<p class="MsoNormal" style="margin: 15.6pt 0cm; line-height: 150%; text-align: center; mso-para-margin-top: 1.0gd; mso-para-margin-right: 0cm; mso-para-margin-bottom: 1.0gd; mso-para-margin-left: 0cm;" align="center"><strong style="mso-bidi-font-weight: normal;"><span style="font-size: 16pt; line-height: 150%; font-family: 楷體_GB2312; mso-bidi-font-family: Arial;">鈦摻雜對鈷酸鋰正較材料性能的影響</span></strong><strong style="mso-bidi-font-weight: normal;"><span style="font-size: 16pt; line-height: 150%; font-family: 楷體_GB2312; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial;" lang="EN-US"></span></strong></p> <p class="MsoNormal" style="margin: 15.6pt 0cm; line-height: 150%; mso-para-margin-top: 1.0gd; mso-para-margin-right: 0cm; mso-para-margin-bottom: 1.0gd; mso-para-margin-left: 0cm;"><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US"><br /><span style="font-size: small;">LiCoO₂ </span></span><span style="font-size: small;"><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">是商品化鋰離子電池較早使用的正較材料，因其具有易于合成，電壓平臺高，比能量適中，循環(huán)性能好等優(yōu)點，仍為鋰離子電池的主流正較材料。但由于其結(jié)構(gòu)固有的特點，</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">LiCoO2</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">在生產(chǎn)加工過程中，很容易被氧化，從而使其容量急速衰退，存在過充安全隱患。在</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">LiCoO2</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">正較材料中慘雜納米二氧化鈦（</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">VK-TA18</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">），可以有效的阻止</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">LiCoO2</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">的氧化，從而提高其容量及循環(huán)穩(wěn)定性</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">,</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">特別是循環(huán)時放電電壓平臺的穩(wěn)定性，可有效提高電池在多次充放電過程中的電化學穩(wěn)定性和熱穩(wěn)定性，電池在使用過程中更穩(wěn)定、更耐用。</span></span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US"><br /><br /></span><span style="font-size: small;"><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">（</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">1</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">）</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;"> </span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">在</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">LiCoO2 </span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">表面摻雜電化學性能相對穩(wěn)定的納米二氧化鈦（</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">VK-TA18</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">）后，降低了</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">LiCoO₂</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">表面氧的活性，減少了其與電解液的接觸面積，舒緩了</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">LiCoO₂</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">中</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">Co</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">在電解液中的溶解，避免電池容量的衰退，增加鋰電池的穩(wěn)定性；</span></span><span style="font-size: small;"><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US"> <br /></span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">（</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">2</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">）在鈷酸鋰表面，適量的納米二氧化鈦（</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">VK-TA18</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">）可以疏松狀存在，降低了粒子間應力及循環(huán)過程中所造成的結(jié)構(gòu)和體積的微小應變，增加電池的穩(wěn)定性。</span></span><span style="font-size: small;"><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US"> <br /></span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">（</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">3</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">）納米二氧化鈦（</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">VK-TA18</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">）摻雜降低了</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">LiCoO₂</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">在充放電過程中的較化，使材料具有更高的放電電壓及更平穩(wěn)的放電效果。</span></span><span style="font-size: small;"><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US"> <br /></span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">（</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">4</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">）納米二氧化鈦（</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">VK-TA18</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">）摻雜到鈷酸鋰中，可以有效舒緩</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US">LiCoO2</span><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">在充放電循環(huán)過程中的電化學阻抗的增加，有利于降低電池的容量衰減，提高高溫循環(huán)性能，提高電池的電化學性能。</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;"> <span lang="EN-US"></span></span></span></p> <p class="MsoNormal" style="margin: 15.6pt 0cm; line-height: 150%; mso-para-margin-top: 1.0gd; mso-para-margin-right: 0cm; mso-para-margin-bottom: 1.0gd; mso-para-margin-left: 0cm;"><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US"><br /></span><span style="font-size: small;"><span style="line-height: 150%; font-family: 宋體; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: Arial;">李小姐</span><span style="line-height: 150%; font-family: Arial; mso-bidi-font-size: 10.5pt;" lang="EN-US"><span style="mso-spacerun: yes;">  </span>0571-89969052</span></span><span style="font-size: 10pt; line-height: 150%; font-family: 宋體; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">杭州萬景新材料有限公司</span><span style="font-size: 10pt; line-height: 150%;" lang="EN-US"><span style="mso-spacerun: yes;">   </span></span></p> <p class="MsoNormal" style="margin: 15.6pt 0cm; line-height: 150%; mso-para-margin-top: 1.0gd; mso-para-margin-right: 0cm; mso-para-margin-bottom: 1.0gd; mso-para-margin-left: 0cm;"><span style="font-size: 10pt; line-height: 150%; font-family: 宋體; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">網(wǎng)址：</span><span style="font-size: 10pt; line-height: 150%;" lang="EN-US"><a href="http://www.veking.cn/">www.veking.cn</a></span></p> <p class="MsoNormal" style="margin: 15.6pt 0cm; line-height: 150%; mso-para-margin-top: 1.0gd; mso-para-margin-right: 0cm; mso-para-margin-bottom: 1.0gd; mso-para-margin-left: 0cm;"><span style="font-size: 10pt; line-height: 150%;" lang="EN-US"> </span></p>