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Secret Of 12v 20Ah Lithium Ion Battery Evolution

Shenzhen Sinoli Electronic Co.,Ltd | Updated: Sep 23, 2018

do you think lithium ion battery is just a kind of battery made by lithium ion? that's all?

absolutely not.


Lithium ion battery has it's own evolution in anode material lithium.

Let's have a look at Lithium ion battery evolution:

H.LiAnodeCathodElectrolyteTime
1st Generation4.2v LiCoO2CokePC/DMC LiPF61991-
2nd Generation4.3v LiCoO2NG                        AG                      Li4Ti5O12EC-DMC, LiPF61994-
LiMn2O4
LiNi1/3Co1/3Mn1/3O2
LiFePO4
3rd Generation4.4-4.6v LiCoO2Soft carbonEC-DMC-EMC,LiPF6+VC,FEC,BP,ES,PS,Silane, LiBOB, LiTFSI,LiFSI,lonic liquid...2014-

LiNix20.5CoyMnzO2Hard carbon

LiNi0.8Co0.15Al0.05O2SnCoC

LiFe1-xMnxPO4SiOx

xLiMnO3   Li(NiCoMn)O2Nano-Si/C

LiNi0.5Mn1.5O4

one generation lithium ion battery should probably take much better advantages of the last generation, from anode material, cathode material, electrolyte etc.  


for example, solide lithium ion battery. it is probabaly supposed to have much higher energy density than the 3rd generation of lithium ion battery, about 350wh/kg as expected. secondly, solide lithium ion battery is supposed to have potential extra heat under control. and solid battery cost would also be probably supposed to be less by 1 RMB. etc.


in the past more than 100 years, 12v 20ah reachargeable battery we are using lead acid, which is huge and not eco-environment, even lead acid battery have memory effective. 


now 12v 20ah lead acid battery is almost replaced by lithium ion battery. in the early years of lithium ion battery development, 12v 20ah is also very huge, with the tech development, 12v 20ah lithium ion battery is getting much smaller.


let's have another look at natioinal planned goal by 2020:

energy weight density: 

single cell 350wh/kg

system 250wh/kg


energy volumn density: 

single 650wh/L

system 320wh/kg


lifecycle: 

single 4000cycle/10years

system 3000cycle/10years

cost: single 0.6rmb /wh


in future, 12v 20ah lithium ion battery will be even smaller.