Nytt kalsium-ionbatteri
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".
Blant jordalkalimetallelementer har kalsium fordelene med lav polarisering, standard elektrodepotensial nær litium, ion med pluss 2 valens (antall ladninger er dobbelt så mye som litiumion), rikelige reserver og lave kostnader. Derfor har kalsium-ionebatterier potensial til å bli effektive og rimelige-energilagringsbatterier.
I 2016 utviklet forskere en ny type flytende kalsiumionbatteri. Selv om arbeidsspenningen ikke er høy (<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=""><>
Forskerne foreslo en ny type kalsiumionbatteri, som bruker tinnfolie som negativ elektrode for å gjennomgå en reversibel legeringsreaksjon med kalsiumioner, og vedtar den integrerte designen av aktivt materiale og strømsamler; og bruker grafitt som positiv elektrode for å realisere reversibel interkalering/deinterkalering av anioner. Reaksjon; ta det karbonatbaserte-løsningsmidlet oppløst i kalsiumheksafluorfosfat og som har 5V høyspenningsmotstand som elektrolytt. Kalsiumionbatteriet har utmerket elektrokjemisk ytelse
