Hybrid polyion complex micelles enabling high-performance lithium-metal batteries with universal carbonates

Modular Synthesis of PEG-Dendritic Block Copolymers by Thermal Azide–Alkyne Cycloaddition with Internal Alkynes and Evaluation of their Self-Assembly for Drug Delivery Applications

“…Encouraged by this result, we decided to challenge PEG-[G4]-Suc in the formation of hybrid polyion complexes (HPIC), a specific type of PIC prepared by complexation of anionic block copolymers to multivalent metal cations. , Upon complexation, the electrostatic neutralization of the polyanion leads to hydrophobization and spontaneous self-assembly into diverse structural morphologies depending on the length of the blocks. HPIC have been developed as powerful contrast agents for MRI, templates for the preparation of core cross-linked micelles and metal nanoparticles, − in the construction of Li batteries or as platforms for renewable catalysis …”

“…52,53 Upon complexation, the electrostatic neutralization of the polyanion leads to hydrophobization and spontaneous selfassembly into diverse structural morphologies depending on the length of the blocks. HPIC have been developed as powerful contrast agents for MRI, 54 templates for the preparation of core cross-linked micelles 55 and metal nanoparticles, 56−58 in the construction of Li batteries 59 or as platforms for renewable catalysis. 60 To test the formation of HPIC, an equimolecular amount of calcium ions (16 equiv) was added to a solution of PEG-[G4]-Suc (16 terminal mercaptosuccinic acids) in 10 mM PB.…”

Highly Reversible Lithium Host Materials for High‐Energy‐Density Anode‐Free Lithium Metal Batteries

“…The presence of Li 2 O and Li 2 O 2 influences mechanical and ion‐conduction properties and regulates the formation of Ag‐Li alloys with excellent Li ion conductivity. [ 19b,27 ] In the N 1s spectrum, the peaks corresponding to Li 3 N and nitrites at 398.7 and 404.2 eV show the formation of an N‐rich SEI layer, which formed an initial spherical Li nucleus and mostly planar and uniform layer without apparent cracks (Figure S6, Supporting Information). [ 28 ] Similar result was confirmed in XRD analysis (Figure S7, Supporting Information).…”

“…[ 18 ] As a result, various attempts have been made to fabricate an electrode including LiNO 3 to realize high‐energy‐density batteries with high voltage cathodes. [ 19 ] To enhance the energy density and stabilize anode‐free batteries, we built BPEI‐Ag/LiNO 3 electrode on Cu current collector (Figure 1b). Our technique has significant advantages that address the stable SEI layer caused by LiNO 3 breakdown and offers Ag‐Li alloy for a stable Li reservoir, and these processes are verified using density functional theory (DFT) calculation.…”

Research progress in stable interfacial constructions between composite polymer electrolytes and electrodes

“…Building an interfacial layer on the surface of the lithium metal anode is a very effective way to improve the stability of the CPE-Li interface. [152][153][154][155][156][157][158] On the one hand, the coating layer induces uniform lithium deposition and slows down the growth rate of dendrites, including organics, inorganics, composites, etc. On the other hand, an artificial SEI layer can be created with desired properties by using additives, through in situ polymerization or crosslinking reactions.…”