LU502148B1

LU502148B1 - Co( OH)2 activated carbon composite electrode material based on electrodeposition technology and preparation method thereof

Info

Publication number: LU502148B1
Application number: LU502148A
Authority: LU
Inventors: Ke Liu
Original assignee: Univ Hubei Arts & Science
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-11-24

Abstract

This invention belongs to the field of electrodes composed of or including active materials, and discloses Co( OH)2 activated carbon composite electrode material based on electrodeposition technology and preparation method thereof, and an X-ray photoelectron spectroscopy analysis of the Co(OH)2 activated carbon composite electrode material is carried out by using an electrosorption performance test and analysis method; metal oxide was introduced into the electrode surface, and the electro-adsorption of Co(OH)2 activated carbon electrode material was tested by impregnation calcination method. The area enclosed by the volt-ampere curve is calculated by integration, and the electrodeposition amount of Co(OH)2 activated carbon composite electrode material is obtained. The number of activated carbon ion-exchange fibers of Co(OH)2 activated carbon composite electrode material was calculated by conductivity measurement, and the electrodeposition preparation of Co(OH)2 activated carbon composite electrode material was realized according to the combination of various elements.

Description

Description LU502148 Co O-DZ activated carbon composite electrodes material based on electrodeposition technology and preparation method thereof Technical field The present invention belongs io the technical field of electrodes composed of or including active materials, particularly relates to Co! OH2 activated carbon composite glectrode material based on elecirodenosition technology and preparation method thereof Background At present, the prior art commonly used in the industry is as follows: Co(OFD2 activated carbon composite electrode material is a typical battery siectrode material The performance of Co{OHE activated carbon composite electrodes material is ensured to be stable by optimizing the preparation technology of Co{OH)2 activated carbon composite electrode material. Siudying the optimization preparation technology of Co(0OH2 activated carbon composite electrode material will have a good application value in battery design technology optimization and electrode performance optimization control The research on the preparation methods of CofDH)2 activated carbon composite slectrode materials mainly includes siectro-adsorption desalination technology, A-Tay phiotosiectron speciroscopy (XPS) preparation technology and new hybrid MMO preparation technology.

Li Tingling et ai provided a preparation method and electrochemical performance test method of ColOHY activated carbon composite electrode material based on alectro-modulation on AZO3/ACF composite electrode when studying the effect of ionic liquid modified by group [EMIMIQACI on gcelonilrile-watgr-vapor-liquid equilibrium based on COSMO-RS model The slechro-adsorption deionization experiment was carried oul In combination with electromagnetic coupling control method to improve the stable electromagnstic coupling output performance of Co{OH)2 activated carbon composite electrode material, However, this method carried out eleciromagnetit)s502148 coupling output performance of Co{OH)2 activated carbon composite electrode material Liu Zhuang et al. provided a preparation and performance test method of Go{(0H2 activated carbon composite electrode material based on voltage self-balancing Boost-MMDCT coupling control in the research progress of environment-responsive intelligent hydrogel with fast response characteristics, After rectification, I was connected to the Co(OH)2 activated carbon composite electrode through MMDCT to improve the stability of the electrode material, but the process control ability of this meihod was not strong.

To sum up, the existing problems in the prior art are: regardiess that the preparation method based on AIZOFACF composite electrode is poor in electro-adsorption delonization, or the preparation process control ability of the prior art based on voltage self-balancing is weak, the actual problem of the reaction is that the eclecirochemical stability of the prepared slectrods material is poor. in the experiments! process, the specific surface area of the Co(0OH32 activaled carbon composite electrode material decrsases and the conductivity of the slectrode decreases.

The preparation method based on ALÜJACF composite electrode has poor dejonization by eleciro-adsorption, The control ability of that prior art preparation process based on voltage self-balancing is not strong.

The difficulty of solving the above technical problems is fo prepare siectroce materials with good conductivity, large specific surface area and stable electrochemical performance. The main disadvantage of Co{OH)2 as an siectrode material is that it has poor electrical conductivity, and its volume changes greatly during the charging/discharging process, which leads to poor rate performance and cycle stability. Therefore, activated carbon is introduced as the substrais for sisctrochemical deposition of Co(OH to improve ils electrical conductivity, And through impregnation and calcination, thal activate carbon with larger specific surface area generale convenient lon transmission channels, thus reducing the ion diffusion distance and improving the dispersion degree of slectrochemically deposite Co(OH)2, The conductivity and stability are increased under the condition of having a large comparative area. The significandd)502148 of solving the above technical problems. Co(OH)2 electrode material with good performance plays an important role in the research of supercapacitors and promotes the development of supercapacitors, new energy vehicles and asrospace fields.

