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As a holy grail in electrochemistry, both high‐power and high‐energy electrochemical energy storage system (EES) has always been a pursued dream. To simultaneously achieve the “both‐high” EES, a rational design of structure and composition for storage materials with characteristics of battery‐type and capacitor‐type storage is crucial. Herein, fluorine‐nitrogen co‐implanted carbon tubes (FNCT) have...
The urgent demand for high energy and safety storage devices is pushing the development of lithium metal batteries. However, unstable solid electrolyte interface (SEI) formation and uncontrollable lithium dendrite growth are still huge challenges for the practical use of lithium metal batteries. Herein, a composite polymer electrolyte (CPE) endowed with designated ion channels is fabricated by constructing...
Glymes are the most widely used electrolyte solvents in lithium–oxygen batteries (LOBs) due to their relatively high stability. However, their associated LOBs have long been plagued by large charge overpotential, which is closely related to the sluggish two‐electron Li2O2 oxidation mechanism. Here, we report a new electrolyte solvent—1,1,3,3‐tetramethylurea (TMU) for LOBs with high performance and...
Glymes are the most widely used electrolyte solvents in lithium–oxygen batteries (LOBs) due to their relatively high stability. However, their associated LOBs have long been plagued by large charge overpotential, which is closely related to the sluggish two‐electron Li2O2 oxidation mechanism. Here, we report a new electrolyte solvent—1,1,3,3‐tetramethylurea (TMU) for LOBs with high performance and...
Lithium‐rich layered oxides with high energy density are promising cathode materials, thus having attracted a large number of researchers. However, the materials cannot be commercialized for application so far. The crucial problem is the releasing of lattice oxygen at high voltage and resulting consequence, such as decomposition of electrolyte, irreversible phase transition of crystal structure, capacity...
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