Tech Bundle

Diagnostics, Refurbishment and Recycling

Scalable, Cost-effective Calorimeter for Thermal Monitoring of Batteries
Battery cells must be tested for performance and operational reliability from the design phase to the production process, to safeguard its safety, reliability and cost. As batteries are prone to temperature-related issues, like overheating and overcharging, there can be extreme spikes in temperature known as ‘thermal runaway’. In order to evaluate the thermal performance of the battery, calorimetric testing can produce data that indicates defects at an early stage and thus help to predict a ‘thermal runaway’ at a later stage.  A German research institute has developed a modular, scalable calorimeter to measure the thermal data of batteries of diverse cell sizes. The scalable system is suitable for applications in thermal monitoring from new module designs to new battery materials and quality assurance. The modules are currently in use at the research institute and this calorimeter has German utility model protection. The research institute is searching for partners for the joint further development in research cooperation agreements or for partners interested in a direct license.
Process for Rejuvenation of Spent Lithium-ion Battery Cathodes
Lithium-ion batteries (LIBs) have been the preferred portable energy source in recent decades. The tremendous growth in the use of LIBs has resulted in a great number of spent LIBs. Disposal of these spent LIBs will cause serious environmental problems due to hazardous components such as heavy metals and electrolytes. Materials contained in the spent LIBs are valuable resources and could be recycled by proper technologies. Current methods are not suitable for LIB recycling due to slow process, low purity of the products (low profits) and the use of non-environmental friendly leaching reagents. The proposed LIB recycling technology is based on a co-precipitation process and control system which can process various types of spent LIBs including lithium cobalt oxide (LCO), lithium manganese oxide (LMO), lithium nickel manganese cobalt oxide (NMC) and lithium nickel cobalt aluminium oxide (NCA). The co-precipitation method allows the recovery of cathode metal salts in their original form, without separation of the metal elements. The obtained metal salts could then serve as the precursor for synthesis of new cathode material.  In summary the process recovers the following products at more than 99% purity levels: (a) graphite and (b) cathode metal salts e.g. LiCo1/3Ni1/3Mn1/3O2, NiCO3, MnCO3, CoC2O4, and Li2CO3. The technology provider is seeking a partner who is willing to fund the prototype development and become an early adopter of the technology. Preferably, the partner should have access to spent LIB sources to support the trial.