Summary Aiming at the problems existing in the prior art, the invention provides Col O2 activated carbon composite electrode malerial based on slectrodeposition technology and preparation method thereof The invention is realized in this way, a preparation method of CofOFD2 activated carbon composite electrode material based on siectrodeposition technology specifically includes: Step 1, carrying out X-ray photoelectron spectrum analysis of the Co(OH)2 activated carbon composite electrode material by adopting an electro-adsorption performance test and analysis method; Step 2, introducing metal oxide into the surface of the electrode, testing the electro-adsorption property of Co(OH)2 activated carbon electrode material by impregnation calcination method, and analyzing the cyclic voltammetry performance of the electrode; Step 3, the area enclosed by the volt-ampere curve is integrated to obtain the electrodeposition amount of the Co(OH)2 activated carbon composite electrode material; Step 4, calculating the number of activated carbon ion exchange fibers of the Co(OH)2 activated carbon composite electrode material measured by conductivity, and realizing the electrodeposition preparation of the Co(OH)2 activated carbon composite electrode material according to the combination of various elements.

Further, the electric adsorption performance test and analysis method specifically comprises the following steps: the metal oxide is introduced into the electrode surface, and the disturbance error in the preparation of Co(OH)2 activated carbon composite electrode material is expressed in the form of multiple inputs and single outputs, the electrochemical regulation error term E of Co(OH)2 activated carbon composite electrode)502148 material satisfies Gauss-Markov hypothesis by using single-point fuzzification, and the nonlinear dynamic control driving matrix for the preparation of Co(OH)2 activated carbon composite electrode material is as follows: Y=XB+e; wherein, Y is the conduction vector of nx1 activated carbon fibers adhering to graphite, X is the nonlinear function vector matrix of nxm electrolyte, B is the mx1 activated carbon fiber parameter vector, and e is nx1 random error vector.

Further, in step 2, the electrosorption test of Co(OH)2 activated carbon electrode material by impregnation calcination method specifically includes: the metal oxide is introduced into the surface of the electrode, and the cyclic voltammetry curve is analyzed by the immersion calcination method. If < m, the approximate accuracy 2 of the X-ray test of the composite electrode material is expressed as: the linear error prediction of the electrode material is carried out in the NaCl solution with the electrolyte of 0.5mol-L*, the prediction error function is Z1=diag(di), i=1,2,....r, a three-electrode system is used for steady-state regulation, and the covariance matrix decomposition method is used to decompose U and V into what shown as below: U=[U1 U2] Ve[IVT V2} Both U1 and ¥1 are r columns.

Further, in step Z, In step 2, the cyclic voltammetry performance analysis methods of electrodes include: (1) The output volt-ampere characteristic curve prepared by the Co(OH)2 activated carbon composite electrode material was constructed, and the three-phase steady-state regulation model of the battery anode was established, and the electrode torque was calculated as:

° Fee & ; i OMr {pi +295 +1 + ST - Æ WAAL LP A) Ka ve ss ; X. wherein, a is the instantaneous span of the state vector, and the output stability analysis of the Co(OH)2 activated carbon composite electrode material is carried out.

The output . a Nm . . of the oxide fuel cell anode satisfies J; ; pla)=1_ andthe adjustment step size of the adaptive backstepping tracking is: «— min B,kc) [ks+ (1-ks) tanh (8 B-ke |) ] ; wherein, ks<1, © is the empirical value; (2) Calculate the stretching factors of the process adaptation law of the preparation of Co(OH) 2 activated carbon composite electrode materials, Lip , Lis and Lim , the state variables Cp and Cs of the process control, and control the volt-ampere characteristics according to the frequency adjustment criterion, in order to obtain the operating frequency of the system: | { N - i x de M.

Ua CG, SS S A © 3 ga" La 3 i 1» i st ; ap, 0000000 on {} ID & x am let Y1, Y2, ..., YN be a set of samples of Y, and the output voltammetric characteristic coefficient prepared by the Co(OH)2 activated carbon composite electrode material is set to be expressed as: ER 8 + ; + ; + 5H x + > à — {es £8,

Further, in step 3, integrate the area enclosed by the voltammetry curve to obtain the)502148 electrodeposition amount of the Co(OH)2 activated carbon composite electrode material, which includes: integrate the area enclosed by the volt-ampere curve to obtain the control torque of electrodeposition as: Tot=Tem- (PwtPeYax based on the electrodeposition technology, the error compensation is carried out, and the feedback tracking adjustment method is used to obtain the fuzzy parameter distribution of the Co(OH)2 activated carbon electrode material preparation, and the electrodeposition amount of the Co(OH)2 activated carbon composite electrode material is obtained.

