and environmental adaptability of the LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811)|thinlayer Li foil cell prototyping.…”