TWI603528B - Precursor composition and amorphous carbon material - Google Patents

Description

Precursor composition and amorphous carbon material

The present invention relates to an amorphous carbon material for a negative electrode, and more particularly to a precursor composition for forming an amorphous carbon material for a negative electrode.

The Chinese Patent Publication No. 102959771 discloses a raw material oil composition for a negative electrode carbon material of a lithium ion secondary battery. The negative electrode carbon material formed of the raw material oil composition is used as a negative electrode and applied to a lithium ion secondary battery, so that the lithium ion secondary battery can have rapid charge and discharge characteristics.

The feedstock oil composition is a mixture of a bottom oil of a residual oil fluid catalytic cracking unit of a petroleum heavy oil, a bottom oil of a fluid catalytic cracking unit, and a desulfurization and deoiling oil. The total amount of the stock oil composition is 100% by weight, and the residual oil fluid catalytic cracking unit has a bottom oil content of 10% by weight to 100% by weight. The component in the stock oil composition contains a saturated component, an aromatic component, a resin component, and an asphaltene component. The stock oil composition has an average molecular weight ranging from 400 to 600, and the saturated component content ranges from 30% by weight to 50% by weight based on the total amount of the saturated component, the aromatic component, the resin component and the asphaltene component of 100% by weight. And the aromatic component content ranges from 50% by weight to 70% by weight.

Although the lithium ion secondary battery can have rapid charge and discharge characteristics by the raw material oil composition of the patent, the lithium ion secondary battery has poor capacitance and does not mention how to reduce the irreversible percentage.

In view of the above, it is a subject of those skilled in the art to provide a feedstock oil composition for forming a negative electrode carbon material to increase the capacity of the battery and reduce the irreversible percentage.

Accordingly, it is a first object of the present invention to provide a precursor composition that overcomes at least one of the disadvantages of the prior art.

Thus, the precursor composition of the present invention is used to form an amorphous carbon material for a negative electrode. The precursor composition comprises, in a total amount of 100 wt% of the precursor composition, the carbon element content ranges from 84 wt% to 92.1 wt%, the hydrogen element content ranges from 6 wt% to 10.3 wt%, and the nitrogen element content ranges from 0.59 wt% to 2 wt%, and the sulfur element content ranges from 0 wt% to 6 wt%; the precursor composition has a weight average molecular weight ranging from 149 to 900, and a molecular weight distribution index ranging from 1.33 to 6.87; The precursor composition has an ash content ranging from 0% by weight to 0.0478% by weight based on 100% by weight of the total amount; and the aromatic hydrocarbon content is in the range of 15% by weight to 82% by weight based on the total amount of the precursor composition of 100% by weight. The alkane content ranges from 12 wt% to 51 wt%, and the naphthenic content ranges from 6 wt% to 34 wt%.

A second object of the present invention is to provide an amorphous carbon material.

The amorphous carbon material of the present invention is formed by performing a treatment using the precursor composition described above, wherein the treatment comprises a coking process and a calcination process.

The effect of the present invention is to adjust the carbon content, the hydrogen element content, the nitrogen element content, the sulfur element content, the ratio of the number of carbon atoms to the number of hydrogen atoms, the weight average molecular weight, the molecular weight distribution index, the ash content, the aromatic hydrocarbon content, The saturated alkane content and the naphthenic content, when the amorphous carbon material formed by the precursor composition is applied to a battery as a negative electrode, can increase the capacity of the battery and reduce the irreversible percentage of the battery.

The contents of the present invention will be described in detail below.

The precursor composition of the present invention is subjected to elemental analysis to obtain the contents of carbon, hydrogen, nitrogen and sulfur. The number of carbon atoms is obtained by dividing the carbon element content obtained by elemental analysis by the atomic weight of the carbon element. The number of hydrogen atoms is the atomic weight of the hydrogen element obtained by elemental analysis divided by the hydrogen element content. The molecular weight distribution index refers to a value (Mw/Mn) obtained by dividing the weight average molecular weight (Mw) by the number average molecular weight (Mn). The ash refers to the amount of non-combustible material remaining after the precursor composition is burned in the presence of oxygen. The aromatic hydrocarbon is, for example but not limited to, naphthalene or anthracene. The saturated alkane is, for example but not limited to, eicosane, triacontane or tetradecane. The cycloalkane is, for example but not limited to, cyclopentane or cyclohexane.

Preferably, the carbon element content ranges from 84% by weight to 92% by weight and the nitrogen element content ranges from 0.59 wt% to 1 wt%; the precursor composition has an ash content ranging from 0.001 wt% to 0.0478 wt%.

Preferably, the carbon element content ranges from 91.0 wt% to 92.1 wt%, the hydrogen element content ranges from 7.1 wt% to 7.5 wt%, the nitrogen element content ranges from 0.62 wt% to 1.16 wt%, and the sulfur element The content ranges from 0.045 wt% to 0.11 wt%; the weight average molecular weight ranges from 541 to 900, and the molecular weight distribution index ranges from 3.49 to 4.22; the precursor composition has an ash content ranging from 0 wt% to 0.001 wt%; the aromatic hydrocarbon The content ranges from 64.8 wt% to 76.2 wt%, the saturated alkane content ranges from 12.4 wt% to 18.5 wt%, and the naphthenic content ranges from 11.4 wt% to 20.1 wt%.

The precursor composition of the present invention is adjusted as an oil or a mixture of a plurality of oil materials, such as, but not limited to, refinery products or refinery by-products. The refinery product or the refinery by-product is obtained by physical separation treatment and/or chemical reaction treatment of a crude oil. In detail, the crude oil is subjected to a fractionation treatment (for example, an atmospheric distillation process) to obtain primary oil materials such as light petroleum brain (also referred to as light oil), heavy petroleum brain, kerosene, diesel oil, and residual oil, and further selectively selected according to requirements. A refining process such as a desulfurization process, a hydrodesulfurization process, a cracking process, a recombination process, a vacuum distillation process, an extraction process, or a blowing process. The cleavage program is, for example, a catalytic cleavage program, a thermal lysis program or a hydrocracking program.

The refinery product or the refinery by-product such as, but not limited to, pyrolysis fuel oil (hereinafter referred to as PFO), residual of fluidized catalytic cracking (RFCC) obtained by catalytic cracking procedure, soft asphalt , heavy fuel oil (HFO), hard tar oil, oil obtained by vacuum distillation of bottom residue obtained by catalytic cracking procedure (hereinafter referred to as vacuum distillation RFCC), pyrolysis gasoline (pyrolysis gasoline) Oil, hereinafter referred to as PGO), lubricating base oil, residual of de-sulfur (hereinafter referred to as RDS), combined extract (hereinafter referred to as CE), and hydrogenate desulfurization combined extract (hydrogenate desulfurization combined extract) , asphalt (also known as asphalt) or residue of cracking (ROC).

