Calcium-based batteries promise to reach a high energy density at low manufacturing costs. This lab-scale technology has the potential for replacing lithium-ion technology in future energy storage systems. Using the electrolytes available, however, it has been impossible so far to charge calcium batteries at room temperature.
In the Energy & Environmental Science journal, researchers of Karlsruhe Institute of Technology (KIT) now present a promising electrolyte class, with which this will be possible. (DOI: 10.1039/c9ee01699f)
Efficient, large, and low-cost energy storage systems will facilitate nationwide transition to zero-emission mobility and power supply. Today’s predominant lithium-ion technology, however, cannot fulfill this task on a global scale, says Professor Maximilian Fichtner of KIT, Director of the research platform CELEST (Center for Electrochemical Energy Storage Ulm & Karlsruhe). Here, calcium batteries and other storage technologies are studied. “In the medium term, lithium-ion batteries will reach their limits in terms of performance and some of the resources used for their manufacture. This will prevent their future use wherever that would be reasonable for the energy transition. Availability of resources needed for manufacture, such as cobalt, nickel, and lithium, is limited.” At the Helmholtz Institute Ulm (HIU) established by KIT in cooperation with Ulm University, Fichtner and his team focus on alternative battery technologies instead. These technologies are based on more abundant resources. Calcium is a promising candidate, because it can release and accept two electrons per atom contrary to lithium and because it supplies a voltage similar to that of lithium: “Calcium is the fifth most abundant element in the Earth’s crust. It is distributed homogeneously on Earth and it is safe, non-toxic, and inexpensive.”
Search for a Suitable Electrolyte
Still, there has been a big obstacle in calcium battery development so far: In contrast to the established lithium-ion technology or more recent sodium or magnesium technologies, practicable electrolytes to produce rechargeable calcium batteries have been lacking so far. “For a few years now, experimental electrolytes and, hence, prototypes of the calcium battery have been available,” say Dr. Zhenyou Li, first author of the study, and Dr. Zhirong Zhao-Karger, who heads the project. Both are working in the POLiS (Post Lithium Storage) Cluster of Excellence of KIT that is embedded in CELEST. “But these electrolytes enable charging at temperatures beyond 75 degrees Celsius only and additionally they are susceptible to undesired side reactions.”
The researchers have now succeeded in synthesizing a class of new electrolytes based on special organic calcium salts. These electrolytes enable charging at room temperature. Using the new electrolyte calcium tetrakis[hexafluoroisopropyloxy]borate, the researchers demonstrated feasibility of calcium batteries of high energy density, storage capacity, and quick-charging capability. Their results are reported in the journal Energy & Environmental Science.
Calcium Batteries as Sustainable Energy Storage Systems
The new class of electrolytes is an important basis for transferring calcium batteries from the laboratory to application. In electric vehicles, mobile electronic devices, and stationary storage systems, they might replace the presently predominating lithium-ion battery one day. But this may take a while: “The new electrolytes are a first important step,” Fichtner emphasizes. “There still is a far way to go to the mature calcium battery.”
The Latest on: Calcium batteries
via Google News
The Latest on: Calcium batteries
- Global Calcium Chloride Market to 2029 - COVID-19 Impact Estimation - ResearchAndMarkets.comon June 16, 2020 at 8:05 am
DUBLIN--(Business Wire)--The "Calcium Chloride (CaCl2): 2020 World Market Outlook and Forecast up to 2029 (with COVID-19 Impact Estimation)" report has been added to ResearchAndMarkets.com's offering.
- Ringing In The New Year With An Arduino And Calcium Carbideon June 11, 2020 at 5:00 pm
Basically, a small chunk of calcium carbide and a little bit of water is placed in a metal milk churn. The carbide decomposes into acetylene and a flame is held up to a small hole in the milk churn.
- Calcium Aluminate Cement (CAC) Market 2020 Analysis by Global Manufacturers – Almatis, Calucem, Bisley, Cimsaon June 11, 2020 at 5:00 pm
The Calcium Aluminate Cement (CAC) Market report is a compilation of first-hand information, qualitative and quantitative assessment by industry analysts, inputs from industry experts and industry ...
- Townsville lithium-ion battery plant developed by iM3on June 10, 2020 at 10:09 am
Magnis has provided an update on progress to the iM3TSV 18 GWh lithium-ion battery cell manufacturing plant, planned for Townsville.
- Carbon fibers allow bone cement to heal itselfon June 10, 2020 at 10:03 am
A substance known as calcium phosphate cement is already commonly used to repair broken bones, both holding them together and encouraging the growth of new bone tissue. Now, scientists have added ...
- This Colombian Scientist Is Searching For A Battery That Won’t Explodeon June 10, 2020 at 7:02 am
Lithium batteries power phones our modern lifestyle, but they have also been known to catch on fire. Colombian scientist Laura Loaiza is working on ways to increase the safety of batteries by finding ...
- Scientists Use a Mutated Virus to Build a Better Batteryon June 9, 2020 at 6:30 am
which in turn increases the area where electrochemical activity takes place when batteries are charged or discharged. In a process similar to how an abalone pulls calcium from seawater to grow its ...
- How can I boost my calcium levels?on June 6, 2020 at 5:00 pm
Now I am no longer taking it, I am extremely concerned about my bones. I have a major dislike of dairy products since a small child, but need to eat lots of calcium. Have you got any suggestions?
- Team works to characterize ocean acidification throughout coastal North Americaon June 1, 2020 at 7:37 am
In particular, the organisms that use calcium to build their carbonate skeletons—such as corals or mollusks—will have a harder time under acidified conditions. To help determine the causes of ...
- No More ‘Kneecap to Kneecap’ Talks: Coronavirus Hinders Military Recruitingon May 20, 2020 at 8:55 am
Austin West, an Army recruiter who has been conducting video calls with potential recruits from his home in Calcium ... Armed Services Vocational Aptitude Battery. “These steps are likely ...
via Bing News