Remove Carbon Remove Polymer Remove Sodium
article thumbnail

New class of coordination polymers for high-performance Li-, Na- and K-ion storage

Green Car Congress

Researchers at the Université catholique de Louvain in Belgium have designed and synthesized a new class of electrically conducting anionic coordination polymers for all practically relevant alkali-cation storage. V in lithium-, sodium-, or potassium-based cells. Wang et al. doi: 10.1039/D2EE00566B.

Li-ion 273
article thumbnail

Researchers show that inherent lithium ions in bioderived borate polymer enhance extreme fast charging capability in graphite anodes

Green Car Congress

The binder material—a novel aqueous borate type bio-based polymer with inherent Li + ions designed as an SEI forming binder for graphite—leads to improved diffusion of desolvated Li + ions across the solid electrolyte interface (SEI) and within the anode material and yields high conductivity, low impedance, and good stability.

article thumbnail

PNNL team develops sodium-manganese oxide electrodes for sodium-ion rechargeable batteries

Green Car Congress

Sodium is seen by some as a promising alternative, but the sodium-sulfur batteries currently in use run at temperatures above 300 °C, making them less energy efficient and safe than batteries that run at ambient temperatures. Sodium-ion batteries have been discussed in the literature. for some time. —Cao et al.

Sodium 218
article thumbnail

Polymer microcapsules with liquid carbonate cores and silicone shells offer a new approach to carbon capture

Green Car Congress

The approach, described in a paper in the journal Nature Communications , could be an important advance in carbon capture and sequestration (CCS). They have significant performance advantages over the carbon-absorbing materials used in current CCS technology. carbon dioxide uptake and release over repeated cycles.

Polymer 150
article thumbnail

New multifunctional polymer binder achieves theoretical capacity of LiFePO4 Li-ion batteries without additives

Green Car Congress

Researchers led by a team from Griffith University in Australia have developed a multifunctional polymer binder that not only maintains the outstanding binding capabilities of sodium alginate but also enhances the mechanical integrity and lithium-ion diffusion coefficient in a LiFePO 4 (LFP) electrode during the operation of the batteries.

Li-ion 150
article thumbnail

Univ. of Texas researchers propose lithium- or sodium-water batteries as next generation of high-capacity battery technology; applicable for EVs and grid storage

Green Car Congress

John Goodenough, are proposing a strategy for high-capacity next-generation alkali (lithium or sodium)-ion batteries using water-soluble redox couples as the cathode. The present sodium-sulfur battery operates above 300 °C. A = lithium or sodium (Li or Na), M represents a metal and 1 ≤ n < z. —Lu et al.

Sodium 218
article thumbnail

Penn State team proposes cold sintering as way to improve solid-state battery production

Green Car Congress

Current battery electrodes are a mixture of active material, carbon, and the liquid electrolyte. The best way to give ions a path is by introducing a solid electrolyte, which requires sintering, and conventional sintering is too hot for carbon and active material, causing them to degrade. Sintered triphasic cathode.

Batteries 370