Further, in step 4, in step 4, the calculated electrical conductivity measures the number of activated carbon ion-exchange fibers of the Co(OH)2 activated carbon composite electrode material, and realizes the electrodeposition preparation of the Co(OH)2 activated carbon composite electrode material according to the combination of elements, which specifically includes: 1) the load performance and output voltammetry characteristics of the prepared Co(OH)2 activated carbon composite electrode material were quantitatively analyzed, and the optimal control objective function of electrodeposition preparation was obtained as follows: LEX sw, BOX He FAX + m CLK) SAO TT) + Lem fol be A3, JE 0 € is a small constant to control the output current and voltage of the Co(OH)2 activated carbon composite electrode material. Gm) and a tm represent the output power gain and time delay of the Co(OH)2 activated carbon composite electrode material, the measurement error fu(x) is defined as: o is a large constant;

2) Through the control design of the preparation process of the composite electrod&J502148 material, assuming x(t), t=0,1,...,n-1 is the sampling training sequence of the control system, the error feedback compensation control output state equation is obtained: { EN dF Nw enw ve PQ pee aay, 2x ga N | ee wg FR eat 8 Fw | Rs mal 232, 00 . in the above formula, w is the inertia weight of the output delay adjustment of the Co(OH)2 activated carbon composite electrode material, c1 and c2 are the acceleration constants, and the convergence state characteristic quantity of the preparation process control is obtained: | uy Ya EV fi . > Vere a a | LY we EVE x min YH XG Bw nun) PT LT : A ous Yo 7 Fein Yin 8; “run YU+G-XE-DR Another purpose of the invention is to provide battery prepared by using the Co(OH}2 activated carbon composite electrode material based on electrodeposition technology.

Another purpose of the invention is to provide green and environmentally friendly motor vehicles squipped with the battery.

To sum up, this invention provides the beneficial effects as followings: The preparation method of the Co{OH)Z activated carbon composite electrode material based on the electrodeposition technology provided by the invention can sfisctively realize the preparation of the Co{OH)2 activated carbon composite electrode material, and the control performance of preparing the Co(0OH32 activaled carbon composite electrode material is better, and the desalling efficiency of the electrode material is higher. The invention realizes the optimization design of the Co(OH)2502148 activatad carbon composite electrode material by constructing an electrochemical regulation target model of the Co{OH)2 activated carbon composite electrode material, The fuzzy parameter distribution of Co{OHY aclivated carbon siectrode material preparation was obtained by feedback tracking adjustment method, and the siectrodeposition amount of Co{OH)2 activaled carbon composite electrode material was obtained, 50 as to optimize the Dreparation process.

The invention can control the stability of electrochemical regulation and process in the preparation of the Co(OH)2 activated carbon composite electrode material, so as to improve the stability of the preparation process; the X-ray photoelectron spectroscopy analysis can introduce metal oxides into the electrode surface to improve the preparation efficiency.

Brief Description Of The Figures Fig. 1 is a flow chart of the preparation method of Co(OH)2 activated carbon composite electrode material based on electrodeposition technology provided by the embodiment of the present invention.

Fig. 2 is a SEM picture of composite electrode materials with different diffraction peak spectra provided by the embodiment of the present invention.

Fig. 3 is a schematic diagram of cyclic voltammetry performance of Co(OH)2 activated carbon composite electrode provided by the embodiment of the present invention.

Description of the present invention In order to make the purpose, technical scheme and advantages of the present invention more clear, the present invention will be further explained in detail with examples below. It should be understood that the specific embodiments described here are only for explaining the present invention, but not for limiting the present invention.

Due to the problems that the preparation method based on Al2O3/ACF composite electrode has poor deionization by electro-adsorption, and that the control ability of the prior art preparation process based on voltage self-balancing is weak, this inventidru502148 provides the technical solution that described as followings: As Figure 1 shown, this invention provides the preparation method of Co(OH)2 activated carbon composite electrode material based on electrodeposition technology is characterized in comprising the following steps: S101, carrying out X-ray photoelectron spectrum analysis of the Co(OH)2 activated carbon composite electrode material by adopting an electro-adsorption performance test and analysis method; S102, introducing metal oxide into the surface of the electrode, testing the electro-adsorption property of Co(OH)2 activated carbon electrode material by impregnation calcination method, and analyzing the cyclic voltammetry performance of the electrode; S103, the area enclosed by the volt-ampere curve is integrated to obtain the electrodeposition amount of the Co(OH)2 activated carbon composite electrode material; S104, calculating the number of activated carbon ion exchange fibers of the Co(OH)2 activated carbon composite electrode material measured by conductivity, and realizing the electrodeposition preparation of the Co(OH)2 activated carbon composite electrode material according to the combination of various elements.

In S101, the electric adsorption performance test and analysis method specifically comprises the following steps: the metal oxide is introduced into the electrode surface, and the disturbance error in the preparation of Co(OH)2 activated carbon composite electrode material is expressed in the form of multiple inputs and single outputs, the electrochemical regulation error term E of Co(OH)2 activated carbon composite electrode material satisfies Gauss-Markov hypothesis by using single-point fuzzification, and the nonlinear dynamic control driving matrix for the preparation of Co(OH)2 activated carbon composite electrode material is as follows: Y=XB+e; wherein, Y is the conduction vector of nx1 activated carbon fibers adhering to graphite, X is the nonlinear function vector matrix of nxm electrolyte, B is the mx1 activated carbon fiber parameter vector, and e is nx1 random error vector.

