Difference between lithium battery ups and lead acid UPS

To talk about the difference between lithium battery ups and lead-acid UPS, we can start with their main battery and talk about the difference between lithium battery and lead-acid battery. Because the biggest difference between battery and UPS power supply is that UPS contains battery, and the biggest difference between lithium battery ups and lead-acid UPS is the difference of battery.
Definition of UPS
UPS is the abbreviation of English name uninterruptible power system / uninterruptible power supply, which means uninterruptible power supply when translated into Chinese. It consists of a battery connected with the host, and a host inverter which converts DC power into commercial power.
UPS is mainly used to provide stable and uninterrupted power supply for a single computer, computer network system or other power electronic equipment, such as solenoid valve, pressure transmitter, etc.
When the mains power input is normal, ups will supply the load after the mains power is stabilized. At this time, the function of UPS is an AC voltage regulator, and it also charges the battery in the machine.
In case of power failure, UPS can immediately convert the DC energy stored in the battery to continue to supply 220 V AC to the load by means of inverter switching. Make the load maintain the normal working state and protect the software and hardware of the load from damage.
Definition of lithium battery
Lithium battery is a kind of battery with lithium metal or lithium alloy as anode material and non-aqueous electrolyte. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable.
Lithium ion batteries are used in lithium battery UPS, so this paper focuses on lithium ion batteries.
There are several types of lithium-ion batteries, including liquid lithium-ion batteries and polymer lithium-ion batteries. Among them, liquid lithium-ion battery refers to the secondary battery in which Li + intercalation compound is positive and negative. Lithium compounds lithium cobalt and lithium manganate were used as positive electrode, and lithium carbon intercalation compound was used as negative electrode.
Definition of lead acid battery
Lead acid battery is a kind of battery whose electrode is mainly made of lead and its oxide and electrolyte is sulfuric acid solution. In the discharge state of lead-acid battery, the main component of positive electrode is lead dioxide, and the main component of negative electrode is lead; Under the charging state, the main component of both positive and negative electrodes is lead sulfate.
Comparison between lithium battery and lead acid battery
Working temperature range: the working temperature range of lithium battery is - 20-60 ℃, no air conditioning is needed, and the equipment installation cost, maintenance cost and electricity cost are reduced. The working temperature range of lead-acid battery is 15-35 ℃.
Environmental protection: lithium battery does not contain any harmful heavy metal elements. Lead acid battery contains lead, antimony and other heavy metals, if abandoned in the field, it is easy to cause serious environmental pollution. It is easy to leak in the process of use and maintenance. When the internal sulfuric acid overflows, it is easy to cause equipment corrosion and personnel injury accidents.
Discharge characteristics: for the same fully charged lithium battery and lead-acid battery, the discharge output characteristics of lithium battery are very stable under the same temperature and different discharge current rates, while the discharge output characteristics of lead-acid battery are very different, which will cause power instability.
There are many differences between lithium batteries and lead-acid batteries, so we will not cite them one by one. From the internal material composition and use characteristics of lithium battery and lead-acid battery, it can be found that there are many differences between lithium battery and lead-acid battery, and these differences are basically the differences between lithium battery ups and lead-acid ups.