Save the environment through recharging
Choose rechargeable batteries and reduce the burden on the environment. Anton Helgstrand, from the Department of Environmental Technology and Management (IEI), has studied the life of batteries from the cradle to the grave.
In Sweden alone, 55 million alkali single-use AA batteries were purchased during 2009. If we’d chosen rechargeable batteries instead and charged them a hundred times, we’d have reduced emissions of carbon dioxide equivalents by 6700 tonnes. It’s a sizeable amount, corresponding to 925 trips around the world in a car.
After ten charges, rechargeable batteries cause 62% less emissions than single-use batteries with the same energy capacity.
Even as few as four recharges yields a benefit to the climate, compared with using four alkali single-use batteries with the same amount of energy.
These facts come from a life-cycle analysis conducted by Anton Helgstrand, life-cycle analysis expert at the Department of Environmental Technology and Management. The analysis was commissioned by battery manufacturer GPBM Nordic AB.
Helgstrand also studied and compared where the two types of batteries come from. Those being normal alkali single-use batteries and rechargeable nickel/metal hydride AA batteries (the slightly larger variant of small dry cell batteries).
Is there any reason to believe that similar types of batteries from another manufacturer would yield another result?
“I really can’t say anything about that, but it is likely we’d get a similar result if we compare them under the same conditions,” Helgstrand explains.
In a life-cycle analysis, he takes the environmental burden of the entire life cycle of a product into account, from the extraction of raw materials through manufacture and transport to use, and finally waste management.
“Usage is the most difficult aspect to estimate as there aren’t any really good studies to refer to. Nor have we compared the metals in the two types. In both cases we assumed that 30% of the material is recycled, 40% incinerated, and 30% dumped.”
Helgstrand also argues in the study that there should be some form of environmental labelling on rechargeable batteries.
“A clear label, like the Nordic eco-label, Svanen, would certainly increase the use of rechargeable batteries, thereby reducing the impact on the environment,” he says.
LiU researchers have joined international calls for a boycott of scientific conferences in the US.
Psychology students took on role of treaters in a study of perfectionism and internet-delivered cognitive behavioural therapy.
Social value creation is on the agendas of more and more companies and organisations. Erik Jannesson, senior lecturer in management control, has just published a book on the subject.
Rolf Holmqvist is one of 17 researchers who are critical to guidelines for the treatment of depression and anxiety.
Malin Thor Tureby was keynote speaker at an international conference on oral history.
Cats that meow with a dialect have caused a sensation in the world media. Robert Eklund, a linguist who works with cats at the Department of Culture and Communication, has lost count of the number of times the work has been reported in the media.
On 6 December, a Farewell Mingle was held for departing exchange students who have studied at Linköping University.
"We have a global and critical perspective that attracts today's students," says Stefan Jonsson, professor at REMESO, about the Faculty of Arts and Science’s first international master’s programme at REMESO in Norrköping - Ethnic and Migration Studies.
Achieving perfect health has become a religion in the western world, according to a newly published study. Barbro Wijma, professor emerita and physician with many years of experience meeting patients, views this development with dismay.
Skin colour matters, also in Sweden. But many people don’t accept that racism is a problem here – only in other countries. So claims doctoral student Victoria Kawesa, who writes about black feminism and whiteness in Sweden.
Johanna Sköld from Child Studies at Linköping University co-organised an international workshop where researchers compared various models of compensation for institutional neglect and abuse.
Anna Lindström and Monika Lopez of the Department of Culture and Communication applied earlier this year for funding for an initiative in an issue relating to refugees. The funding was granted, and the “Tomorrow’s Nobel laureates” project was born.
Suad Ali, expert on Sweden’s refugee quota, works tirelessly for refugees worldwide. For her dedication she has been chosen as one of Linköping University’s two Alumni of the Year.
Thomas Lunner’s research has given improved hearing to millions of people with impaired hearing. He has been chosen as one of this year’s Alumni of the Year.
Last updated: Mon Feb 13 11:06:30 CET 2017