In S102, the electrosorption test of Co(OH)2 activated carbon electrode material by)502148 impregnation calcination method specifically includes: the metal oxide is introduced into the surface of the electrode, and the cyclic voltammetry curve is analyzed by the immersion calcination method. If < m, the approximate accuracy 2 of the X-ray test of the composite electrode material is expressed as: Loe the linear error prediction of the electrode material is carried out in the NaCl solution with the electrolyte of 0.5mol-L*, the prediction error function is Z1=diag(di), i=1,2,....r, a three-electrode system is used for steady-state regulation, and the covariance matrix decomposition method is used to decompose U and V into what shown as below: L=i111 LZ], V=V1 V2} both UT and V1 are r columns.

in $102, the cyclic voltammetry performance analysis methods of electrodes include: (1) The output volt-ampere characteristic curve prepared by the Co(OH)2 activated carbon composite electrode material was constructed, and the three-phase steady-state regulation model of the battery anode was established, and the electrode torque was calculated as: , OUR 3 wherein, a is the instantaneous span of the state vector, and the output stability analysis of the Co(OH)2 activated carbon composite electrode material is carried out. The output of the oxide fuel cell anode satisfies >" pla; }=1 and the adjustment step size of the adaptive backstepping tracking is: @=min (8, ke) [ks+ (1-ks) tanh (8 Bk. |) ] ; wherein, ks<1, © is the empirical value; (2) Calculate the stretching factors of the process adaptation law of the preparation of Co(OH) 2 activated carbon composite electrode materials, Lip , Lis and Lim , the state variables Cp and Cs of the process control, and control the LU502148 volt-ampere characteristics according to the frequency adjustment criterion, in order to obtain the operating frequency of the system: HE slop ww nn Coed, à Let Y1, Y2, ..., YN be a set of samples of Y, and the output voltammetric characteristic coefficient prepared by the Co(OH)2 activated carbon composite electrode material is set to be expressed as: ah ALE BEI Cr M IV. inf)

EVE ce, In S103, integrate the area enclosed by the voltammetry curve to obtain the electrodeposition amount of the Co(OH)2 activated carbon composite electrode material, which includes:integrate the area enclosed by the volt-ampere curve to obtain the control torque of electrodeposition as: Tou=—Ten(PwtPb/or based on the electrodeposition technology, the error compensation is carried out, and the feedback tracking adjustment method is used to obtain the fuzzy parameter distribution of the Co(OH)2 activated carbon electrode material preparation, and the electrodeposition amount of the Co(OH)2 activated carbon composite electrode material is obtained.

In S104, the calculated electrical conductivity measures the number of activated carbon ion-exchange fibers of the Co(OH)2 activated carbon composite electrode material, and realizes the electrodeposition preparation of the Co(OH)2 activated carbon composite electrode material according to the combination of elements, which specifically includes: (1) the load performance and output voltammetry characteristics of the prepared Co(OH)2 activated carbon composite electrode material were quantitatively analyzed, and the optimal control objective function of electrodeposition preparation wa$)502148 obtained as follows: LO AO Pe F003 COX) ; , ee DES & } 4 Os fal a KR SR ST € is a small constant to control the output current and voltage of the Co(OH)2 activated carbon composite electrode material.

Gms) and e”'ns represent the output power gain and time delay of the Co(OH)2 activated carbon composite electrode material, the measurement error fu(x) is defined as: egy A . . Phe ; wherein O is a large constant;

(2) Through the control design of the preparation process of the composite electrode material, assuming x(t), t=0,1,...,n-1 is the sampling training sequence of the control system, the error feedback compensation control output state equation is obtained:

{ or dF xs qe no FU PIV een sn, se Ve (PIS RUS i = su ct = X Si 8% ans AA $ br

\ of $ - =

| hu med LI 06 | in the above formula, w is the inertia weight of the output delay adjustment of the Co(OH)2 activated carbon composite electrode material, c1 and c2 are the acceleration constants, and the convergence state characteristic quantity of the preparation process control is obtained:

arm we ei LU502148 à Ua Ya DVB i co esas + ON EAT = X 1 a Ya > Es Vas fi . mini YE ACOB = mime ; | . Uo Yow > Es Yo B | som VE +1 Xe Uf The application principle of the present invention will be further described with reference to specific examples below. Embodiment:

