Highly conductive and electrochemically stable plasticized blend
The plasticized membrane shows high value of ionic conductivity about 10 2 S cm 1, electrochemical stability window of about 6.4 V vs. Li/Li + with the platinum electrode and almost stable discharge capacity with cycle numbers, which make it very promising for lithium ion battery applications.
Enhanced ionic conductivity of intrinsic solid polymer electrolytes
The electrochemical stability window of the solid polymer electrolyte was measured by cyclic voltammetry (EG&G model 270 potentiostat) at 30 °C. A nickel plate (Aldrich, 0.125 mm thick, >99.9%) was used for a working electrode and a lithium metal foil (FMC Co.) for a counter and reference electrode.
An acrylate-based quasi-solid polymer electrolyte
The electrochemical stability window of the polymer electrolyte bCN-SPE55% and the polymer matrix without plasticizer (bCN-SPE0%) was investigated by LSV at 25 °C. Similar PEO-based SPEs with polymerized acrylate networks and nitrile-bearing compounds as plasticizers show electrochemical stability windows in the range of 4.5–4.8 V vs. Li/Li + [ 19 , 23 , 56 , 57 ].
Polyacrylonitrile Nanofiber-Reinforced Flexible Single-Ion Conducting
Single-ion conducting polymer electrolytes (SIPEs) can be formed by anchoring charge delocalized anions on the side chains of a crosslinked polymer matrix, thereby eliminating the severe concentration polarization effect in conventional dual-ion polymer electrolytes. Addition of a plasticizer into the polymer matrix confers advantages of both liquid and solid electrolytes. However, plasticized
A review of polymer electrolytes: fundamental, approaches and
In this paper, we review different types of polymer electrolytes, recent approaches and technological applications of polymer electrolytes. The report first discusses the characteristics, advantages and applications for three types of polymer electrolytes: gel polymer electrolytes, solid polymer electrolytes and composite polymer electrolytes. Next, we discuss the features and performance of
- Are flexible polymer electrolyte films suitable for advanced lithium metal anode batteries?
- Free-standing, flexible polymer electrolyte films with superionic conductivity were demonstrated. By combining a multiple lithium salts design, the polymer electrolyte exhibited outstanding electrochemical stability in battery tests. The method developed in this work paves a way to design novel SPEs for advanced lithium metal anode batteries.
- What type of plasticizer is used to make a gel-like electrolyte?
- Common organic liquid plasticizers including ethylene carbonate (EC), 41 propylene carbonate (PC), 43 and dimethyl carbonate (DMC) 43 applied into the SPE typically result in the formation of gel-like electrolytes. A special class of plasticizers was plastic crystal materials such as succinonitrile (SN).
- How stable is a dual-salt polymer electrolyte?
- The synergistic effect of salts gave the dual-salt polymer electrolyte outstanding electrochemical stability with a wide electrochemical window of 0–4.5 V (versus Li/Li +). The lithium stripping/plating experiments indicated that the polymer electrolyte could be safely cycled under current density from 0.05 to 0.5 mA/cm 2.
- Are dual-salt based polymer electrolyte films ionic?
- The free-standing, flexible, dual-salt-based polymer electrolyte films with superionic conductivity (1.0 mS/cm) at 30°C have been demonstrated. The synergistic effect of salts gave the dual-salt polymer electrolyte outstanding electrochemical stability with a wide electrochemical window of 0–4.5 V (versus Li/Li +).
- Can a polymer electrolyte be integrated with a casted cathode?
- In this work, the precursor polymer electrolyte (including low-molecular-weight prepolymer PEGDA, lithium salt, and plasticizer) was infiltrated into the casted cathode materials. Due to the low molecular weight of the non-crosslinked PEGDA, the electrolyte was a viscous liquid that could be integrated with active materials.
- Can a polymer electrolyte be safely cycled under current density?
- The lithium stripping/plating experiments indicated that the polymer electrolyte could be safely cycled under current density from 0.05 to 0.5 mA/cm 2. The dual-salt polymer electrolyte-based cells exhibited excellent average coulombic efficiency of ∼99.99% in the first 370 cycles.
