Interphase formation in hybrid next-generation battery systems
Batteries with high energy density and satisfactory cycling stability are needed for reaching the targeted climate goals. Besides all-solid-state batteries, metal–oxygen and metal–sulfur batteries with liquid electrolytes (LEs) are a promising technology, possibly enabling a sustainable future. To increase the attainable cycling stability, the applied anodes, cathodes, and electrolytes have to be perfectly matched to […]
Innovations in scalable electrode processing for thiophosphate-based all-solid-state-batteries
All-solid-state lithium-ion batteries are promising candidates to overcome safety and energy limitations of common lithium-ion batteries. Although excellent results have been reported for sulfide based electrolytes on a small scale, it is complicated to reproduce the same performance in a larger cell. In this lecture, scalable concepts for high energy anodes are presented. We combined […]
Electrodeposited lithium on copper foil as electrodes in lithium metal batteries
One of the main challenges of today is the storage of electrical energy. Besides the well-established system of Li-ion batteries, metallic lithium electrodes are promising due to the high specific capacity of lithium (3860 mAh/g) and its very low negative electrochemical potential (-3.040 V vs. SHE). [1] However, lithium tend to form dendrites, which causes […]
A new approach for high power 48 V energy storage
Ultracapacitors are high power energy storage devices and can store and provide large power peaks. This is possible due to the physical storage of energy within the electrochemical double layer, an energy storage mechanism different from the chemical storage of energy within (Lithium-ion) batteries. While Ultracapacitors can provide high specific power, they generally lack the […]
Gas analysis of ether-based electrolytes in lithium-oxygen cells
Low-cost cell chemistries like metal-oxygen batteries are an essential component of future energy storage systems. Due to its very high theoretical energy density the system lithium-oxygen (Li-O2) is an interesting candidate. Gas analytical studies of Li-O2 cells with ether-based electrolytes are presented. The electrolytes used consist of 1M LiTFSI in DEGDME respectively TEGDME. The focus […]
Gas analysis of ether-based electrolytes in lithium-oxygen cells
Low-cost cell chemistries like metal-oxygen batteries are an essential component of future energy storage systems. Due to its very high theoretical energy density the system lithium-oxygen (Li-O2) is an interesting candidate. Gas analytical studies of Li-O2 cells with ether-based electrolytes are presented. The electrolytes used consist of 1M LiTFSI in DEGDME respectively TEGDME. The focus […]
Electrochemical Alkali-Ion Exchange: A powerful Tool to investigate novel Active Materials for Secondary Batteries
The challenge for a sustainable energy supply is a suitable storage technology. Currently, the lithium-ion battery has the largest application as energy storage device. Due to increasing number of applications and subsequent scarcity of Li resources, the interest of research and industry in alternative storage systems is growing. Na-ion batteries (SIB) could be an alternative […]
Designing surface structured substrates for use as negative electrodes in zero excess lithium metal batteries
In recent years, the ever-increasing demand for high energy density batteries has led to a renewed interest in lithium metal battery (LMB) technologies as an alternative to state of the art lithium ion batteries (LIBs). However, the significant challenges that occur when lithium metal is used as an anode material in such batteries need to […]
Enhanced Performance of All-Solid-State Na Ion Batteries
All-solid-state Na ion batteries (Na-ASSBs) with an oxide solid electrolyte have been successfully developed using glass ceramic as the cathode active material. Melt flow during the crystallization of the precursor glass enables the cathode to be integrated with a solid electrolyte. Such an integrated cathode/solid electrolyte demonstrates remarkable battery performance. All-solid-state batteries with oxide solid […]
Transfer of the conversion process of lead-acid batteries to lithium-sulfur batteries by verification by electrochemical impedance spectroscopy
To reduce the carbon dioxide (CO2) emissions, the powertrain of the vehicle will be electrified. Furthermore, the electrification of utility vehicles, like long-distance vehicles, will play in future a significant role in achieving the world’s CO2 targets. In this context, the battery plays a key role in the electrification of the powertrain. Lithium-ion batteries are […]