The largest salt flow in the underground salt cavern was a breakthrough

EWE, a German energy company, announced the progress made in the project of constructing the world's largest flow battery using underground salt caverns in northwestern Germany. The polymer developed by researchers for this purpose has passed the preliminary test.

The accumulator system of a flow battery generally contains two reservoirs containing two different electrolytes. The connection between them is the power generation zone, where the two electrolytes are ion-exchanged across a thin film to store and release electrical energy. The larger the reservoir, the more energy stored.

EWE, in cooperation with the University of Jena in Germany, plans to use underground salt caverns as storage tanks in the municipality of Yemugum, a small town in the northwestern part of Germany. These salt caverns are mined holes left after salt mining. They are bulky and well-sealed and can be used as hermetic repositories. EWE currently operates natural gas storage at eight underground salt caverns in Jemum. According to reports, the storage capacity of two medium-sized salt caverns is enough to power a big city like Berlin for an hour, which means it will be the largest battery in the world.

But the project also faces a number of technical issues. For example, the common liquid electrolyte battery is dissolved in sulfuric acid from vanadium, this solution is more polluting the environment. EWE company recently held a press conference in Berlin, said Jena University researchers successfully developed a polymer that will dissolve in salt water as an electrolyte to meet environmental requirements, the current polymer has passed The initial test.

The project leader, Ralf Rickenberg, said the project is a big step toward making the world's largest battery, but more tests are still needed and the saltwater battery system is expected to be put into operation by the end of 2023 run.

Germany is currently implementing its energy transformation strategy with a plan to generate 80% of renewable energy by 2050, with the ultimate goal of replacing traditional sources of energy with renewable energy. However, one of the problems with renewable energy sources such as wind energy and solar energy is that the amount of electricity generated in different weather conditions is not stable, and thus a huge battery can play a regulatory role.


Attenuated Vaccines (Live)

Influenza Vaccine, Live, Nasal, Freeze-dried is a cooperative project with the WHO, which has been included in Global Action Plan for Influenza Vaccines (GAP)[1]. Hundreds of millions of doses have been used in the world, and Changchun BCHT Biotechnology Co. has the exclusive right of production and

operation in China.

Intranasal spray administration, no injection and no pain

The vaccine is inoculated by nasal spray, equipped with nasal spray device, and only needs to spray once a year in two nostrils to prevent influenza.

Mucosal immunity + Cellular immunity + Humoral immunity

After influenza virus attacks human body, it widely exists in nasal cavity, respiratory tract and other mucosal parts, as well as in body fluids and cells.

Vaccination of Influenza Vaccine, Live, Nasal, Freeze-dried can quickly stimulate the triple immune response of human body, and carry out defense

against viruses in different parts:

·Intranasal administration can produce mucosal immunity (IgA antibody), which forms the first immune defense line in the nasal cavity.

·Produce humoral immunity (IgG antibody) to remove influenza virus from body fluids.

·Produce cellular immunity (T cells) to remove influenza virus from cells

3+N More extensive protection

The production strains are recommended and supplied by the WHO every year.

The vaccine can not only effectively resist the vaccine strain, but also produce cross immunity to other subtypes of influenza virus.

Produced with SPF embryonated eggs

SPF

The chick embryos for vaccine production comes from SPF (specific pathogen free) chicken flocks, so the risk of exogenous pathogenic microorganism

pollution is excluded.

Free of inactivator, split agent and preservative

High protection and fast antibody production

This is the first influenza vaccine in China that has been evaluated by the protection effect of etiology in clinical stage. The protective effect of phase III

clinical trial is consistent with the literature.

First, the immune barrier was formed in the nasal mucosa after LAIV vaccination. It has been reported that the antibody of nasal mucosa can be

produced in 3 days, which greatly shortens the time for vaccine to produce

protective effect.

Influenza Vaccine Freeze-Dried,Liquid Influenza Vaccine,Influenza Vaccine Live,Cinfluenza Vaccine Live

Changchun BCHT Biotechnology Co. , https://www.ccbcht.net