Battery knowledge · Other and emerging chemistries
Low self-discharge NiMH
Nickel–metal hydride cells with an improved separator and hydrogen-storage alloy that keep roughly 70–85 % of their charge after a year, where standard NiMH can lose that much in a few months. They are sold charged and ready to use, at the cost of somewhat lower capacity, and since their launch in 2005 have become most of the NiMH market.
- Abbreviation
- LSD NiMH
- Also called
- pre-charged NiMH, ready-to-use NiMH, hybrid NiMH
Example
Other and emerging chemistries: an example situation
Two chemistries can meet the same energy target with different voltage windows and charge termination.
Read Low self-discharge NiMH alongside IEC 61951 in this context. The IEC performance standard for portable sealed nickel cells and batteries: part 1 for nickel–cadmium, part 2 for nickel–metal hydride, which in 2003 absorbed the older IEC 61436 and IEC 61808. It covers designation, dimensions, rated capacity, charge retention and endurance; the 2017 edition of part 2 added a type for low self-discharge cells. Their safety is in IEC 62133-1.
Use in Lemonergy
Do not carry lithium-ion assumptions into every chemistry.
This is a reference concept. No executable Lemonergy block has been verified for this term.
References & further reading
Further reading on this topic
These sources provide broader context; they are not presented as citations for every statement in this entry.
- Promise and reality of post-lithium-ion batteries with high energy densities
Jang Wook Choi, Doron Aurbach · Nature Reviews Materials · 2016
Topic background · Post-lithium-ion materials and battery concepts, including practical cell-level limitations; historical 2016 perspective.
- DOE/EPRI 2013 Electricity Storage Handbook in Collaboration with NRECA
Sandia National Laboratories · 2013
Topic background · Storage technologies and grid services. The publisher notes that its historical cost and deployment figures are outdated.