Batri ion calsiwm-newydd
Recently, Tang Yongbing, a researcher at the Functional Thin Film Materials Research Center of the Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, and his team, together with Tsinghua-Berkeley Shenzhen Institute and Cheng Huiming, a researcher at the Shenyang National Research Center for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, developed a high-performance calcium ion Battery. By innovating the battery structure, they made the calcium ion battery have a new electrochemical reaction mechanism, and realized the stable charge-discharge reaction at room temperature. The relevant research results were published online in "Nature-Chemistry".
Ymhlith elfennau metel daear alcalïaidd, mae gan galsiwm fanteision polareiddio isel, potensial electrod safonol yn agos at lithiwm, ïon plws 2 falens (mae nifer y taliadau ddwywaith yn fwy na ïon lithiwm), digonedd o gronfeydd wrth gefn, a chost isel. Felly, mae gan fatris ïon calsiwm y potensial i ddod yn fatris storio ynni effeithlon a chost isel.
Yn 2016, datblygodd ymchwilwyr fath newydd o batri hylif ïon calsiwm. Er nad yw ei foltedd gweithio yn uchel (<1v), it="" shows="" good="" cycle="" stability="" at="" high="" temperature="" (550~700℃).="" although="" the="" researchers="" did="" not="" find="" a="" reversible="" redox="" reaction="" of="" calcium="" ions="" at="" room="" temperature,="" they="" found="" that="" calcium="" ions="" in="" carbonate="" electrolytes="" can="" undergo="" reversible="" deposition="" reactions="" on="" the="" surface="" of="" calcium="" negative="" electrodes="" at="" 75-100="" °c,="" and="" can="" cycle="" at="" 100="" °c.="" 30+="" weeks.="" however,="" in="" order="" for="" calcium="" ion="" batteries="" to="" have="" practical="" value,="" the="" operating="" temperature="" must="" be="" lowered="" to="" room="" temperature.="" it="" is="" necessary="" to="" find="" positive="" and="" negative="" electrode="" materials="" that="" can="" realize="" reversible="" calcium="" ion="" insertion/extraction="" and="" improve="" their="" electrochemical="" performance,="" including="" room="" temperature="" cycle="" characteristics,="" rate="" characteristics="" and="" operating="" voltage="" (currently=""><>
Cynigiodd yr ymchwilwyr fath newydd o fatri ïon calsiwm, sy'n defnyddio ffoil tun fel yr electrod negyddol i gael adwaith aloi cildroadwy ag ïonau calsiwm, ac yn mabwysiadu dyluniad integredig deunydd gweithredol a chasglwr cyfredol; ac mae'n defnyddio graffit fel yr electrod positif i wireddu rhyng-raddiad/deintercalation cildroadwy anionau. Adwaith; cymerwch y toddydd sy'n seiliedig ar garbonad wedi'i hydoddi mewn calsiwm hecsaflworoffosffad ac sydd â gwrthiant foltedd uchel 5V fel yr electrolyt. Mae gan y batri ïon calsiwm berfformiad electrocemegol rhagorol
