article thumbnail

U Maryland team devises new method to stabilize high-capacity Si anodes for Li-ion batteries: interfacial oxygen

Green Car Congress

10 times that of graphite anodes used in lithium ion batteries. 270%) during lithium ion insertion/extraction induces enormous mechanical strain that causes pulverization of Si, loss of electrical contact, and uncontrolled growth of solid electrolyte interphase (SEI), resulting in rapid decay of capacity. (a) Credit: ACS, Sun et al.

Maryland 255
article thumbnail

Life cycle analysis of three battery chemistries for PHEVs and BEVs; environmental impacts higher than expected

Green Car Congress

They compiled a transparent life cycle inventory (LCI) in a component-wise manner for nickel metal hydride (NiMH), nickel cobalt manganese lithium-ion (NCM), and iron phosphate lithium-ion (LFP) batteries. They also found higher life cycle global warming emissions than have been previously reported.

article thumbnail

Renault makes public its lifecycle study of Fluence ICE vs Fluence EV

Green Car Congress

Photochemical Ozone Creation Potential (kg Ethene equivalent). Quantifies the production of pollutant ozone (? to ozone layer), the results of the reaction of sunlight on NO x and volatile organic compounds. Li-ion system production in the LCA. Characterizes the acid substances increase (NO x , SO 2.)

Li-ion 364
article thumbnail

Abt life-cycle analysis of different Li-ion chemistries for PHEVs and EVs identifies opportunities for improving environmental profile of batteries

Green Car Congress

Generic process flow diagram for lithium-ion batteries for vehicles (color coded to present LCI data sources). It assessed three currently manufactured Li-ion battery technologies for EVs and two for a PHEV with a 40-mile all-electric range: lithium-manganese oxide (LiMnO 2 ); lithium-nickel-cobalt-manganese-oxide (LiNi 0.4

Li-ion 210
article thumbnail

Lifecycle study finds that environmental impacts of silicon-anode Li-ion battery could be roughly comparable with conventional Li-ion battery

Green Car Congress

Credit: ACS, Li et al. —Li et al. —Li et al. Bingbing Li, Xianfeng Gao, Jianyang Li, and Chris Yuan (2014) “Life Cycle Environmental Impact of High-Capacity Lithium Ion Battery with Silicon Nanowires Anode for Electric Vehicles,” Environmental Science & Technology doi: 10.1021/es4037786.

Li-ion 265
article thumbnail

PNNL team finds correlation between reaction mechanism for zeolite SCR catalyst for NOx aftertreatment and bacterial enzyme catalysis

Green Car Congress

Computer model of Cu-SSZ-13 shows nitric oxide (ball-and-stick) interacting with a positively charged copper ion (copper ball) at an unexpected angle (red dotted lines). Zeolites are crystalline alumino-silicate minerals that can accommodate metal ions—metal atoms with a slight charge—for catalytic applications.

Li-ion 225