The PFO is obtained by fractional distillation of crude oil to obtain a heavy petroleum brain, which is obtained by a cracking procedure of the heavy petroleum brain.

The RFCC is a vacuum gas oil (Vacuum Gas Oil) formed by vacuum distillation of residual oil remaining after fractionation treatment, and then the vacuum gasification oil is sequentially subjected to a vacuum hydrodesulfurization process and a catalyst cracking procedure. Obtained later.

The soft asphalt is a bottom oil remaining after the residual oil remaining after the fractionation treatment of the crude oil is subjected to a vacuum distillation process.

The HFO is obtained by blowing a light component from a PFO at a high temperature.

The hard asphalt is a bottom oil remaining after the residual oil of the crude oil after fractionation treatment is subjected to a vacuum distillation process, and then the raffinate oil obtained by the extraction process (that is, after extracting the desired oil with an extractant, the remaining non- Oil in the extractant). The extraction procedure uses propane/butane as the extractant.

The vacuum distillation RFCC is obtained by subjecting the above RFCC to a vacuum distillation process.

The PGO is obtained by fractional distillation of crude oil to obtain a heavy petroleum brain, and then obtained by a heavy petroleum brain by a cracking procedure.

The lubricating base oil is a vacuum gas-forming oil formed by vacuum distillation of residual oil remaining by fractional distillation, and then obtained by vacuum hydrogenation desulfurization procedure and extraction procedure. The extraction procedure utilizes furfural as an extractant to remove components such as naphthenic acids, polycyclic aromatic hydrocarbons, and heterocyclic compounds. The lubricating base oil is, for example, a first lubricating base oil described below or a second lubricating base oil described below.

The RDS is obtained after the residual oil of the crude oil after fractionation treatment is subjected to a hydrodesulfurization process. The RDS is, for example, the first desulfurization residue described below or the second desulfurization residue described below.

The CE is an extraction oil obtained by mixing the above-mentioned hard asphalt oil with a vacuum gas oil and then subjected to an extraction process (that is, an oil extracted by using an extractant). The extraction procedure utilizes furfural as an extractant.

The desulfurization mixed extraction oil is obtained by CE hydrodesulfurization procedure.

The asphalt is obtained from a bottom oil remaining after the residual oil of the crude oil by fractional distillation and subjected to a vacuum distillation process, and then obtained through a blowing process.

The ROC is obtained by sequentially subjecting the residual oil remaining by the fractionation treatment to a vacuum hydrodesulfurization procedure and a cracking procedure.

The present invention exemplifies one or several compositions of the PFO, the RFCC, the HFO, the hard asphalt, the PGO, the lubricating base oil, the RDS, the CE, the desulfurized mixed extraction oil, the asphalt, and the ROC. Such as, but not limited to, such a compositional form, and the carbon element (hereinafter abbreviated as C) content (wt%), hydrogen element (hereinafter abbreviated as H) content (wt%), and nitrogen element (hereinafter referred to as the equivalent) Abbreviated as N) content (wt%), sulfur element (hereinafter abbreviated as S) content (wt%), ratio of number of carbon atoms to number of hydrogen atoms (hereinafter abbreviated as C/H), weight average molecular weight (weight average molecular weight) , hereinafter abbreviated as Mw), number average molecular weight (hereinafter abbreviated as Mn), peak average molecular weight (hereinafter abbreviated as Mp, which is the highest peak value in the molecular weight distribution), and molecular weight distribution index (abbreviated as Mw) The following is abbreviated as Mw/Mn), ash content, aromatic hydrocarbon (hereinafter abbreviated as Ca) content (wt%), saturated alkane (hereinafter abbreviated as Cp) content (wt%), and naphthenic hydrocarbon (hereinafter abbreviated as Cn) content (hereinafter abbreviated as Cn) ( Wt%), presented in Tables 1 and 2.

Table 1         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> --: indicates unmeasured</td><td> C </td><td > H </td><td> N </td><td> S </td><td> C/H </td><td> Mn </td></tr><tr><td> PFO </td><td> 90.99 </td><td> 8.30 </td><td> 0.63 </td><td> 0.15 </td><td> 0.91 </td><td> 152 < /td></tr><tr><td> RFCC </td><td> 88.96 </td><td> 9.70 </td><td> 0.48 </td><td> 0.80 </td> <td> 0.76 </td><td> 167 </td></tr><tr><td> HFO </td><td> 92.04 </td><td> 7.12 </td><td> 0.62 </td><td> 0.11 </td><td> 1.07 </td><td> 254 </td></tr><tr><td> Hard tar oil</td><td> 84.34 < /td><td> 9.56 </td><td> 1.51 </td><td> 3.66 </td><td> 0.73 </td><td> 779 </td></tr><tr> <td> PGO </td><td> 90.75 </td><td> 8.28 </td><td> 0.50 </td><td> 0.10 </td><td> 0.91 </td><td > 101 </td></tr><tr><td> First Lubricating Base Oil</td><td> 88.44 </td><td> 8.91 </td><td> 0.61 </td>< Td> 6.06 </td><td> 0.82 </td><td> 192 </td></tr><tr><td> Second Lubricating Base Oil</td><td> 84.65 </td> <td> 10.43 </td><td> 0.67 </td><td> 4.60 </td><td> 0.67 </td><td> 326 < /td></tr><tr><td> First Desulfurization Residue</td><td> 87.40 </td><td> 11.49 </td><td> 0.67 </td><td> 0.61 </td><td> 0.63 </td><td> 454 </td></tr><tr><td> CE </td><td> 84.23 </td><td> 8.99 </ Td><td> 1.36 </td><td> 6.28 </td><td> 0.78 </td><td> 234 </td></tr><tr><td> Desulfurization mixed extraction oil< /td><td> 87.26 </td><td> 10.27 </td><td> 1.96 </td><td> 0.43 </td><td> 0.71 </td><td> 231 </td ></tr><tr><td> tar</td><td> 90.51 </td><td> 5.48 </td><td> 0.85 </td><td> -- </td>< Td> 1.38 </td><td> 189 </td></tr><tr><td> ROC </td><td> 91.28 </td><td> 8.08 </td><td> 0.61 </td><td> 0.79 </td><td> 0.94 </td><td> 133 </td></tr><tr><td> second desulfurization residue</td><td > 86.25 </td><td> 12.40 </td><td> 0.99 </td><td> 0.43 </td><td> 0.58 </td><td> 474 </td></tr> </TBODY></TABLE>