1. In the present invention, parameter optimization control and constraint parameter analysis for the preparation of composite electrode materials include: (1) Parameter optimization control for the preparation of composite electrode materials In order to realize the electrochemical regulation and process stability control in the preparation of Co(OH)2 activated carbon composite electrode material, the load balance control model of Co(OH)2 activated carbon composite electrode material was firstly constructed, and the quality of the electrode was evaluated by the control parametric analysis method. The specific capacitance test, the independent variable analysis of the dependent variable in the preparation of Co(OH)2 activated carbon composite electrode material is carried out through the orthogonal design experiment, the n groups of observations are obtained as: (<i1,x2,*xim-1,ÿ)1=1,2,"n (1) Calculate the conductivity test vector set of activated carbon fibers to satisfy: {x 3 (1 X Baa H Ba 3 fe ; da ; | ES Net A | © LT 1110 (2) N Fr 3 | : Xia "> Lynd J Bs ; N £, }

The metal oxide is introduced into the electrode surface, and the disturbance error irtvu502148 the preparation of Co(OH)2 activated carbon composite electrode material is expressed in the form of multiple inputs and single outputs, the electrochemical regulation error term E of Co(OH)2 activated carbon composite electrode material satisfies Gauss-Markov hypothesis by using single-point fuzzification, and the nonlinear dynamic control driving matrix for the preparation of Co(OH)2 activated carbon composite electrode material is as follows: Y=XB+e (3).

Wherein, Y is the conduction vector of nx1 activated carbon fibers adhering to graphite, X is the nonlinear function vector matrix of nxm electrolyte, B is the mx1 activated carbon fiber parameter vector, and e is nx1 random error vector. The metal oxide is introduced into the surface of the electrode, and the cyclic voltammetry curve is analyzed by the immersion calcination method. If < m, the approximate accuracy 2 of the X-ray test of the composite electrode material is expressed as: Tole 8 L * (4) The linear error prediction of the electrode material is carried out in the NaCl solution with the electrolyte of 0.5mol-L"*, the prediction error function is Z1=diag(d;), i=1,2,...,r, a three-electrode system is used for steady-state regulation, and the covariance matrix decomposition method is used to decompose U and V into what shown as below: U=[UT LE] VeVTWV2] (5) Wherein, both Ut and V3 are r columns.

Using the transmission principle of electrochemical work, the system conduction model of the parameter optimization control of the composite electrode material preparation satisfies: min fy = XP] = min fUTY - XV] PR uy à

In the above formula, C has nothing to do with 3, and the change of ions is measured by the conductivity, and the steady-state control of the preparation of the composite electrode material is carried out, and the stability of the preparation process is improved.

(2) Analysis of the control constraint parameters of the preparation process Apply a voltage of 1.6V to the device, and use a flowmeter to control the electrochemical output characteristic quantity in the preparation of the Co(OH)2 activated carbon composite electrode material. Under the action of the sensor, considering the transmission characteristic quantity of the electrosorption module, the Co(OH) 2 The control and constraint parameters for the preparation of activated carbon composite electrode materials are nonlinearly decomposed, namely: min {¥ = XBf = min UY-E VB (7) The least squares solution for the electrochemical regulation of the Co(OH)2 activated carbon composite electrode material was obtained by the least squares fitting method as follows: = Vz "uy (8) Wherein, ui {i} and 0 are the characteristic quantities of the activated carbon fibers prepared by the Co(DH)2 activated carbon composite electrode material after loading Al>Oa, respectively, The slow-varying function is constructed, and the outgut conduction model of the initial conductivity is: Use 1 pair of activated carbon fiber electrodes for steady-state adjustment, combined with the adaptive beamforming method, the conductivity of the solution was measured, and the optimized parameter control output obtained under the limited initial state was: M: Mo v(t, 0) =» a (OH =} x (Held) (10) ard mise}

In the formula, "“" represents the complex conjugate operator, and the change of ionsJ502148 is measured by the conductivity, and the conduction equation controlled by the flowmeter is expressed as: fore van M 1 Xe 10 min (Yi) - Xp] = nun EEE EER) | ve | _ Xo _ | To establish the DC voltage and power transmission, perform singular value decomposition on the DC bipolar short-circuit characteristic distribution matrix Xij: Xi=UiZ Vi (12) Since the shunt reactors are scattered in the line, there is no obvious impact, so the tracking error integral term is added to the rear end, which are respectively recorded as > ij, U"ÿ, U"), V"ij and V"ij , the object parameters of the unlocked output of the converter prepared by the Co(OH)2 activated carbon composite electrode material are: uty, YüshD= 7°; | DE (13) A Yoo i

ESR X(i+h= 727 oo | (14) | Eco Voir Through the above analysis, the small resistance characteristics of Co(OH)2 activated carbon composite electrode materials are solved, and the expression is: min fY (i) ~ XO)pi= min Y(i + 1} — Xi + Dp] (15)

Ir Y, UE, i LU502148 ] Yor ; i Unidos Wa Denote U(i)=diag(Uij) , j=1 ‚2 ,... ,p(i) , the stability matrix U(i) of the preparation process control is still an orthogonal matrix, the X-ray photoelectron spectroscopy analysis of the Co(OH)2 activated carbon composite electrode material was carried out by using the electrosorption performance test and analysis method, and metal oxides were introduced into the electrode surface to improve the preparation efficiency.

