Koloi e phahameng ea nako e telele e sa tsamaisoang ke letsatsi (EAV-3) e entsoeng ke Korea Aerospace Research Institute, e laetseng libeteri tsa LG Chem tsa lithium-sulfur, e atlehile ho etsa tlhahlobo ea sefofane sa stratospheric.

The stratosphere ke sepakapaka pakeng tsa troposphere (ka holim’a 12 km) le lera bohareng (50 ho 80 km), le bolelele ba 12 ho 50 km.

EAV-3 ke sefofane se senyane se ka fofang nako e telele ka matla a letsatsi le libeteri sebakeng sa stratosphere ka bolelele ba 12km kapa ho feta. Sebelisa liphanele tsa letsatsi mapheong ho tjhaja, fofa ka lisele tsa letsatsi le matla a betri mots’ehare, ‘me u fofe ka libeteri tse lefisitsoeng motšehare bosiu. EAV-3 e na le mapheo a bolelele ba 20m le fuselage ea 9m.

Tekong ena ea sefofane, EAV-3 e behile rekoto e holimo sefofaneng sa stratospheric sa li-drones tsa lapeng tsa Korea tse bophahamo ba sefofane ba 22km. Nakong ea sefofane sa lihora tse 13, UAV e ile ea nka sefofane se tsitsitseng ho fihlela lihora tse 7 sebakeng sa stratosphere sebakeng sa bophahamo ba 12km ho isa ho 22km.

Libetri tsa lithium-sulfur, e le e ‘ngoe ea libeteri tsa moloko o mocha ho nkela libeteri tsa lithium sebaka, li sebelisa lisebelisoa tse bobebe tse kang sulfur-carbon composite cathode thepa le lisebelisoa tsa anode tsa lithium metal,’ me matla a bona a matla ka yuniti e le ‘ngoe e feta makhetlo a 1.5 ho feta a lithium e teng. dibetri. Molemo ke hore e bobebe ho feta betri ea lithium e teng ‘me e na le tlhōlisano e ntle ea theko hobane ha e sebelise litšepe tse sa tloaelehang.

LG Chem e boletse hore nakong e tlang e tla hlahisa lihlahisoa tse ngata tsa liteko tsa betri ea lithium-sulfur le ho etsa liteko tsa matsatsi a mangata a maeto a malelele. E boetse e rera ho hlahisa libeteri tsa lithium-sulfur ka bongata tse nang le matla a matla ho feta habeli libeteri tsa lithium tse teng kamora 2025.