Table 2         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> --: indicates unmeasured</td><td> Mw </td><td > Mp </td><td> Mw/Mn </td><td> ash</td><td> Ca </td><td> Cp </td><td> Cn </td></ Tr><tr><td> PFO </td><td> 653 </td><td> 97 </td><td> 4.30 </td><td> <0.001 </td><td> 63.1 </td><td> 20.4 </td><td> 16.5 </td></tr><tr><td> RFCC </td><td> 280 </td><td> 115 </td ><td> 1.68 </td><td> 0.0035 </td><td> 39.9 </td><td> 35.0 </td><td> 25.2 </td></tr><tr><td > HFO </td><td> 886 </td><td> 329 </td><td> 3.49 </td><td> <0.001 </td><td> 64.8 </td><td> 18.5 </td><td> 16.7 </td></tr><tr><td> Hard tar </td><td> 2476 </td><td> 1093 </td><td> 3.53 < /td><td> 0.0478 </td><td> -- </td><td> -- </td><td> -- </td></tr><tr><td> PGO < /td><td> 149 </td><td> 83 </td><td> 1.48 </td><td> <0.001 </td><td> 65.7 </td><td> 21.5 </ Td><td> 12.9 </td></tr><tr><td> First Lubricating Base Oil</td><td> 255 </td><td> 269 </td><td> 1.33 < /td><td> <0.001 </td><td> 49.4 </td><td> 30.5 </td><td> 20.1 </td></tr><tr><td> Second Lubricating Base Oil</td><td> 488 </td><td> 482 </td><td> 1.50 </td><td> <0.001 </td><td> 41.1 </td> <td> 33.8 </td><td> 25.1 </td></tr><tr><td> First Desulfurization Residue</td><td> 1154 </td><td> 918 </ Td><td> 2.54 </td><td> 0.0020 </td><td> 15.0 </td><td> 50.8 </td><td> 34.2 </td></tr><tr>< Td> CE </td><td> 329 </td><td> 314 </td><td> 1.41 </td><td> <0.001 </td><td> 40.8 </td><td > 33.1 </td><td> 26.1 </td></tr><tr><td> Desulfurization mixed extraction oil</td><td> 314 </td><td> 285 </td>< Td> 1.36 </td><td> <0.001 </td><td> 32.5 </td><td> 36.3 </td><td> 31.2 </td></tr><tr><td> Asphalt</td><td> 410 </td><td> 215 </td><td> 2.17 </td><td> -- </td><td> 82.1 </td><td> 12.1 </td><td> 5.8 </td></tr><tr><td> ROC </td><td> 189 </td><td> 112 </td><td> 1.42 </td ><td> 0.1612 </td><td> 70.5 </td><td> 17.0 </td><td> 12.6 </td></tr><tr><td> second desulfurization residue< /td><td> 1686 </td><td> 608 </td><td> 3.56 </td><td> -- </td><td> -- </td><td> -- </td><td> -- </td></tr></TBODY></TABLE>

An amorphous carbon material is formed by a treatment using the precursor composition of the present invention. The process includes a coking process and a calcination process. The coking process is intended to coke the precursor composition to form a coked product. The coking process includes a heating step and a cooling step. Preferably, the heating step has an operating temperature in the range of from 400 ° C to 600 ° C. More preferably, the heating step has an operating temperature in the range of from 500 ° C to 550 ° C. Preferably, the heating step has an operating time ranging from 1 hour to 16 hours. More preferably, the heating step has an operating time ranging from 4 hours to 8 hours. Preferably, the heating step has an operating pressure in the range of 2 atm to 40 atm. Preferably, the heating step has a heating rate in the range of 5 ° C / min to 10 ° C / min. The cooling step is to reduce the temperature from the heating step to a predetermined temperature. The predetermined temperature is, for example, room temperature. The calcination procedure aims to carbonize the coked product to form an amorphous carbon material. The carbonization process causes the coked product to undergo a polycondensation reaction and/or a dehydrogenation reaction and/or a cleavage reaction to rearrange the structure of the coked product. Preferably, the calcination procedure has an operating temperature in the range of from 1000 °C to 1200 °C. Preferably, the calcination procedure has an operating time range of more than 4 hours. Preferably, the amorphous carbon material has a pore volume of not more than 0.01 cm ³ /g. The process also includes a grinding procedure after the calcination process. The purpose of the polishing procedure is to uniformize the particle size and/or shape of the amorphous carbon material to form a ground amorphous carbon material. The process also includes a particle size fractionation procedure following the grinding procedure. The particle size fractionation program aims to classify the ground amorphous carbon material according to different particle diameters, and classify the ground amorphous carbon materials having a particle diameter of less than 32 μm into one class.

A negative electrode comprises a conductive film formed of a film-forming component. The film-forming component comprises the above amorphous carbon material and a binder. The amorphous carbon material is contained in an amount ranging from 90% by weight to 92% by weight based on 100% by weight of the total of the conductive film. The binder is, for example but not limited to, polyvinylidenefluoride (PVDF). The polyvinylidene fluoride is, for example, manufactured by Kureha Chemical Industry Co., Ltd. and traded under the trade name KF9200. The binder is contained in an amount ranging from 3 wt% to 7 wt%, based on 100% by weight of the total of the conductive film. In order to make the conductive film have better conductivity, preferably, the film-forming component further contains a co-ducing agent. The coagulant is for example but not limited to a conductive carbon material. The conductive carbon material is, for example but not limited to, conductive graphite obtained from Timcal and sold under the trade name Super P, and conductive graphite of KS-6. The content of the auxiliary agent ranges from 1% by weight to 4% by weight based on 100% by weight of the total of the conductive film. The conductive film is formed by mixing the film-forming component with a solvent and performing film formation treatment and drying treatment. The film forming process is, for example but not limited to, a coating method. The solvent is, for example but not limited to, N-methyl-2-pyrrolidone (NMP).

The negative electrode further includes a conductive carrier for carrying the conductive film. The conductive carrier is for example but not limited to a copper foil. The negative electrode is produced by a conventional method for producing a negative electrode. For example, the film-forming component is coated on a copper foil (thickness: 14 μm) using a coater, and is carried out at a temperature lower than 200 ° C. The negative electrode can be obtained by vacuum drying treatment for at least 8 hours. Further, the rolling process and the cutting process are performed depending on the subsequent dimensions and the like.