2. The process control optimization of electrode material preparation includes: (1) Analysis of the cyclic voltammetry performance of the electrode: The preparation control of the Co(OH)2 activated carbon composite electrode material is based on the analysis of the control object and constraint parameters, combined with the fuzzy control strategy, the optimal design of the control law is carried out, and the output of the preparation of the Co(OH)2 activated carbon composite electrode material is constructed. volt-ampere characteristic curve, the three-phase steady-state regulation model of the battery anode is established, and the electrode torque is calculated as: Ab BELL (Qe +, LY I, = (17) ord A ha Iiaf By F, a L, i by = bo IIS (18)

0.905 (Bp, +I NI +1 bog me TTT { Ä k. (19) Wherein, a is the instantaneous span of the state vector, and the output stability analysis of the Co(OH)2 activated carbon composite electrode material is carried out.

When the output of the oxide fuel cell anode satisfies >" »{&1=1, the adjustment stdg/502148 size of the adaptive backstepping tracking is: d=min(P, ke) [est Ok: tanh © [B-ke[) ] (20) Among them, ks<1, à is the empirical value. Then, the stretching factors Lip, Lis and Lm of the process adaptation law for the preparation of Co(OH)2 activated carbon composite electrode materials are calculated, the state variables Cp and Cs of the process control, the volt-ampere characteristics are controlled according to the frequency regulation criterion, and the operating frequency of the system is obtained: i . . } lL, em Gp CL 55 ee (21) “ec, owl, be rd, — LL =0= = M (22) RE æC, Coal ‘ Let Y1, Y2, ..., Ynbe a set of samples of Y, and the output voltammetry characteristic coefficient prepared by the Co(OH)2 activated carbon composite electrode material is set to be expressed as: mk kkk BLE QU A, " TL TS | i A (23)

PAR (A ad The electrosorption test of Co(OH)2 activated carbon electrode material was realized by the impregnation calcination method, the cyclic voltammetry performance of the electrode was analyzed, and the area enclosed by the voltammetry curve was integrated and calculated, and the control torque of electrodeposition was obtained as follows: Tot = Tax“ (PtP) #0 Tr (24)

At this time, based on the electrodeposition technology for error compensation, theJ502148 feedback tracking adjustment method is used to obtain the fuzzy parameter distribution of the Co(OH)2 activated carbon electrode material preparation, and the electrodeposition amount of the Co(OH)2 activated carbon composite electrode material is obtained, and the preparation is carried out. Optimal control of the process.

(2) Optimal control of electrodeposition preparation of Co(OH)2 activated carbon composite electrode materials: The load performance and output voltammetry characteristics of the prepared Co(OH)2 activated carbon composite electrode material were quantitatively analyzed, and the optimal control objective function of electrodeposition preparation was defined as: AO) = w, BOX, (0 + w, CO SAA TT (25) la fey [0B [BE 1] Wherein, € is a small constant, which is used to control the output current and voltage of the Co(OH)2 activated carbon composite electrode material. Gm(s) and ¢ represent the output power gain and time of the Co(OH)2 activated carbon composite electrode material. hysteresis, the measurement error fu(x) is defined as: LA) = (26) l+e * wherein 0 is a large constant. Through the control design of the preparation process of the composite electrode material, assuming x(t), t=0, 1, ---, n-1 is the sampling training sequence of the control system, the error feedback compensation control output state equation is obtained: | € Ln = Qu RE, FA mE, Fr gE, -FI+1, jm . m, SMU IECRUSE FERS) (27) | se = AW ad FF dn wf A = max(l~1.252,0)

In the above formula, w is the inertia weight of the output delay adjustment of the Co(OH)2 activated carbon composite electrode material, cı and cz are the acceleration constants, and the convergence state characteristic quantity of the preparation process control is obtained: min jvc - XO@OB| = “| ve Ya Sree | AT Bi = min is HX +] Through the above treatment, the target model of electrochemical regulation of Co(OH)2 activated carbon composite electrode material is realized, and the preparation and optimization design of Co(OH)2 activated carbon composite electrode material are realized.

3. Performance test analysis includes: In order to test the superior performance of the preparation method provided by the invention in the preparation of the realized Co(OH)2 activated carbon composite electrode material, the experimental performance test and analysis were carried out. 25yS-cm”, the distance between Co(OH)2 activated carbon composite electrodes is 3mm, the conductivity of the solution is measured every 5min, take 12 ml of simulated NaCl solution with a concentration of 250 mg-L" to analyze the electrochemical properties of the composite electrode material, and analyze the SEM images of the composite electrode material under different diffraction peak spectra, as shown in Fig. 2. By analyzing the spectrum of the composite electrode material shown in Fig. 2, it is shown that the preparation method provided by the present invention is used to prepare the output of the Co(OH)2 activated carbon composite electrode material, and the cyclic voltammetry performance of the electrode is tested and the test results obtained at&J502148 shown in Fig. 3.

