All‐in‐One Structured Lithium‐Metal Battery

Abstract

3D batteries possess apparent advantage in electrochemical ion‐transport kinetics than the conventional‐structured batteries. However, due to the special electrode configuration and fabrication complexity, 3D battery design has inherent issue of mechanical stability and only succeeds in microsystems, far from ideal. Herein, a high‐stable, all‐in‐one structured 3D lithium‐metal battery is designed which consists of paralleled microcell arrays. Fast ion‐transport kinetics in full cell level can not only address the key issue of lithium dendrites in anode but also improve electrochemical performance of cathode. As a result, the resultant lithium metal anode acquires long‐term stability of 1000‐cycle life at a high current density of 10 mA cm−2. Also the all‐in‐one structured lithium metal battery has general applicability for various cathodic materials and delivers significantly improved rate and cycling performance, as well as high areal capacity up to 10.4 mAh cm−2.

Synergistic theoretical and experimental study on the ion dynamics of bis(trifluoromethanesulfonyl)imide-based alkali metal salts for solid polymer electrolytes

“…Furthermore, demand for higher energy density, increased sustainability, abundant and economically viable energy storage systems have led to a surge in the exploration for alternative battery technologies beyond LIBs in recent years. [5][6][7] Post-lithium-ion batteries (post-LIBs), such as lithium-metal batteries (LMBs), [8][9][10][11] sodium-ion batteries (NIBs), 4,12,13 potassium-ion batteries (KIBs), [14][15][16][17] and cesium-ion batteries (CIBs) [18][19][20] are gaining momentum. Numerous advantages of these post-LIB technologies include higher redox potentials; Li + /Li (À3.04 V vs. SHE), Na + /Na (À2.71 V vs. SHE), K + /K (À2.93 V vs. SHE), and Cs + /Cs (À3.03 V vs. SHE), along with superior theoretical specific capacities, 21 an abundance of both sodium and potassium in the Earth's crust posing an attractively low cost alternative to lithium, and the higher diffusion coefficients (low diffusion barrier) of cesium-based electrodes resulting in hindered dendrite formation for cesium-ion batteries.…”

A New In Situ Prepared MOF‐Natural Polymer Composite Electrolyte for Solid Lithium Metal Batteries with Superior High‐ Rate Capability and Long‐Term Cycling Stability at Ultrahigh Current Density

“…Before and after batteries operation, the ZIF-67-LA-PAM shows a much smaller impedance than the LA-PAM and the Celgard 2500 (the semi-circular arc at medium and high frequencies corresponds to the overlap of its interface impedance and carrier transfer impedance). [17] After battery operation for 48 h, the ZIF-67-LA-PAM appears at [15] 2, [3a] 3, [10a] 4, [18] 5, [19] 6, [20] and 7. [21] Warburg impedance at low frequency, which is due to the transport diffusion of lithium ions during operation.…”

Heteroatom-doped hierarchically porous thick bulk carbon derived from a Pleurotus eryngii/lignin composite: a free-standing and high mass loading electrode for high-energy-density storage

“…In nature, a hierarchically porous structure is commonly observed in natural plants, which facilitates water and nutrient transportation. [17][18][19] Recently, numerous studies have carbonized these natural biomasses to produce carbon electrodes featuring a hierarchically porous structure, such as a waste Camellia oleifera shell, camellia husk, etc. [20][21][22] These electrodes have subsequently been employed in high energy density storage devices.…”