The lithium battery includes the above negative electrode. The lithium battery is produced by a method for producing a lithium battery. For example, in a glove box, a lithium metal foil as a positive electrode, the negative electrode, an electrolyte, and a separator are assembled into a CR2032 button type half-cell. The electrolyte contains a lithium salt, a solvent, and an additive. The lithium salt is, for example but not limited to, lithium hexafluorophosphate (LiPF _{6 for} short). The solvent is, for example but not limited to, ethylene carbonate (EC), dimethyl carbonate (DMC), or ethyl methyl carbonate (EMC). The additive is, for example but not limited to, vinylene carbonate (VC). The separator is, for example but not limited to, a product manufactured by Celgard.

The present invention will be further illustrated by the following examples, but it should be understood that this embodiment is intended to be illustrative only and not to be construed as limiting.

Example 1 Precursor Composition

2 parts by weight of PFO is mixed with 1 part by weight of the first desulfurized residual oil to form a precursor composition of the present invention.

Examples 2 to 4 and Comparative Examples 1 to 9

Examples 2 to 4 and Comparative Examples 1 to 9 were prepared in the same manner as in Example 1 except that the kind of the raw material and the amount thereof were changed, and the kind of the raw material and the amount thereof were as follows. 3 and Table 4.

Analysis of C, H, N and S content: analysis using an elemental analyzer (label: Elementar Analysensysteme; model: GmbH).

Mw analysis: Gel permeation Chromatography (Gel Permeation Chromatography, brand: HP; model: HP1090M), using a variety of known absolute molecular weight polystyrene as a standard, analysis.

Mn analysis: Gel permeation Chromatography (Gel Permeation Chromatography, brand: HP; model: HP1090M), using a variety of known absolute molecular weight polystyrene as a standard, analysis.

Mp analysis: Gel permeation Chromatography (Gel Permeation Chromatography, brand: HP; model: HP1090M), using a variety of known absolute molecular weight polystyrene as a standard, analysis.

Ash analysis: analysis according to the ASTM D482 standard test method.

Ca, Cp, and Cn content analysis: 0.25 ml of the precursor compositions of Examples 1 to 3 and Comparative Examples 1 to 9 were respectively added to 0.5 ml of a solvent [containing CDCl ₃ and 0.046 M of triethylsulfonium iron (III)] Mix and form 12 test articles separately. The waiting samples were placed in a 5 mm test tube and measured by a ¹³ C-NMR spectrometer (label: Agilent; model: 400-MR DDR2). The Ca is a peak having a chemical shift between 105 ppm and 165 ppm, and the Cp and Cn are peaks having a chemical shift between 0 ppm and 55 ppm, wherein the Cp is a peak and Cn is a hump. The contents of Ca, Cp and Cn were calculated from the integrated areas of the peaks.

table 3         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> Example</td><td> C </td><td> H </td ><td> N </td><td> S </td><td> C/H </td><td> Mn </td><td> Mw </td></tr><tr> <td> 1 </td><td> 2 parts by weight of PFO </td><td> 1 part by weight of the first desulfurized residue</td><td> 89.79 </td><td> 9.36 </td ><td> 0.64 </td><td> 0.30 </td><td> 0.80 </td><td> 253 </td><td> 820 </td></tr><tr><td > 2 </td><td> 1 part by weight HFO </td><td> 92.04 </td><td> 7.12 </td><td> 0.62 </td><td> 0.11 </td>< Td> 1.07 </td><td> 254 </td><td> 886 </td></tr><tr><td> 3 </td><td> 1 part by weight PGO </td>< Td> 1 part by weight of the first desulfurization residue</td><td> 89.08 </td><td> 9.89 </td><td> 0.59 </td><td> 0.36 </td><td> 0.75 </td><td> 278 </td><td> 652 </td></tr><tr><td> 4 </td><td> 1 part by weight of desulfurized mixed extraction oil</td ><td> 87.26 </td><td> 10.27 </td><td> 1.96 </td><td> 0.43 </td><td> 0.71 </td><td> 231 </td>< Td> 314 </td></tr><tr><td> Comparative Example </td><td> C </td><td> H </td><td> N </td><td> S </td><td> C/H </td><td> Mn </td><td> Mw </td></tr><tr><td> 1 </td><td> 1 part by weight of the first lubricating base oil</td><td> 88.44 </td><td> 8.91 </td><td> 0.61 </td><td> 6.06 </td ><td> 0.82 </td><td> 192 </td><td> 255 </td></tr><tr><td> 2 </td><td> 1 part by weight of the second lubrication foundation Oil</td><td> 84.65 </td><td> 10.43 </td><td> 0.67 </td><td> 4.60 </td><td> 0.67 </td><td> 326 < /td><td> 488 </td></tr><tr><td> 3 </td><td> 1 part by weight of the first desulfurization residue</td><td> 87.40 </td> <td> 11.49 </td><td> 0.67 </td><td> 0.61 </td><td> 0.63 </td><td> 454 </td><td> 1154 </td></ Tr><tr><td> 4 </td><td> 2 parts by weight of PGO </td><td> 1 part by weight of the first desulfurization residue</td><td> 89.63 </td><td > 9.35 </td><td> 0.56 </td><td> 0.27 </td><td> 0.80 </td><td> 219 </td><td> 484 </td></tr> <tr><td> 5 </td><td> 1 part by weight of PFO </td><td> 1 part by weight of the first desulfurized residue</td><td> 89.20 </td><td> 9.90 </td><td> 0.65 </td><td> 0.38 </td><td> 0.75 </td><td> 303 </td><td> 904 </td></tr><tr ><td> 6 </td><td> 3 parts by weight of PGO </td><td> 1 part by weight of the first desulfurization residue</td><td> 89.91 </td><td> 9.08 </ Td><td> 0.54 </td><t d> 0.23 </td><td> 0.83 </td><td> 189 </td><td> 400 </td></tr><tr><td> 7 </td><td> 1 Parts by weight HFO </td><td> 1 part by weight of the first desulfurization residue</td><td> 89.72 </td><td> 9.31 </td><td> 0.65 </td><td> 0.36 </td><td> 0.80 </td><td> 354 </td><td> 1020 </td></tr><tr><td> 8 </td><td> 1 part by weight CE </td><td> 84.23 </td><td> 8.99 </td><td> 1.36 </td><td> 6.28 </td><td> 0.78 </td><td> 234 < /td><td> 329 </td></tr><tr><td> 9 </td><td> 1 part by weight of HFO </td><td> 1 part by weight of RFCC </td><td > 90.50 </td><td> 8.41 </td><td> 0.55 </td><td> 0.46 </td><td> 0.90 </td><td> 211 </td><td> 583 </td></tr></TBODY></TABLE>

