Which has longer life, a lithium battery or a nickel-metal hydride battery?

Introduction Which has longer life, a lithium battery or a nickel-metal hydride battery? Nickel-metal hydride batteries have a longer lifespan. The differences between nickel metal hydride batteries and lithium batteries are as follows: 1. The cell voltage is differen

Which has longer life, a lithium battery or a nickel-metal hydride battery?

Nickel-metal hydride batteries have longer lifeThe differences between nickel-metal hydride batteries and lithium batteries are as follows :

1. Different cell voltages. The voltage of lithium-ion batteries is 3.7-4.2V, and the voltage of nickel-metal hydride batteries is only 1.2V. The capacity of one lithium-ion battery is equivalent to three batteries nickel-metal hydride connected in series.

2. The loading speed is different. Due to the active performance of lithium ions, they move faster inside the battery, so the charging current is larger and the charging speed is faster. A lithium-ion battery can be fully charged in about 3 hours, while the charging speed of nickel is high. metal hydride batteries are very slow and it takes about 1 day.

3.The energy density is different. Lithium-ion batteries have a high energy density. In the first batch of promotional catalogs in 2019, the energy density of electric vehicle batteries reached more than 160 Wh/kg; nickel-metal hydride batteries have a low energy density, only 40 to 70 Wh/kg; kg. Therefore, at equal volume, lithium-ion batteries have a greater capacity than nickel-metal hydride batteries.

First, let's take it literally:

Warped edges? =PP apron is pressed by irregular force

Cause analysis:

1. The upper chamfer of the three-joint mold is too large, resulting in significant deformation of the PP deck. under the steel hull.

2. The size of the cap is large and the outer diameter of the PP rubber ring is too large. The general specification is 17.65*4.35.

Steel hullor segmented drawn steel shell

3. The outer diameter of the battery core (too small), 18.10 --- 18.25 is the conventional size.

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