Shin sanyi yana shafar batura masu ƙarfi?

yadda sanyi ke shafar batura masu ƙarfida abin da ake yi game da shi:

Me yasa sanyi kalubale ne

1. Ƙarƙashin ƙarfin ionic

   • M electrolytes (ceramics, sulfides, polymers) sun dogara da ions lithium hopping ta hanyar tsayayyen crystal ko tsarin polymer.

   • A low yanayin zafi, wannan hopping rage gudu, don haka dajuriya na ciki yana ƙaruwakuma isar da wutar lantarki ya ragu.

2. Matsalolin mu'amala

   • A cikin baturi mai ƙarfi, hulɗar da ke tsakanin ƙarfin lantarki da na'urorin lantarki na da mahimmanci.

   • Yanayin sanyi na iya rage kayan a farashi daban-daban, ƙirƙirarmicro-gapsa musaya → sa ion kwarara ya fi muni.

3. Cajin wahala

   • Kamar batir lithium-ion na ruwa, yin caji a ƙananan haɗarilithium plating(karfe lithium forming a kan anode).

   • A cikin ƙasa mai ƙarfi, wannan na iya zama ma fi lahani tunda dendrites (alura kamar lithium adibas) na iya fashe daskararrun electrolyte.

Idan aka kwatanta da lithium-ion na yau da kullun

• Lithium-ion ruwa electrolyte: Sanyi yana sa ruwa ya yi kauri (ƙananan aiki), rage kewayon da saurin caji.

• Lithium-ion mai ƙarfi-jihar: Mafi aminci a cikin sanyi (babu daskarewa / yoyo), ammahar yanzu ya rasa conductivitysaboda daskararru ba sa jigilar ion da kyau a cikin ƙananan yanayi.

Magani na yanzu a cikin bincike

1. Sulfide electrolytes

   • Wasu ƙwararrun masu amfani da sulfide suna kiyaye ingantacciyar ƙarfin aiki ko da ƙasa da 0 ° C.

   • Alkawari ga EVs a cikin yankunan sanyi.

2. Polymer - yumbu hybrids

   • Haɗa nau'ikan polymers masu sassauƙa tare da barbashi yumbu suna haɓaka kwararar ion a ƙaramin ɗan lokaci yayin kiyaye aminci.

3. Injiniyan sadarwa

   • Ana haɓaka yadudduka ko yadudduka don kiyaye hulɗar electrode-electrolyte a kwanciyar hankali yayin canjin yanayin zafi.

4. Tsarin zafin jiki na farko a cikin EVs

   • Kamar dai EVs na yau suna dumama batura masu ruwa kafin yin caji, EVs mai ƙarfi na gaba na iya amfani da su.thermal managementdon kiyaye sel a cikin kewayon su (15-35 ° C).

Taƙaice:
Lallai sanyi yana shafar batura masu ƙarfi, musamman saboda ƙarancin ion aiki da juriya. Har yanzu sun fi aminci fiye da lithium-ion ruwa a cikin waɗannan yanayi, ammaaiki (kewayi, ƙimar caji, fitarwar wuta) na iya raguwa sosai ƙasa da 0 ° C. Masu bincike suna aiki tuƙuru akan electrolytes da ƙira waɗanda ke dawwama a cikin sanyi, suna neman ingantaccen amfani a cikin EVs har ma a cikin yanayin hunturu.