Table 4         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> Example </td><td> Mp </td><td> Mw/Mn < /td><td> ash</td><td> Ca </td><td> Cp </td><td> Cn </td></tr><tr><td> 1 </td> <td> 2 parts by weight of PFO </td><td> 1 part by weight of the first desulfurized residue</td><td> 371 </td><td> 3.24 </td><td> <0.002 </ Td><td> 47.1 </td><td> 30.5 </td><td> 22.4 </td></tr><tr><td> 2 </td><td> 1 part by weight HFO </ Td><td> 329 </td><td> 3.49 </td><td> <0.001 </td><td> 64.8 </td><td> 18.5 </td><td> 16.7 </td ></tr><tr><td> 3 </td><td> 1 part by weight of PGO </td><td> 1 part by weight of the first desulfurization residue</td><td> 501 </td ><td> 2.35 </td><td> <0.002 </td><td> 40.2 </td><td> 36.2 </td><td> 23.6 </td></tr><tr>< Td> 4 </td><td> 1 part by weight of desulfurized mixed extraction oil</td><td> 285 </td><td> 1.36 </td><td> <0.001 </td><td> 32.5 </td><td> 36.3 </td><td> 31.2 </td></tr><tr><td> Comparative Example </td><td> Mp </td><td> Mw/ Mn </td><td> ash</td><td> Ca </td><td> Cp </td><td> Cn </td></tr><tr><td> 1 </ Td><td> 1 part by weight of the first lubricating base oil</td><td > 269 </td><td> 1.33 </td><td> <0.001 </td><td> 49.4 </td><td> 30.5 </td><td> 20.1 </td></tr ><tr><td> 2 </td><td> 1 part by weight of the second lubricating base oil</td><td> 482 </td><td> 1.50 </td><td> <0.001 </ Td><td> 41.1 </td><td> 33.8 </td><td> 25.1 </td></tr><tr><td> 3 </td><td> 1 part by weight first Sulfur residue oil</td><td> 918 </td><td> 2.54 </td><td> 0.0020 </td><td> 15.0 </td><td> 50.8 </td><td> 34.2 </td></tr><tr><td> 4 </td><td> 2 parts by weight of PGO </td><td> 1 part by weight of the first desulfurization residue</td><td> 361 </td><td> 2.21 </td><td> <0.002 </td><td> 48.8 </td><td> 31.2 </td><td> 20.0 </td></tr> <tr><td> 5 </td><td> 1 part by weight of PFO </td><td> 1 part by weight of the first desulfurization residue</td><td> 508 </td><td> 2.98 </td><td> <0.002 </td><td> 39.1 </td><td> 35.6 </td><td> 25.3 </td></tr><tr><td> 6 </ Td><td> 3 parts by weight of PGO </td><td> 1 part by weight of the first desulfurization residue</td><td> 292 </td><td> 2.12 </td><td> <0.002 </td><td> 53.0 </td><td> 28.8 </td><td> 18.2 </td></tr><tr><td> 7 </td><td> 1 part by weight of HFO </td><td> 1 part by weight Desulfurization Residue</td><td> 624 </td><td> 2.88 </td><td> <0.002 </td><td> 39.9 </td><td> 34.7 </td>< Td> 25.4 </td></tr><tr><td> 8 </td><td> 1 part by weight CE </td><td> 314 </td><td> 1.41 </td>< Td> <0.001 </td><td> 40.8 </td><td> 33.1 </td><td> 26.1 </td></tr><tr><td> 9 </td><td> 1 part by weight of HFO </td><td> 1 part by weight of RFCC </td><td> 222 </td><td> 2.76 </td><td> <0.0035 </td><td> 52.4 </ Td><td> 26.8 </td><td> 20.8 </td></tr></TBODY></TABLE>

Application Example 1 Amorphous carbon material and negative electrode

The precursor composition of Example 1 was heated to 500 ° C at a temperature increase rate of 10 ° C / min, and kept at a constant pressure of 40 atm for 1 hour, and then cooled to room temperature to form a coking product, and coking was produced. The rate is 33%. Next, the coked product was heated to 1000 ° C and kept at a constant temperature for 4 hours to form the amorphous carbon material. The amorphous carbon material was ground by a grinder (manufactured by Retsch; model: RM200), and then classified by a sieve to obtain a ground amorphous carbon material having a D ₅₀ of 20 μm to 32 μm. 9.1 g of the ground amorphous carbon material, 0.5 g of polyvinylidene fluoride (manufactured by Kureha Chemical Industry Co., Ltd., trade name: KF9200), and 0.4 conductive carbon black (purchased from Timcal and sold under the trade name Super P) The mixture is uniformly mixed to form a film-forming component, and 12 g to 15 g of NMP are further uniformly mixed to form a mixed solution. The mixture was applied to a copper foil having a thickness of 14 μm, and dried at 85 ° C for 0.5 hours to remove NMP and moisture to form a negative electrode, wherein the negative electrode included a copper foil and one formed thereon. The conductive film on the copper foil and having a thickness of 20 μm to 22 μm, and the conductive film contains 91% by weight of the ground amorphous carbon material, 5% by weight of polyvinylidene fluoride, and 4% by weight of conductive carbon black.

Application Examples 2 to 15 and Application Example 17 and Comparative Application Examples 1 to 15 were the same procedures as in Application Example 1 to prepare an amorphous carbon material and a negative electrode, in which the source of the precursor composition was changed and the coking procedure was changed. And the temperature, time or pressure of the calcination procedure, changing the D ₅₀ particle size of the amorphous carbon material, and changing the kind and amount of each component in the film-forming component, as shown in Tables 3 to 8.

