Multi-chemistry battery pack using second life batteries for off-grid systems in developing countriesA team led by Oxford’s Professor David Howey has been working to develop battery technology for off-grid solar energy systems. Using previously discarded lithium-ion batteries, they hope to provide round-the-clock access to affordable power for rural communities in sub-Saharan Africa. An important part of the innovation is the modularity of the battery units. This allows individual cells to be replaced when they die, resulting in a robust and maintainable battery pack – ideal for the harsh conditions of sub-Saharan countries. This modularity also means that the user can easily add additional battery units as their energy demand increases.
The work, partially supported by EPSRC and HEFCE funding, is being realised through a strong partnership with INTASAVE – a globally operating not-for-profit organisation who are implementing the provision of solar hubs in selected villages in Kenya.