The battery technology has made great progress in recent years. And the Chinese company Geely is now showing an innovation: the “Short Blade Battery”, an improved one Lithium iron phosphate battery (LFP battery). This not only impresses with a high energy density of 192 Wh/kg, but also by a strong fast charging capability and durability.
Geely's 1 million LFP battery
Geely, parent company of Volvo, highlights in a press release the superior durability, charging speed and ultimate safety of the new battery. The “Short Blade Battery” uses a narrow, long form factorThe individual cells are combined directly into the battery pack without first being combined into modules. This increases the energy density considerably.
According to Geely’s tests, the “Short Blade Battery” up to 3.500 charging cycles. For comparison: Current lithium-ion batteries usually reach about 1.000 charging cycles before their capacity decreases significantly. 3.500 cycles correspond to a Total range of 1 million kilometers with minimal capacity losses.
with Carbon nanotubes
The future battery also solves the problem of high internal resistance that occurs with current “long blade” batteries. Geely is relying on thin carbon nanotubes, which act as a "highway" for ion transfer. In addition, special additives improve the film permeability, allowing the lithium ions to migrate more quickly between the electrodes. This leads to a significant reduction in charging time: The Average charging time from 10 to 80 percent is only 17 minutes and 4 seconds, compared to 26 minutes for conventional Blade batteries.
And the battery also shows its strength in extremely cold environments. At temperatures of -30 °C holds her 90,54 percent of its capacity, while longer blade batteries on 78,96 percent This eliminates one of the biggest disadvantages of LFP technology, namely the low capacity at low temperatures.
Within the Safety Geely sets standards.
The company has the “Self Fusing” technology on the electrode surfaces to prevent short circuits in the event of an accident. An aluminum foil layer fuses with the battery membrane during extreme impacts, forming an insulating layer that prevents short circuits.
Battery has passed rigorous testing.
The Nail penetration tests it was pierced with eight 5 mm steel needles without sustaining any damage. Even a shot with a 5,8 mm infantry rifle bullet did not cause thermal runaway. In addition, Geely subjected the battery to a “Six Extremes” test, which includes seawater immersion, extreme cold, scraping the bottom of the battery, rolling over with a 26-ton weight, side impact and exposure to fire. The “Short Blade Battery” passed all tests.
When and in which vehicles the new battery will be used for the first time remains to be seen. The industry portal CnEVPost However, it is suspected that the battery will make its debut in Electric SUV Galaxy E5 will celebrate.
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Thomas Wachsmuth
Thomas Wachsmuth is the founder and editor-in-chief of tuningblog.eu - he has been an integral part of it since 2013. His passion for cars is so intense that he invests every available cent in them. While he dreams of a BMW E31 850CSI and a Hennessey 6x6 Ford F-150, he currently drives a rather unremarkable BMW 540i (G31/LCI). His collection of books, booklets and brochures on the subject of car tuning has now reached such proportions that he himself has become a walking reference work for the tuning scene.