Analysis of Fig. 3 shows that the output frequency range of the cyclic voltammetry characteristics of the Co(OH)2 activated carbon composite electrode is 100 to 1200 Hz, and the low-pass filtering performance is good. The salt removal efficiency of the electrode materials of different preparation methods is tested, and the comparison results are obtained as table 1 shown.

Analysis of Table 1 shows that the preparation method provided by the present invention has better control performance for the preparation of Co(OH)2 activated carbon composite electrode material, and the electrode material has higher desalination efficiency.

13.456 | 6.923 | 6.513 |

20.321 | 8.323 | 8.765 The invention will be further described below in combination with the effects. According to the invention, the preparation technology of the Co(OH)2 activated carbon composite electrode material is optimized, so that the output stability and electromagnetic coupling of the Co(OH)2 activated carbon composite electrode material are improved.

The invention provides a preparation method of the Co(OH) 2 activated carbon compositéJ502148 electrode material based on electrodeposition technology, and adopts an electro-adsorption performance test and analysis method to perform X-ray photoelectron spectroscopy analysis of the Co(OH)2 activated carbon composite electrode material. The metal oxide was introduced into the surface of the electrode, and the electro-adsorption of Co(OH)2 activated carbon electrode material was tested by impregnation calcination method. The cyclic voltammetric performance of the electrode was analyzed, and the area enclosed by the volt-ampere curve was integrated to obtain the electro-deposition amount of Co(OH)2 activated carbon composite electrode material. The number of activated carbon ion exchange fibers in the Co(OH)2 activated carbon composite electrode material is calculated by conductivity measurement, and the electrodeposition preparation of Co(OH)2 activated carbon composite electrode material can be realized according to the combination of various elements. The load performance and output volt-ampere characteristics of the prepared Co(OH)2 activated carbon composite electrode material were quantitatively analyzed, and the electrochemical performance of the composite electrode material was analyzed. The results show that the preparation method provided by the invention can effectively realize the preparation of Co(OH)2 activated carbon composite electrode materials.

The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

Claims LU502148

1. The preparation method of Co(OH)2 activated carbon composite electrode material based on electrodeposition technology is characterized in comprising the following steps: Step 1, carrying out X-ray photoelectron spectrum analysis of the Co(OH)2 activated carbon composite electrode material by adopting an electro-adsorption performance test and analysis method; Step 2, introducing metal oxide into the surface of the electrode, testing the electro-adsorption property of Co(OH)2 activated carbon electrode material by impregnation calcination method, and analyzing the cyclic voltammetry performance of the electrode; Step 3, the area enclosed by the volt-ampere curve is integrated to obtain the electrodeposition amount of the Co(OH)2 activated carbon composite electrode material; Step 4, calculating the number of activated carbon ion exchange fibers of the Co(OH)2 activated carbon composite electrode material measured by conductivity, and realizing the electrodeposition preparation of the Co(OH)2 activated carbon composite electrode material according to the combination of various elements.

2. The preparation method of Co(OH)2 activated carbon composite electrode material based on electrodeposition technology is characterized in that the load performance and output volt-ampere characteristics of the prepared Co(OH)2 activated carbon composite electrode material were quantitatively analyzed.

3. The preparation method of Co(OH)2 activated carbon composite electrode material based on electrodeposition technology is characterized in that in step 1, the electric adsorption performance test and analysis method specifically comprises the following steps: the metal oxide is introduced into the electrode surface, and the disturbance error in the preparation of Co(OH)2 activated carbon composite electrode material is expressed in the form of multiple inputs and single outputs, the electrochemical regulation error term E of Co(OH)2 activated carbon composite electrode material satisfies Gauss-Markov hypothesis by using single-point fuzzification, and theJ502148 nonlinear dynamic control driving matrix for the preparation of Co(OH)2 activated carbon composite electrode material is as follows: Y=XB+e; wherein, Y is the conduction vector of nx1 activated carbon fibers adhering to graphite, X is the nonlinear function vector matrix of nxm electrolyte, B is the mx1 activated carbon fiber parameter vector, and e is nx1 random error vector.

