Browse Definitions :
Definition

lithium polymer battery (LiPo)

A lithium-polymer battery (LiPo) is a rechargeable battery that, in the case of true LiPo, uses solid polymer for the electrolyte and lithium for one of the electrodes. Commercially available LiPo are hybrids: gel polymer or liquid electrolyte in a pouch format, more accurately termed a lithium ion polymer battery.

True LiPo batteries have not reached commercial viability. The batteries referred to as LiPo in commercial use offer reduced thickness, flexibility and weight.

Their qualities make LiPo batteries suited to thin smartphones, tablets and wearables. While LiPo made a splash in radio-controlled hobbies and still remain an option, LiIon (lithium ion) are making a return due to their better discharge abilities. While pouch-type standard LiIon batteries exist, they still require external casing to prevent expansion that would otherwise become a performance and safety issue.

Current LiPo batteries are actually more of a half-step away from LiIon batteries as they don't use a true lithium polymer solid, as the original Bell Laboratory designs of the 1970s had, because the solid polymers don't perform well at room temperature. Both battery types use the same materials for cathodes and anodes. The real internal difference between the two is that the insulator between electrodes is made of a micro-porous polymer in LiPo rather than the traditional porous film separator used for LiIon.

The choice between LiIon and LiPo depends on the application its being chosen for. Today’s LiPo batteries have a shorter shelf life but a longer self-discharge time. Longer self-discharge makes them better for devices that might sit unused a few days here and there. LiPo also have a leg up in fitting tiny and slim forms.

On the other hand, LiPo have worse low-temperature discharge (0'C to 60'C) than traditional LiIon and discharging LiPo batteries to ultra-low voltages can be dangerous. Deep, fast discharges may cause expansion, combustion or even explosion. LiIon cells have better performance for very high-drain uses. Both LiPo and LiIon batteries require special smart chargers and often require circuit protection for the safest use.

This was last updated in December 2016

Continue Reading About lithium polymer battery (LiPo)

SearchCompliance
  • pure risk

    Pure risk refers to risks that are beyond human control and result in a loss or no loss with no possibility of financial gain.

  • risk reporting

    Risk reporting is a method of identifying risks tied to or potentially impacting an organization's business processes.

  • risk exposure

    Risk exposure is the quantified potential loss from business activities currently underway or planned.

SearchSecurity
  • payload (computing)

    In computing, a payload is the carrying capacity of a packet or other transmission data unit.

  • script kiddie

    Script kiddie is a derogative term that computer hackers coined to refer to immature, but often just as dangerous, exploiters of ...

  • cipher

    In cryptography, a cipher is an algorithm for encrypting and decrypting data.

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • fault-tolerant

    Fault-tolerant technology is a capability of a computer system, electronic system or network to deliver uninterrupted service, ...

  • synchronous replication

    Synchronous replication is the process of copying data over a storage area network, local area network or wide area network so ...

SearchStorage
  • object storage

    Object storage, also called object-based storage, is an approach to addressing and manipulating data storage as discrete units, ...

  • gigabyte (GB)

    A gigabyte (GB) -- pronounced with two hard Gs -- is a unit of data storage capacity that is roughly equivalent to 1 billion ...

  • MRAM (magnetoresistive random access memory)

    MRAM (magnetoresistive random access memory) is a method of storing data bits using magnetic states instead of the electrical ...

Close