Application Example 16 was to prepare an amorphous carbon material and a negative electrode in the same manner as in Application Example 1, except that the source of the precursor composition was changed, the temperature, time or pressure of the coking process and the calcination procedure were changed, and the amorphous state was changed. The D ₅₀ particle size of the carbon material is changed, and the type and amount of each component in the film forming component are changed, as shown in Tables 3 to 4, wherein the amorphous carbon material of the application example 16 is a collision plate type pulverizer (label: NPK; Model: LJ-3) was ground, and then classified by a particle size classifier (label: NPK; model: MDS-3) to obtain a ground amorphous carbon material having a D ₅₀ of 12.1 μm.

table 5         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> Application example</td><td> Example </td><td> Amorphous Carbon material</td></tr><tr><td> Coking procedure</td></tr><tr><td> First stage</td><td> Second stage</td>< /tr><tr><td> Temperature (°C) </td><td> Time (hr) </td><td> Pressure (atm) </td><td> Coking yield (%) </ Td><td> Temperature (°C) </td><td> Time (hr) </td><td> Pressure (atm) </td><td> Coking yield (%) </td></ Tr><tr><td> 1 </td><td> 1 </td><td> 500 </td><td> 1 </td><td> 40 </td><td> 33 < /td><td> -- </td><td> -- </td><td> -- </td><td> -- </td></tr><tr><td> 2 </td><td> 2 </td><td> 500 </td><td> 1 </td><td> 40 </td><td> 59 </td><td> -- < /td><td> -- </td><td> -- </td><td> -- </td></tr><tr><td> 3 </td><td> 2 < /td><td> 500 </td><td> 4 </td><td> 40 </td><td> 59 </td><td> -- </td><td> -- < /td><td> -- </td><td> -- </td></tr><tr><td> 4 </td><td> 3 </td><td> 500 </ Td><td> 1 </td><td> 40 </td><td> 18 </td><td> -- </td><td> -- </td><td> -- < /td><td> -- </td></tr><tr><td> 5 </td><td> 2 </td><td> 500 </t d><td> 1 </td><td> 4~8 </td><td> 30 </td><td> -- </td><td> -- </td><td> - - </td><td> -- </td></tr><tr><td> 6 </td><td> 2 </td><td> 500 </td><td> 1 < /td><td> 40 </td><td> 60 </td><td> -- </td><td> -- </td><td> -- </td><td> - - </td></tr><tr><td> 7 </td><td> 2 </td><td> 500 </td><td> 4 </td><td> 40 </ Td><td> 54 </td><td> -- </td><td> -- </td><td> -- </td><td> -- </td></tr> <tr><td> 8 </td><td> 2 </td><td> 550 </td><td> 1 </td><td> 10 </td><td> 76 </td ><td> -- </td><td> -- </td><td> -- </td><td> -- </td></tr><tr><td> 9 </ Td><td> 2 </td><td> 550 </td><td> 1 </td><td> 2 </td><td> 35 </td><td> -- </td ><td> -- </td><td> -- </td><td> -- </td></tr><tr><td> 10 </td><td> 2 </td ><td> 370 </td><td> 4 </td><td> 10 </td><td> -- </td><td> 500 </td><td> 4 </td> <td> 2 </td><td> 43 </td></tr><tr><td> 11 </td><td> 2 </td><td> 370 </td><td> 8 </td><td> 10 </td><td> -- </td><td> 500 </td><td> 4 </td><td> 2 </td><td> 44 </td></tr><tr><td> 12 </td><td> 2 </td><td> 500 </td><td> 2 </td><td> 2 </td ><td> 33 </td>< Td> -- </td><td> -- </td><td> -- </td><td> -- </td></tr><tr><td> 13 </td> <td> 2 </td><td> 500 </td><td> 4 </td><td> 2 </td><td> 33 </td><td> -- </td>< Td> -- </td><td> -- </td><td> -- </td></tr><tr><td> 14 </td><td> 2 </td>< Td> 500 </td><td> 8 </td><td> 2 </td><td> 39 </td><td> -- </td><td> -- </td>< Td> -- </td><td> -- </td></tr><tr><td> 15 </td><td> 2 </td><td> 500 </td><td > 16 </td><td> 2 </td><td> 32 </td><td> -- </td><td> -- </td><td> -- </td>< Td> -- </td></tr><tr><td> 16 </td><td> 2 </td><td> 500 </td><td> 4 </td><td> 2 </td><td> 33 </td><td> -- </td><td> -- </td><td> -- </td><td> -- </td>< /tr><tr><td> 17 </td><td> 4 </td><td> 500 </td><td> 4 </td><td> 40 </td><td> 39 </td><td> -- </td><td> -- </td><td> -- </td><td> -- </td></tr></TBODY></ TABLE>

Table 6         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> Application example</td><td> Amorphous carbon material</td><td> Adhesive (g) </td><td> Coagulant (g) </td><td> Solvent (g) </td></tr><tr><td> Example </td>< Td> Cooling procedure</td><td> Calcination procedure</td><td> Dosage (g) </td><td> Particle size D<sub>50</μ> (μm) </td>< /tr><tr><td> Temperature (°C) </td><td> Time (hr) </td><td> Temperature (°C) </td><td> Time (hr) </td> </tr><tr><td> 1 </td><td> 1 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 20 to 32 </td><td> 0.5 </td><td> 0.4 </td><td> 12 to 15 </td>< /tr><tr><td> 2 </td><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 3 </td><td> 2 </td ><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td>< Td> 0.4 </td></tr><tr><td> 4 </td><td> 3 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 5 </td ><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </ Td></tr><tr><td> 6 </td><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td>< Td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 7 </td><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </ Td><td> 0.4 </td></tr><tr><td> 8 </td><td> 2 </td><td> 35 </td><td> 5 </td>< Td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 9 </td><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </ Td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 10 </td><td> 2 </td><td> 35 </td>< Td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr ><tr><td> 11 </td><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </ Td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 12 </td><td> 2 </td>< Td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 13 </td ><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td>< Td> 0.5 </td><td> 0.4 </td></tr><tr><td> 14 </td><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr ><td> 15 </td><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td>< Td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 16 </td><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 12.1 </td><td> 0.5 </ Td><td> 0.4 </td></tr><tr><td> 17 </td><td> 4 </td><td> 35 </td><td> 5 </td>< Td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 20 to 32 </td><td> 0.5 </td><td> 0.4 </td>< /tr></TBODY></TABLE>