4. The preparation method of Co(OH)2 activated carbon composite electrode material based on electrodeposition technology is characterized in that in step 2, the electrosorption test of Co(OH)2 activated carbon electrode material by impregnation calcination method specifically includes: the metal oxide is introduced into the surface of the electrode, and the cyclic voltammetry curve is analyzed by the immersion calcination method, if < m, the approximate accuracy > of the X-ray test of the composite electrode material is expressed as: the linear error prediction of the electrode material is carried out in the NaCl solution with the electrolyte of 0.5mol-L*, the prediction error function is Z1=diag(di), i=1,2,....r, a three-electrode system is used for steady-state regulation, and the covariance matrix decomposition method is used to decompose U and V into what shown as below: U=[UT UE]. V=IV0 V2}; both UT and VT are à columns,

5. The preparation method of Co(OH)2 activated carbon composite electrode material based on electrodeposition technology is characterized in that in step 2, the cyclic voltammetry performance analysis methods of electrodes include: (1) the output volt-ampere characteristic curve prepared by the Co(OH)2 activated carbon composite electrode material was constructed, and the three-phase steady-state regulation model of the battery anode was established, and the electrode torque was calculated as:

d ss se SE : a - 5 © Ka Ex + fo *% ’ # U Ps i &, x ] “= ESS ; QB FASO NT + elf Re ony a wherein, a is the instantaneous span of the state vector, and the output stability analysis of the Co(OH)2 activated carbon composite electrode material is carried out. the output wm 2 - of the oxide fuel cell anode satisfies > ,,P(a,}=1; and the adjustment step size of the adaptive backstepping tracking is: «— min B,kc) [ks+ (1-ks) tanh (8 B-ke |) ] ; wherein, ks<1, © is the empirical value; (2) Calculate the stretching factors of the process adaptation law of the preparation of Co(OH) 2 activated carbon composite electrode materials, Lip , Lis and Lim , the state variables C, and Cs of the process control, and control the volt-ampere characteristics according to the frequency adjustment criterion, in order to obtain the operating frequency of the system: | { N - i ca Lo ve sec 38 43 20D AR sg SS KANN # AS F $ ét. ds i 1» i st ; ap, 0000000 on {} ID & x am Let Y1, Y2, ..., YN be a set of samples of Y, and the output voltammetric characteristic coefficient prepared by the Co(OH)2 activated carbon composite electrode material is set to be expressed as: HE rod wd Sand 4 S why cuss { ei § ge,

6. The preparation method of Co(OH)2 activated carbon composite electrode)502148 material based on electrodeposition technology is characterized in that in step 3, integrate the area enclosed by the voltammetry curve to obtain the electrodeposition amount of the Co(OH)2 activated carbon composite electrode material, which includes: integrate the area enclosed by the volt-ampere curve to obtain the control torque of electrodeposition as: Tou—Ten-(PwtPb/wr based on the electrodeposition technology, the error compensation is carried out, and the feedback tracking adjustment method is used to obtain the fuzzy parameter distribution of the Co(OH)2 activated carbon electrode material preparation, and the electrodeposition amount of the Co(OH)2 activated carbon composite electrode material is obtained.

7. The preparation method of Co(OH)2 activated carbon composite electrode material based on electrodeposition technology is characterized in that in step 4, the calculated electrical conductivity measures the number of activated carbon ion-exchange fibers of the Co(OH)2 activated carbon composite electrode material, and realizes the electrodeposition preparation of the Co(OH)2 activated carbon composite electrode material according to the combination of elements, which specifically includes: 1) the load performance and output voltammetry characteristics of the prepared Co(OH)2 activated carbon composite electrode material were quantitatively analyzed, and the optimal control objective function of electrodeposition preparation was obtained as follows: FUN sw, BE F(X we OX) FL TTD) € is a small constant to control the output current and voltage of the Co(OH)2 activated carbon composite electrode material. Gms) and ee fms represent the output power gain and time delay of the Co(OH)2 activated carbon composite electrode material, the measurement error fu(x) is defined as: FFs — TT dep”

0 is a large constant; LU502148 2) through the control design of the preparation process of the composite electrode material, assuming x(t), t=0,1,...,n-1 is the sampling training sequence of the control system, the error feedback compensation control output state equation is obtained: { TN dF Xs = I) dpe TN SOE SNe 3 i {. oe an ER ME we ¥ } + Se EE & oF Pe £5 {Æ > $5 ++ 7 ou | As mauti- 1235, in the above formula, w is the inertia weight of the output delay adjustment of the Co(OH)2 activated carbon composite electrode material, c1 and c2 are the acceleration constants, and the convergence state characteristic quantity of the preparation process control is obtained: | uf | RV fi ) Pan vera x à Us Ya XV. 5 | min YI NOW = mind . N =i YE + 1D ~ XE + DB

8. A Co{OH}Z activated carbon composite electrode material based on alectrodeposition technology prepared by the method for preparing a Co(DH)2 activated carbon composite electrode material based on elecirodenosition technology according to claim 1.

9. À battery prepared by using the Co(OH)2 activated carbon composite slectrods material based on slectrodeposition technology according to claim 8

10. À green and environmentally friendly motor vehicle equipped with the battery of claim 9.