Page 12 - Shimadzu Journal vol.2 Issue3

Shimadzu Selection

Shimadzu selected the following articles for this issue. They derive
from application notes related to material sciences, and utilize a variety of
instruments we produce. Cutting-edge technologies are also included.

Selection 1
Selection 1 Lithium-Ion Battery
Lithium-Ion Battery
X-Ray CT Observation of Lithium-Ion Battery Electrodes
Today, rechargeable lithium-ion batteries are widely used in a variety of fields and are available in a wide range of shapes,
capacities, and applications. X-ray CT systems are able to non-destructively observe the internal structure of items. Therefore, they
can be used to analyze defective batteries, compare conforming and nonconforming batteries, compare battery status before and
after charging or discharging, evaluate changes in the internal structure of batteries during cycle testing, and so on.

Selection 2 Lithium-Ion Battery
Lithium Ion Battery Binder Observations and Measurements of Physical Properties in Electrolyte
Solution Using Scanning Probe Microscopy (SPM)
Lithium ion batteries are being developed for use in hybrid cars and electric vehicles, and further improvements are expected in
terms of increased power output and battery performance. Lithium ion batteries are composed of a cathode, anode, separator and
electrolyte. Normally the anode is made from a graphite active material, but recent years have seen research into silicon (Si) active
materials as next-generation anode materials that will have a higher theoretical capacity than graphite active materials. Here, we
carried out SPM shape observations of binder samples held in both the electrolyte material used for actual battery operation and in
N2 gas for reference.

Selection 1
Selection 3 Lithium-Ion Battery
Lithium-Ion Battery
Simultaneous Analysis of Evolved Gas Produced by the Degradation of a Lithium-Ion Battery
In evaluating the degradation of lithium-ion rechargeable batteries, it is necessary to analyze the gases produced inside the
battery. The composition of the sampled internal gases can be investigated by conveying them to a gas chromatograph. The
Shimadzu Tracera High-Sensitivity Gas Chromatograph uses a revolutionary plasma technology to detect all compounds except
He and Ne. The system is capable of the simultaneous analysis of C1 to C3 hydrocarbons and inorganic gases including
hydrogen, so it eliminates the conventional need for carrier gas switching or combined use of multiple systems. This Data Sheet
introduces the simultaneous analysis of internal gases from a lithium-ion rechargeable battery utilizing the Tracera system.

Selection 4 Lithium-Ion Battery
Analysis of degradation products in electrolyte for rechargeable lithium-ion battery through
n
high mass accuracy MS and multivariate statistical technique
The electrolyte of a LiB is consisting of a lithium salt in an aprotic organic solvent. The typical operational potential of a LiB is
between 0 and 5 V. Therefore, solvent can be reduced or oxidized at the negative and positive electrodes during the battery
charging process. As a result, various degradation products are generated in the electrolyte and cause some problems such as
a decrease in the capacitance of battery. Here, we present the analysis method of degradation products generated in
electrolyte using high mass accuracy MS n and multivariate statistical technique.

Carbon Fiber Reifor
Selection 5 Lithium-Ion Batteryced Plastic
Selection 1
Analysis of Polyimide CFRP by TG-FTIR
Epoxy resin is typically used in carbon fiber composite materials (carbon fiber reinforced plastic: CFRP), however, due to its
limited heat resistance, high heat-resistant CFRP materials using polyimide resin are being developed. Here, we introduce the
results of combined Thermogravimetric (TG) - Fourier Transform Infrared Spectroscopy (FTIR) analysis of thermoplastic
polyimide and thermosetting polyimide prepregs, polyimide matrices impregnated with carbon fibers and formed into sheets
ready for processing.

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