10 fwa pi wo dansite enèji pase batri ityòm? Porsche devlope batri anod Silisyòm epi li planifye pou pwodwi li an mas-nan 5 ane
Spain's "Public" daily website recently reported that battery production is an important source of carbon emissions in the manufacturing process of electric vehicles, accounting for 25 percent to 40 percent of total emissions. More and more manufacturers are working to reduce emissions in this area, but Porsche wants to go further. The company is developing a battery with better performance and a smaller carbon footprint. Is this a perfect battery?
Porsche pral envesti anviwon 1 milya ero pandan 10 ane kap vini yo nan divès mezi dekarbonizasyon, tankou diminye emisyon gaz kabonik nan plant asanblaj li yo, rapò a te di. Pwodiksyon Porsche Taycan nan Zuffenhausen (nan Stuttgart, Almay) se kabòn net depi nan kòmansman an, men bati yon machin se pi plis pase rasanble tout pati yo sou liy pwodiksyon an.
Batri yo se youn nan sous enpòtan yo nan emisyon nan pwodiksyon an nan machin elektrik. Nan lyen sa a, plizyè etap pwodiksyon konvèti matyè premyè tankou nikèl ak cobalt nan pwodwi rafine ki ka itilize nan pil konsome yon gwo kantite enèji.
In a recent press conference, Benjamin Pasenberg, head of high-voltage systems at Porsche, said: "Having green energy is very important, especially in battery production, where it takes a lot of energy to heat things." However, using only Green (or low-emissions) energy sources to make batteries are not enough for Porsche (or other manufacturers) to meet their emissions targets. There is also a need to reimagine the battery itself to reduce the pollution that arises from battery manufacturing practices.
Pou sa ka fèt, Porsche ap travay sou yon nouvo batri. Yo di batri a pi pwisan, chaje pi vit, epi li gen yon anprint kabòn ki pi piti pase pil aktyèl yo. Teknoloji a se sèvi ak plis Silisyòm nan anod batri a, olye ke grafit la souvan itilize jodi a.
According to Otmar Beecher, head of electric vehicles at Porsche, silicon anodes are 10 times more energy dense. Porsche expects 20 to 25 percent more watt-hours per liter of volume than today's conventional lithium-ion batteries. That is to say, under a certain energy capacity, the battery volume is smaller. The improved energy efficiency of batteries, in turn, means fewer batteries are needed to power the vehicle, which reduces overall weight (and also reduces the space required for the batteries).
Mwens pwa machin vle di tou pi ba konsomasyon batri, men ki kote enpak pozitif sou anviwònman an? Premyèman, konsepsyon nouvo selil sa a diminye kondisyon materyèl pou estrikti selil aliminyòm (lojman) konpare ak desen selil silendrik. Pwodiksyon aliminyòm se youn nan sous emisyon kabòn enpòtan pou otomobil yo. Dapre yon etid resan Volvo, aliminyòm konte pou 30 pousan nan emisyon yo ki rive nan pwodiksyon an nan materyèl machin modèn, menm plis pase batri nan tèt li. Se poutèt sa, diminye itilizasyon aliminyòm tou diminye yon gwo pati nan emisyon yo. Pandan ke pa gen okenn spesifik yo te lage, Porsche te di batri a ta tou chaje pi vit.
Nan lòt men an, kontni an Cobalt nan pil sa yo ta redwi. Kounye a li konnen ke cobalt difisil pou jwenn, trè chè, e li gen yon gwo enpak sou anviwònman an. Cobalt kounye a fè moute 20 pousan nan materyèl la katod batri Taycan, ak Porsche espere nouvo teknoloji li yo pral diminye pati nan cobalt a jis 5 a 10 pousan.
To further reduce emissions, Porsche will focus on the supply chain. The German company will source cobalt, nickel and other raw materials as much as possible from Europe, so that it will be closer to where the new batteries will be produced, near Porsche's research and development center in Weissach. According to the relevant person in charge of Porsche, purchasing cathode materials from Schwarzheide, Germany instead of my country can reduce carbon dioxide emissions by 25 percent .
In addition, Porsche is pushing its suppliers to make batteries and other components entirely from renewable energy. The German carmaker said it would no longer consider long-term contracts with suppliers who were unwilling to use certified "green" energy. Porsche says the supply chain accounts for about 20 percent of the automaker's total greenhouse gas emissions. That will rise to around 40 percent by 2030 as production shifts to electric vehicles.
The big question is, when will we see this "ideal" Porsche battery in a road car? Like many other technologies in the automotive sector, it will be used first in racing cars, where high performance and fast charging capabilities are paramount. Otmar Beecher said: "Typically, we are 2 to 3 years away from the transition to production cars. So we will see it in production cars after 2025." Porsche expects to commercialize the high-performance battery within five years.
An tèm de pwodiksyon, objektif la se reyalize yon pwodiksyon anyèl minimòm de 100 MWh, ase pou kouran anviwon 1,000 machin. Sa fè nou kwè ke okòmansman li pral destine sèlman pou kèk modèl ki pa-pwodiksyon, pètèt kèk supercar trè wo-pèfòmans.
Of course, it's not a perfect battery. The perfect battery charges in seconds, doesn't overheat or lose capacity over time, and is lightweight and inexpensive to produce. We'll probably never see a battery with all these features in one, but in the short to medium term, Porsche's battery is getting pretty close to -- at least in theory -- the ideal battery. (compiled / Li Zijian)