Table 7         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> Comparison Application </td><td> Comparison Example </td><td> Coking Procedure </td></tr><tr><td> The first stage</td><td> The second stage</td></tr><tr><td> Temperature (°C) </td>< Td> time (hr) </td><td> pressure (atm) </td><td> coking yield (%) </td><td> temperature (°C) </td><td> time ( Hr) </td><td> pressure (atm) </td><td> coking yield (%) </td></tr><tr><td> 1 </td><td> 1 < /td><td> 500 </td><td> 1 </td><td> 40 </td><td> 46~54 </td><td> -- </td><td> - - </td><td> -- </td><td> -- </td></tr><tr><td> 2 </td><td> 2 </td><td> 500 </td><td> 1 </td><td> 40 </td><td> 46 </td><td> -- </td><td> -- </td><td> - - </td><td> -- </td></tr><tr><td> 3 </td><td> 3 </td><td> 500 </td><td> 1 < /td><td> 40 </td><td> 29 </td><td> -- </td><td> -- </td><td> -- </td><td> - - </td></tr><tr><td> 4 </td><td> 1 </td><td> 500 </td><td> 4 </td><td> 40 </ Td><td> 49~55 </td><td> -- </td><td> -- </td><td> -- </td><td> -- </td></ Tr><tr><td> 5 </td><td> 3 </td><td> 500 </td><td> 4 </td><td> 40 </td><td> 26 </td><td> -- </td><td> -- </td><td> -- </td><td> -- </td></ Tr><tr><td> 6 </td><td> 3 </td><td> 400 </td><td> 4 </td><td> 40 </td><td> -- </td><td> 500 </td><td> 4 </td><td> 40 </td><td> 34 </td></tr><tr><td> 7 </td ><td> 4 </td><td> 500 </td><td> 1 </td><td> 40 </td><td> 18~21 </td><td> -- </ Td><td> -- </td><td> -- </td><td> -- </td></tr><tr><td> 8 </td><td> 5 </ Td><td> 500 </td><td> 1 </td><td> 40 </td><td> 46 </td><td> -- </td><td> -- </ Td><td> -- </td><td> -- </td></tr><tr><td> 9 </td><td> 6 </td><td> 500 </td ><td> 1 </td><td> 40 </td><td> 41 </td><td> -- </td><td> -- </td><td> -- </ Td><td> -- </td></tr><tr><td> 10 </td><td> 3 </td><td> 500 </td><td> 1 </td> <td> 4~8 </td><td> 14 </td><td> -- </td><td> -- </td><td> -- </td><td> -- </td></tr><tr><td> 11 </td><td> 3 </td><td> 600 </td><td> 1 </td><td> 4~8 < /td><td> 19 </td><td> -- </td><td> -- </td><td> -- </td><td> -- </td></tr ><tr><td> 12 </td><td> 7 </td><td> 500 </td><td> 1 </td><td> 40 </td><td> 39 </ Td><td> -- </td>< Td> -- </td><td> -- </td><td> -- </td></tr><tr><td> 13 </td><td> 7 </td>< Td> 500 </td><td> 1 </td><td> 40 </td><td> 49 </td><td> -- </td><td> -- </td>< Td> -- </td><td> -- </td></tr><tr><td> 14 </td><td> 8 </td><td> 500 </td><td > 4 </td><td> 40 </td><td> 55 </td><td> -- </td><td> -- </td><td> -- </td>< Td> -- </td></tr><tr><td> 15 </td><td> 9 </td><td> 500 </td><td> 1 </td><td> 10 </td><td> 48 </td><td> -- </td><td> -- </td><td> -- </td><td> -- </td>< /tr></TBODY></TABLE>

Table 8         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> Comparative Application </td><td> Amorphous Carbon Material</td><td > Adhesive (g) </td><td> Coagulant (g) </td><td> Solvent (g) </td></tr><tr><td> Comparative Example</td> <td> Cooling Procedure</td><td> Calcination Procedure</td><td> Dosage (g) </td><td> Particle Size D<sub>50</μ> (μm) </td> </tr><tr><td> Temperature (°C) </td><td> Time (hr) </td><td> Temperature (°C) </td><td> Time (hr) </td ></tr><tr><td> 1 </td><td> 1 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td > 4 </td><td> 9.1 </td><td> 20 to 32 </td><td> 0.5 </td><td> 0.4 </td><td> 12 to 15 </td> </tr><tr><td> 2 </td><td> 2 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 3 </td><td> 3 </ Td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td> <td> 0.4 </td></tr><tr><td> 4 </td><td> 1 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 5 </ Td><td> 3 </td> <td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td > 0.4 </td></tr><tr><td> 6 </td><td> 3 </td><td> 35 </td><td> 5 </td><td> 1000 < /td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 7 </td> <td> 4 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td > 0.5 </td><td> 0.4 </td></tr><tr><td> 8 </td><td> 5 </td><td> 35 </td><td> 5 < /td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr> <td> 9 </td><td> 6 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td > 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 10 </td><td> 3 </td><td> 35 < /td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td ></tr><tr><td> 11 </td><td> 3 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td > 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 12 </td><td> 7 < /td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td ><td> 0.4 </td></tr><tr><td> 13 </td><td> 7 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 < /td><td> 0.5 </td><td> 0.4 </td></tr><tr><td> 14 </td><td> 8 </td><td> 35 </td> <td> 5 </td><td> 1000 </td><td> 4 </td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></ Tr><tr><td> 15 </td><td> 9 </td><td> 35 </td><td> 5 </td><td> 1000 </td><td> 4 < /td><td> 9.1 </td><td> 0.5 </td><td> 0.4 </td></tr></TBODY></TABLE>

Coking yield: [weight of coked product / weight of precursor composition] × 100%.

Amorphous carbon material particle size analysis: The amorphous carbon materials of Application Examples 1 to 17 and Comparative Application Examples 1 to 15 were analyzed by a laser particle size analyzer (label: Beckman; model: LS13320).

The first ring is charged into the capacity, the first ring discharge capacity and the irreversible percentage analysis: for convenience of description, the analysis is described by using the application example 1, and the remaining application examples and comparative application examples are assembled in the same manner. And measurement. A lithium metal foil as a positive electrode, a negative electrode of an application example 1, an electrolyte, and a separator (label: Celgard; material: polypropylene and polyethylene) are assembled into a CR2032 button type half-cell, wherein the electrolyte contains 99 wt% of a 1 M LiPF ₆ solution and 1 wt% of vinylene carbonate. The LiPF ₆ solution contains LiPF ₆ , EC, EMC, and DMC, wherein the volume ratio of EC:EMC:DMC is 1:1:1. The CR2032 button type half-cell is measured by a charge and discharge machine (label: ARBIN; model: BT2043) at room temperature (25 ° C), and the measurement condition is that 0.1 C is charged to 0 V in CC/CV mode; The cut-off current is 0.01C; in CC mode, 0.1C is discharged to 1.8V. The irreversible percentage is [(first ring charging capacity - first ring discharging capacity) / first ring charging capacity] x 100%.

