TEMPO-oxidized cellulose nanofiber hydrogel electrolyte for rechargeable Zn-ion batteries.

A hydrogel composed of TEMPO-oxidized cellulose and zinc perchlorate is proposed as an electrolyte for rechargeable Zn-ion battery. The non-flowable solid-like electrolyte has strong shear-thinning behavior, room temperature conductivity of ∼10 S cm, and stable Zn/electrolyte interphase. The Zn-ion gel-battery with a β-MnO cathode delivers over 100 mA h g at 1.

Scalable Li-Ion Battery with Metal/Metal Oxide Sulfur Cathode and Lithiated Silicon Oxide/Carbon Anode.

A Li-ion battery combines a cathode benefitting from Sn and MnO with high sulfur content, and a lithiated anode including fumed silica, few layer graphene (FLG) and amorphous carbon. This battery is considered a scalable version of the system based on lithium-sulfur (Li-S) conversion, since it exploits at the anode the Li-ion electrochemistry instead of Li-metal stripping/deposition. Sn and MnO are used as cathode additives to improve the electrochemical process, increase sulfur utilization, while mitigating the polysulfides loss typical of Li-S devices.

Toward Sustainable Li-S Battery Using Scalable Cathode and Safe Glyme-Based Electrolyte.

The search for safe electrolytes to promote the application of lithium-sulfur (Li-S) batteries may be supported by the investigation of viscous glyme solvents. Hence, electrolytes using nonflammable tetraethylene glycol dimethyl ether added by lowly viscous 1,3-dioxolane (DOL) are herein thoroughly investigated for sustainable Li-S cells. The electrolytes are characterized by low flammability, a thermal stability of ∼200 °C, ionic conductivity exceeding 10 S cm at 25 °C, a Li transference number of ∼0.

[Liver transplantation in adults : choosing the appropriate candidate and timing].

Liver transplantation is the best treatment option for patients with end-stage liver failure, as well as for various oncological (hepatic or extrahepatic), metabolic and genetic indications. Cirrhosis and its complications represent the most frequent indication for transplantation. This treatment option should be considered for cirrhotic patients with significant liver failure, the development of hepatocellular carcinoma or when complications linked to portal hypertension appear.

[Updated recommandations for the follow-up of a patient with cirrhosis].

A close collaboration between the general practitioner and the gastroenterologist is necessary to optimize the management of a patient with cirrhosis, a frequent and serious complication of chronic liver diseases. Both the treatment of the etiological factor of liver disease and the surveillance of potential complications of cirrhosis are key issues in the proper management of cirrhosis. Preventive measures aim at keeping the patient in a compensated form of cirrhosis which is associated with a better survival.