【 在 vta 的大作中提到: 】
: 这有一篇研究日历寿命的论文
:
https://www.mdpi.com/2076-3417/8/10/1825:
: ...................
The impact of ageing when using various State of Charge (SOC) levels for an electrified
vehicle is investigated in this article. An extensive test series is conducted on Li-ion cells, based on
graphite and NMC/LMO electrode materials. Lifetime cycling tests are conducted during a period
of three years in various 10% SOC intervals, during which the degradation as function of number
of cycles is established. An empirical battery model is designed from the degradation trajectories
of the test result. An electric vehicle model is used to derive the load profiles for the ageing model.
The result showed that, when only considering ageing from different types of driving in small Depth
of Discharges (DODs), using a reduced charge level of 50% SOC increased the lifetime expectancy of
the vehicle battery by 44–130%. When accounting for the calendar ageing as well, this proved to be a
large part of the total ageing. By keeping the battery at 15% SOC during parking and limiting the
time at high SOC, the contribution from the calendar ageing could be substantially reduced.
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说白了 保留15%的余电 避免过放 基本上不会有多少所谓的日历寿命影响
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FROM 175.0.49.*