Table 9         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> Application </td><td> Example </td><td> First lap Release capacity (mAh/g) </td><td> irreversible percentage (%) </td><td> Comparison application example</td><td> Comparison example</td><td> Release of the first circle Capacitance (mAh/g) </td><td> irreversible percentage (%) </td></tr><tr><td> 1 </td><td> 1 </td><td> 291 </td><td> 27.9 </td><td> 1 </td><td> 1 </td><td> 344 </td><td> 39.4 </td></tr><tr ><td> 2 </td><td> 2 </td><td> 242 </td><td> 26.5 </td><td> 2 </td><td> 2 </td>< Td> 320 </td><td> 40.6 </td></tr><tr><td> 3 </td><td> 2 </td><td> 265 </td><td> 25.7 </td><td> 3 </td><td> 3 </td><td> 317 </td><td> 30.3 </td></tr><tr><td> 4 </td ><td> 3 </td><td> 266 </td><td> 29.1 </td><td> 4 </td><td> 1 </td><td> 330 </td>< Td> 40.0 </td></tr><tr><td> 5 </td><td> 2 </td><td> 240 </td><td> 22.3 </td><td> 5 </td><td> 3 </td><td> 265 </td><td> 36.5 </td></tr><tr><td> 6 </td><td> 2 </td ><td> 242 </td><td> 26.5 </td><td> 6 </td><td> 3 </td><td> 288 </td><td> 36.7 </td>< /tr><tr>< Td> 7 </td><td> 2 </td><td> 265 </td><td> 25.7 </td><td> 7 </td><td> 4 </td><td> 295 </td><td> 33.4 </td></tr><tr><td> 8 </td><td> 2 </td><td> 273 </td><td> 27.1 </ Td><td> 8 </td><td> 5 </td><td> 285 </td><td> 33.3 </td></tr><tr><td> 9 </td>< Td> 2 </td><td> 272 </td><td> 27.4 </td><td> 9 </td><td> 6 </td><td> 273 </td><td> 32.1 </td></tr><tr><td> 10 </td><td> 2 </td><td> 288 </td><td> 26.6 </td><td> 10 </ Td><td> 3 </td><td> 295 </td><td> 33.3 </td></tr><tr><td> 11 </td><td> 2 </td>< Td> 279 </td><td> 26.4 </td><td> 11 </td><td> 3 </td><td> 302 </td><td> 38.9 </td></tr ><tr><td> 12 </td><td> 2 </td><td> 251 </td><td> 28.3 </td><td> 12 </td><td> 7 </ Td><td> 266 </td><td> 30.2 </td></tr><tr><td> 13 </td><td> 2 </td><td> 284 </td>< Td> 27.3 </td><td> 13 </td><td> 7 </td><td> 266 </td><td> 30.2 </td></tr><tr><td> 14 </td><td> 2 </td><td> 282 </td><td> 26.8 </td><td> 14 </td><td> 8 </td><td> 282 </ Td><td> 40.4 </td></tr><tr><td> 15 </td><td> 2 </td><td> 267 </td><td> 28.1 </td>< Td> 15 </td><td> 9 </td><td> 265 </td><td> 36.5 </td></tr><tr><td> 16 </td><td> 2 </td><td> 279 </ Td><td> 21.5 </td><td> </td><td> </td><td> </td><td> </td></tr><tr><td> 17 < /td><td> 4 </td><td> 283 </td><td> 29.3 </td><td> </td><td> </td><td> </td><td > </td></tr></TBODY></TABLE>

Referring to Table 9, the first loop discharge capacity of Application Examples 1 to 17 ranges from 240 mAh/g to 291 mAh/g, and the irreversible percentage ranges from 21.5% to 29.1%, while the first loop of the application examples 1 to 15 is discharged. The capacity ranges from 265 mAh/g to 344 mAh/g, and the irreversible percentage ranges from 30.0% to 40.6%.

In summary, the present invention adjusts the carbon content, the hydrogen element content, the nitrogen element content, the sulfur element content, the ratio of the number of carbon atoms to the number of hydrogen atoms, the weight average molecular weight, the molecular weight distribution index, the ash content, and the aromatic hydrocarbon content. The saturated alkane content and the naphthenic content can reduce the irreversible percentage of the battery when the amorphous carbon material formed from the precursor composition is applied to a battery as a negative electrode, so that the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the simple equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still Within the scope of the invention patent.

Claims (6)

A precursor composition for forming an amorphous carbon material for a negative electrode, comprising: the carbon element content ranging from 84% by weight to 92.1% by weight, based on the total amount of the precursor composition: 100% by weight, the hydrogen element content range 6wt% to 10.3wt%, the nitrogen element content ranges from 0.59wt% to 2wt%, and the sulfur element content ranges from 0wt% to 6wt%; the precursor composition has a weight average molecular weight ranging from 149 to 900, and the molecular weight The distribution index ranges from 1.33 to 6.87; the precursor composition has an ash content ranging from 0 wt% to 0.0478 wt%, based on the total amount of the precursor composition of 100 wt%; and the total amount of the precursor composition is 100 wt%, The aromatic hydrocarbon content ranges from 15 wt% to 82 wt%, the saturated alkane content ranges from 12 wt% to 51 wt%, and the naphthenic content ranges from 6 wt% to 34 wt%. The precursor composition according to claim 1, wherein the carbon element content ranges from 84% by weight to 92% by weight and the nitrogen element content ranges from 0.59% by weight to 1% by weight; the precursor composition has an ash content ranging from 0.001% by weight. To 0.0478 wt%. The precursor composition according to claim 1, wherein the carbon element content ranges from 91.0 wt% to 92.1 wt%, the hydrogen element content ranges from 7.1 wt% to 7.5 wt%, and the nitrogen element content ranges from 0.62 wt%. To 1.16 wt%, and the sulfur element content ranges from 0.045 wt% to 0.11 wt%; the weight average molecular weight ranges from 541 to 900, and the molecular weight distribution index ranges from 3.49 to 4.22; the precursor composition has an ash content ranging from 0 wt. % to 0.001 wt%; the aromatic hydrocarbon content ranges from 64.8 wt% to 76.2 wt%, the saturated alkane content ranges from 12.4 wt% to 18.5 wt%, and the naphthenic content ranges from 11.4 wt% to 20.1 wt%. An amorphous carbon material formed by performing a treatment using the precursor composition according to any one of claims 1 to 3, wherein the treatment comprises a coking process and a calcination process. The amorphous carbon material according to claim 4, wherein the coking process comprises a heating step and a cooling step, the heating step has an operating temperature range of 400 ° C to 600 ° C, and the heating step has an operating time range of 1 Hours to 16 hours. The amorphous carbon material according to claim 5, wherein the heating step has an operating temperature ranging from 500 ° C to 550 ° C, and the heating step has an operating time ranging from 4 hours to 8 hours.