New LG lithium batteries $600 per KWH
LG has a new line of lithium batteries out, and the rumor is they are 600$ per KWH. I am surprised no one on here has mentioned the newer LG Chem RESU lithium ion batteries. They have managed to pac...
Forum Discussion
Gordon,
As I understand it, an individual 2V lead acid based battery cell can be made very, very large so as to have a tremendous amp hour capacity (i.e. as much as necessary electro-chemistry volume per cell). So whatever voltage battery you might want with this same tremendous amp hour capacity only requires putting as many as required of these large capacity 2V cells in series to get the voltage you want.
So I'm wondering if large capacity Li battery banks might have an inherent Achilles' Heel in that each individual cell is limited to a relatively small inherent capacity. Hence large Li battery bank storage capacities must contain many, many times as many individual cells in parallel/series (as compared to older technology batteries) in order get large capacity at any given voltage.
In the final analysis this "is not good" from a battery system reliability perspective. Minimum inter-connections is always better than many inter-connections, plus ... since many more individual cells are required for any given LI capacity desired ... there are many more "points for failure" within the large quantity of individual cells themselves, not even taking into account the inter-connection reliability issue created when hooking up all these cells together.
Does anyone know what the amp-hour upscaling issues are with individual Li battery cells?
As I understand it, an individual 2V lead acid based battery cell can be made very, very large so as to have a tremendous amp hour capacity (i.e. as much as necessary electro-chemistry volume per cell). So whatever voltage battery you might want with this same tremendous amp hour capacity only requires putting as many as required of these large capacity 2V cells in series to get the voltage you want.
So I'm wondering if large capacity Li battery banks might have an inherent Achilles' Heel in that each individual cell is limited to a relatively small inherent capacity. Hence large Li battery bank storage capacities must contain many, many times as many individual cells in parallel/series (as compared to older technology batteries) in order get large capacity at any given voltage.
In the final analysis this "is not good" from a battery system reliability perspective. Minimum inter-connections is always better than many inter-connections, plus ... since many more individual cells are required for any given LI capacity desired ... there are many more "points for failure" within the large quantity of individual cells themselves, not even taking into account the inter-connection reliability issue created when hooking up all these cells together.
Does anyone know what the amp-hour upscaling issues are with individual Li battery cells?
