PATENT CLAIM ANALYSIS

Application Number: 15774920
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["252", "500000"]

Abstract:
A negative electrode active material which has a ternary alloy composition represented by Si—Sn-M (M is one or two or more transition metal elements) and has a microstructure which has a first phase (silicide phase) having a silicide of a transition metal as a main component and a second phase partially containing Sn and having amorphous or low crystalline silicon as a main component, and further has partially a plurality of independent first phases and partially a eutectic structure of the first phase and the second phase is used for an electric device. The negative electrode active material improves cycle durability of an electric device such as a lithium ion secondary battery.

Claim (Index 11):
A method of producing a negative electrode active material for an electric device which comprises a Si-containing alloy having a composition represented by the following Chemical Formula (1):\n Si x Sn y M z A a \u2003\u2003(I) wherein A represents an unavoidable impurity, M represents one or two or more transition metal elements, x, y, z, and a represent a percent by mass, and 0<x<100, 0<y<100, 0<z<100, and 0\u2264a<0.5 and x+y+z+a=100), and has a microstructure which has a first phase having a silicide of a transition metal (silicide) as a main component and a second phase partially containing Sn and having amorphous or low crystalline Si as a main component, at least a part of said Sn being solid-solved in Si, and has partially a plurality of independent first phases and partially a eutectic structure of the first phase and the second phase, the method comprising: making a quenched thin strip at a cooling rate of 1,600,000\u00b0 C./sec or more by a liquid quenching solidification method using a parent alloy having the same composition as the silicon-containing alloy to obtain a negative electrode active material for an electric device comprising the silicon-containing alloy.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 93.0
- Lexical Diversity: 1.80303
- Patent Class: 252.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15774948', '15536935', '15536878', '15537270', '15537324']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8315781704824871
- 35 USC 102 Novelty (BERT): 0.5426126332342055
- Combined Prediction Score: 0.8026816167576589
- Mean Citation Score: 325.376664
- Max Citation Score: 405.71185
- Similarity Product: 383.5433937700928

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test