Recently many lithium ion cell manufacturers have announced that they have started to develop the next generation of lithium ion batteries , that is the solid-state lithium ion batteries. Some lithium ion cell manufacturers have released their solid-state lithium ion batteries to the market, not in full solid state, but in half solid state. Solid-state lithium ion batteries inculde lithium polymer batteries but there are aslo other types of solid state lithium ion batteries.
Here what you exaclty talk about is:
lithium ion battery = liquid lithium ion battery VS Lithium polymer battery = polymer lithium ion battery
There is a wrong opinion: pouch shape or aluminum shell lithium ion batteries are polymer batteries. We can't tell this from the battery shell. It's the electrolyte that differs the cell is liquid lithium ion battery or polymer lithium ion battery.
Lithium-ion Battery: They are older than Lithium-polymer batteries and were first conceptualized in the early part of the 20th century. They grew in popularity during the electronics boom of the 90s and replaced the older nickel-cadmium batteries.
Lithium-polymer Battery: Lithium-polymer batteries came into reckoning in the 1970s. They led to the development of very thin designs with good battery life. There were always questions about their efficiency as compared to Lithium-on batteries. But their sleek designs opened up the development of smaller electronic devices.
Lithium-ion Battery: They are regular battery design with a liquid chemical electrolyte between its positive and negative terminals. They have high energy density and low self-discharge rate. The material used for constructing the terminals of the battery and the electrolyte used has a direct effect on the voltage, efficiency, capacity, and life of the Lithium-ion battery.
Lithium-polymer Battery: They are different from Lithium-ion batteries in that they have a solid chemical or gel-like electrolyte between the battery terminals. They are lightweight with good battery life.
Lithium-polymer and Lithium-ion battery packs should always be used with a protection circuit to prevent the cell from overcharging or completely discharging. Invest time to choose the correct circuit to ensure safety and a longer life for your Lithium-ion or Lithium-polymer batteries.
Which one is better? Lithium polymer battery or Lithium-ion battery?
There are pros & cons to both Lithium-polymer battery and a Lithium-ion battery.
Lithium-ion Battery – Pros & Cons: The most significant advantage of a Lithium-ion battery is its efficiency. They deliver power very efficiently for their size. They are the most used batteries on the planet and the economies of scale make them relatively cheaper to manufacture. They have good performance at both low and high temperatures. They have an average recharge life of 300-400 cycles. They are easy to dispose of and can be recycled easily. They are usually found in your smartphones and mobile devices.
On the cons side, there have been a few episodes of exploding Lithium-ion batteries on aircraft. This has raised safety issues and there are shipping restrictions on Lithium-ion batteries.
Lithium-polymer Battery – Pros & Cons: The outstanding feature of a Lithium-polymer battery is the credit card-thin design it is available. By using gel-like electrolytes, they don’t leak easily and are good for expensive devices. They almost match Lithium-ion batteries on performance. They have better low-temperature performance and good thermal stability
However, they are more expensive to manufacture. They also have a shorter life span and store lesser power.
In conclusion, there is no clear winner in the Lithium-polymer and Lithium-ion battery challenge. The choice is more to do with the features and power needs of your device.
What are the differences between the Lithium-polymer battery and Lithium-ion battery?
Build: Due to their chemical composition, Lithium-ion batteries are usually of a rectangular/ cylindrical shape. As they have a gel-like electrolyte in them, Lithium-polymer batteries are available in various designs and sizes.
Power Storage and Efficiency: Both Lithium-ion and Lithium-polymer batteries have comparable efficiency while Lithium-ion batteries have superior power storage.
Weight & Leakproof: Lithium-polymer batteries are lightweight as compared to Lithium-ion batteries and have a lower chance of suffering from electrolyte leak.
Performance at low Temperatures: Lithium-polymer batteries have a slightly better performance at lower temperatures as compared to Lithium-ion batteries.
What is a “True Lithium-Polymer Battery”?
Lithium-polymer batteries used a dry-solid electrolyte. As i stated in the beginning, there are not any completely dry-solid electrolyte lithium polymer battery in the market now. But half-dry-solid lithium polymer battery has been released. Lithium polymer battery has higher energy density, better chemistry stability and longer cycle life than liquid lithium ion battery.
As a general rule, Lithium-polymer batteries give a better performance and last longer in devices with higher power requirement and in devices that need accelerated power. Lithium-ion batteries give a better performance and survive longer in devices with stable power requirement.
Proper use and good maintenance can greatly enhance the life of your Lithium-ion and Lithium-polymer battery.