Live Wednesday, 28 October 2026

BREAKING

Egyptian FM holds calls with Iranian counterpart , U.S. Envoy on regional developmentsZverev into French Open last-fourIsraeli fire kills four people in Gaza, medics sayEgypt, Singapore discuss expanding cooperation in tourism, antiquitiesAncelotti eases Neymar W. Cup fearsArab, Islamic states condemn Israeli actions at Al-AqsaSyria Hopes for Terrorism Delisting to Spur Economic RecoveryBenfica linked with Fulham’s SilvaVan der Breggen takes Giro leadKremlin: Saudi Arabia Named Guest of Honor at St. Petersburg Economic ForumTrump administration proposes 25% tariff to punish Brazil over trade practicesرياضة محلية‘Really cool to share this journey with her’: Michelle Wie West playing for her family at U.S. Women’s OpenArchaeological Replicas Showcase Saudi Arabia’s Rich History at Kuala Lumpur Int’l Book FairRenewable Energy Helps Red Sea Global Avoid 118,000 Tons of Carbon EmissionsLetter: Carol Rumens obituaryEngland v India: third and deciding women’s T20 cricket international – liveHealthVolunteers serve comfort food in a worrying Ebola outbreak – Sault Michigan NewsEconomyTrump signs AI executive order asking companies to give government early access to modelsLocalSouth West Water fined nearly £2million after supplying homes with parasite-ridden water that left four people in hospital – and telling people it was safe to drinkScience & TechYour car is following you – how to reclaim your data privacy on the open roadEgyptian FM holds calls with Iranian counterpart , U.S. Envoy on regional developmentsZverev into French Open last-fourIsraeli fire kills four people in Gaza, medics sayEgypt, Singapore discuss expanding cooperation in tourism, antiquitiesAncelotti eases Neymar W. Cup fearsArab, Islamic states condemn Israeli actions at Al-AqsaSyria Hopes for Terrorism Delisting to Spur Economic RecoveryBenfica linked with Fulham’s SilvaVan der Breggen takes Giro leadKremlin: Saudi Arabia Named Guest of Honor at St. Petersburg Economic ForumTrump administration proposes 25% tariff to punish Brazil over trade practicesرياضة محلية‘Really cool to share this journey with her’: Michelle Wie West playing for her family at U.S. Women’s OpenArchaeological Replicas Showcase Saudi Arabia’s Rich History at Kuala Lumpur Int’l Book FairRenewable Energy Helps Red Sea Global Avoid 118,000 Tons of Carbon EmissionsLetter: Carol Rumens obituaryEngland v India: third and deciding women’s T20 cricket international – liveHealthVolunteers serve comfort food in a worrying Ebola outbreak – Sault Michigan NewsEconomyTrump signs AI executive order asking companies to give government early access to modelsLocalSouth West Water fined nearly £2million after supplying homes with parasite-ridden water that left four people in hospital – and telling people it was safe to drinkScience & TechYour car is following you – how to reclaim your data privacy on the open road

Prices

US dollar56.09EGPEuro62.50EGPBritish pound74.69EGPSaudi riyal14.96EGPUAE dirham15.27EGPKuwaiti dinar180.57EGPJordanian dinar79.12EGPQatari riyal15.41EGPTurkish lira1.13EGPChinese yuan8.40EGPGold 247,312.97EGP/gGold 216,398.85EGP/gGold 185,484.73EGP/gSilver97.34EGP/g

US dollar56.09EGPEuro62.50EGPBritish pound74.69EGPSaudi riyal14.96EGPUAE dirham15.27EGPKuwaiti dinar180.57EGPJordanian dinar79.12EGPQatari riyal15.41EGPTurkish lira1.13EGPChinese yuan8.40EGPGold 247,312.97EGP/gGold 216,398.85EGP/gGold 185,484.73EGP/gSilver97.34EGP/g

Science & Tech

15 ألف دورة شحن.. سر جديد يطيل عمر بطاريات الزنك والمنغنيز

By الجزيرة - اقتصاد · 3 days ago · 1 min read الجزيرة - اقتصاد ↗

15 ألف دورة شحن.. سر جديد يطيل عمر بطاريات الزنك والمنغنيز

ما يعرفه ريفو عن الخبر

نجح باحثون في تطوير تقنية تزيد عمر بطاريات الزنك وثاني أكسيد المنغنيز لتتجاوز 15 ألف دورة شحن.
اعتمد الحل على إدخال ذرات منفردة من الكوبالت لتغيير البيئة الإلكترونية والروابط الذرية داخل المادة.
ساعدت هذه الآلية في تحقيق سعة نوعية بلغت 658 مللي أمبير ساعة لكل غرام.
أكد الباحثون أن هذه النتائج المخبرية تتطلب تقييمات إضافية قبل إمكانية استخدامها تجارياً.

طوّر باحثون بطارية زنك ومنغنيز باستخدام ذرات منفردة من الكوبالت، محققين سعة تخزين بلغت 658 مللي أمبير ساعة لكل غرام وعمرا تجاوز 15 ألف دورة شحن وتفريغ.

المصدر: الجزيرة – اقتصاد

#الكوبالت #بطاريات الزنك #تطوير بطاريات الزنك

0 Views

أضف تعليقاً Cancel reply