NI-MH: n ladattavan akun ja litium-ioni-akun välinen tekninen komplementaarisuus

Ni-Mh ladattavat akut ja litium-ion-akut ovat kaksi valtavirran ladattavaa akkutekniikkaa, joista jokaisella on omat ainutlaatuiset edut ja rajoitukset. Teknisen täydentävyyden kannalta nämä kaksi voivat oppia toisiltaan ja edistää yhdessä akkutekniikan etenemistä ja kehittämistä.
Litium-ioni-akut ovat huomattavasti parempia kuin Ni-MH: n ladattavat akut energiatiheyden suhteen. At present, the energy density of lithium-ion batteries has reached 240-300Wh/kg or even higher, while the energy density of nickel-metal hydride batteries is up to about 140Wh/kg. This means that under the same volume or weight, lithium-ion batteries can store more energy and are suitable for use in scenarios with higher energy density requirements, such as portable electronic devices, electric vehicles, etc. On the contrary, NI-MH rechargeable battery is relatively heavy in weight, but its low cost and better safety performance give it an advantage in certain situations with higher cost and safety requirements.
In terms of cycle life, lithium-ion batteries usually have a longer service life, with the number of charge and discharge cycles reaching more than 1,000 times, while the cycle life of NI-MH rechargeable batteries is generally around 500 times. This advantage of lithium-ion batteries makes them more durable in applications that require frequent charging and discharging, reducing long-term use costs. However, NI-MH rechargeable battery has better cycle stability in high-temperature environments and strong resistance to overcharge and over-discharge, which is particularly important for applications in certain special working environments.
NI-MH rechargeable battery has good performance in terms of safety, is not easy to burn and has a relatively mature overcharge and over-discharge protection mechanism. Sisällä käytetty epäorgaaninen elektrolyyttijärjestelmä tekee paristosta vähemmän alttiita lämmön karkotukseen, kun se on ylikuormitettu tai ylikuormitettu. Although lithium-ion batteries have high energy density, there is a risk of thermal runaway and explosion, especially under bad conditions such as high temperature, short circuit or external impact. Siksi turvallisuuden kannalta NI-MH-ladattava akku tarjoaa tärkeän viitteen ja viitteen litium-ioni-akkuihin.