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Scientists have used sugar to create a record-breaking battery capable of storing grid-scale energy for more than a year. The breakthrough could help speed up the transition to renewable energy sources, which require vast amounts of battery storage in order to avoid relying on fossil fuels to meet demand when solar or wind output is low. A team from the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) made the latest discovery while researching flow batteries, which use two liquid-filled chambers to produce an electrochemical reaction to store and release energy. Flow batteries have the potential to be scaled up to the size of football fields, capable of storing vast amounts of energy, however current methods for creating them rely on mined minerals that are difficult and costly to obtain. “This is a brand new approach to developing flow battery electrolyte,” said Wei Wang, a battery researcher who led the investigation into the new method. “We showed that you can use a totally different type of catalyst designed to accelerate energy conversion.” The researchers used a dissolved simple sugar called β-cyclodextrin, which is a derivative of starch, in order to boost their flow battery’s longevity and capacity. The system achieved 60 per cent more peak power than current methods, while also being capable of storing and releasing energy for more than a year continuously. The latest advance makes the next-generation battery design “a candidate for scale up”, according to the researchers. “We cannot always dig the Earth for new materials,” said Imre Gyuk, director of energy storage research at DOE’s Office of Electricity. “We need to develop a sustainable approach with chemicals that we can sythesize in large amounts – just like the pharmaceutical and the food industries.” A study detailing the research, titled ‘Proton-regulated alcohol oxidation for high-capacity ketone-based flow battery anolyte’, was published in the scientific journal Joule. Read More How tech could turn our homes into renewable energy power stations ‘Miracle material’ smashes solar panel efficiency threshold Mineral discovery could meet global battery and solar panel demand for next 100 years Why the Battle of the Boyne has made its way into your iPhone Twitter gets strange endorsement from Taliban over rival Threads

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Scotland coach Gregor Townsend has made two changes to his forwards and two among the backs in his side for the Rugby World Cup match against Tonga on Sunday in Nice

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(Reuters) -Lululemon Athletica Inc raised its annual sales and profit forecasts on Thursday, betting on strong demand for its activewear

Chelsea have completed the signing of goalkeeper Robert Sanchez from Brighton on a seven-year deal. The Blues agreed a £25million deal with Brighton to sign the 25-year-old Spaniard on Thursday and have now finalised the move. The transfer involves an up-front £25m payment, with an additional sell-on clause included, the PA news agency understands. Chelsea’s co-sporting directors Paul Winstanley and Laurence Stewart said on the club website: “We’re very pleased to welcome Robert to Chelsea and he adds further quality to our goalkeeping unit. “Robert has repeatedly proved himself in the Premier League and been capped by his country. We are excited to watch him work with (head coach) Mauricio (Pochettino) and his coaching team during the season ahead.” Sanchez, who made 23 Premier League appearances for Brighton last season, will challenge Kepa Arrizabalaga for a starting place at Stamford Bridge. Chelsea have now made seven summer signings under Pochettino, who is rebuilding the squad following his appointment in May as a permanent replacement for Graham Potter. France defender Axel Disasi and 19-year-old midfielder Lesley Ugochukwu arrived at Stamford Bridge earlier this week from Monaco and Rennes respectively. Wingers Diego Moreira (Benfica B) and Angelo (Santos) plus forwards Nicolas Jackson (Villarreal) and Christopher Nkunku (RB Leipzig) have also been signed this summer. Sanchez, who has made two senior appearances for Spain and was included in both their Euro 2020 and World Cup 2022 squads, made 91 appearances for Brighton in all competitions after progressing through their academy. He had loan spells at Forest Green and Rochdale before becoming a regular starter for Brighton during the 2020-21 season. Read More Charity boss speaks out over ‘traumatic’ encounter with royal aide Ukraine war’s heaviest fight rages in east - follow live Tottenham complete Ash Phillips signing from Blackburn On This Day in 2019: Harry Maguire joins Manchester United Castleford coach Andy Last sacked after heavy home defeat to Huddersfield