從技術專利對蓄電池研發的認知
蓄(xu)(xu)電(dian)(dian)(dian)池(chi)是純電(dian)(dian)(dian)動汽(qi)(qi)車(che)(che)(che)的(de)(de)(de)唯一能源,它除了(le)供給(gei)汽(qi)(qi)車(che)(che)(che)驅(qu)動行駛(shi)所需電(dian)(dian)(dian)能外,也是汽(qi)(qi)車(che)(che)(che)上各種輔助裝置的(de)(de)(de)工作電(dian)(dian)(dian)源。蓄(xu)(xu)電(dian)(dian)(dian)池(chi)的(de)(de)(de)各項(xiang)性能指標(biao)很(hen)大程度(du)地決(jue)定了(le)汽(qi)(qi)車(che)(che)(che)的(de)(de)(de)行駛(shi)性能,如(ru)純電(dian)(dian)(dian)動汽(qi)(qi)車(che)(che)(che)的(de)(de)(de)續駛(shi)里程和加速或爬(pa)坡(po)動力性能等。因此(ci),世界各國均(jun)將電(dian)(dian)(dian)動汽(qi)(qi)車(che)(che)(che)電(dian)(dian)(dian)池(chi)視為研發重點,給(gei)予大力的(de)(de)(de)政策(ce)以(yi)及財政支持(chi)。
自1970年Propulsion Batteries Limited申(shen)請(qing)第一件純(chun)電(dian)動汽(qi)(qi)車(che)用蓄電(dian)池(chi)專(zhuan)利申(shen)請(qing)US3928080以(yi)來,幾乎每(mei)年都有(you)新專(zhuan)利申(shen)請(qing)被(bei)提交(jiao),尤(you)其在1991年后,有(you)關(guan)純(chun)電(dian)動汽(qi)(qi)車(che)用蓄電(dian)池(chi)的(de)專(zhuan)利申(shen)請(qing)相較(jiao)于之前(qian)成倍增長。
日(ri)(ri)本(ben):目前,日(ri)(ri)本(ben)純(chun)電(dian)(dian)動汽(qi)車(che)用蓄電(dian)(dian)池(chi)(chi)的(de)(de)研究主要(yao)集中(zhong)(zhong)在鋰電(dian)(dian)池(chi)(chi),其次為鉛酸電(dian)(dian)池(chi)(chi)、鎳氫電(dian)(dian)池(chi)(chi)和鈉電(dian)(dian)池(chi)(chi)等。從世界范圍內(nei)的(de)(de)專(zhuan)利(li)(li)申(shen)(shen)(shen)請(qing)(qing)的(de)(de)總量(liang)來看,日(ri)(ri)本(ben)擁有的(de)(de)純(chun)電(dian)(dian)動汽(qi)車(che)用蓄電(dian)(dian)池(chi)(chi)及其管(guan)(guan)理(li)(li)(li)系統相關專(zhuan)利(li)(li)申(shen)(shen)(shen)請(qing)(qing)數量(liang)最(zui)多。從日(ri)(ri)本(ben)國(guo)內(nei)的(de)(de)專(zhuan)利(li)(li)申(shen)(shen)(shen)請(qing)(qing)量(liang)來看,在和純(chun)電(dian)(dian)動汽(qi)車(che)用蓄電(dian)(dian)池(chi)(chi)及其管(guan)(guan)理(li)(li)(li)系統有關的(de)(de)6782件專(zhuan)利(li)(li)申(shen)(shen)(shen)請(qing)(qing)中(zhong)(zhong),其中(zhong)(zhong)超過(guo)90%的(de)(de)專(zhuan)利(li)(li)申(shen)(shen)(shen)請(qing)(qing)來自日(ri)(ri)本(ben)申(shen)(shen)(shen)請(qing)(qing)人(ren)(ren)。無論(lun)是從世界專(zhuan)利(li)(li)申(shen)(shen)(shen)請(qing)(qing)的(de)(de)擁有量(liang)角度(du),還是從日(ri)(ri)本(ben)專(zhuan)利(li)(li)申(shen)(shen)(shen)請(qing)(qing)中(zhong)(zhong)日(ri)(ri)本(ben)申(shen)(shen)(shen)請(qing)(qing)人(ren)(ren)所占(zhan)的(de)(de)份額角度(du),日(ri)(ri)本(ben)在純(chun)電(dian)(dian)動汽(qi)車(che)用蓄電(dian)(dian)池(chi)(chi)及其管(guan)(guan)理(li)(li)(li)系統領域都是實(shi)力(li)最(zui)強(qiang)者,掌控著絕大(da)部分專(zhuan)利(li)(li)技術。
美國:作為世界上最大的汽車生產和消費國,美國較早開展了電動汽車技術研究和開發。目前,美國純電動汽車用蓄電池的研究主要集中在鋰電池,鋰電池相(xiang)關(guan)專(zhuan)利(li)(li)數(shu)量(liang)(liang)(liang)(liang)占動力電(dian)池(chi)專(zhuan)利(li)(li)數(shu)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)70%以上(shang),其次為鉛酸電(dian)池(chi)、鎳氫電(dian)池(chi)、空氣電(dian)池(chi)和(he)鈉電(dian)池(chi)等。從世界范圍內的(de)(de)(de)(de)專(zhuan)利(li)(li)申(shen)請的(de)(de)(de)(de)總量(liang)(liang)(liang)(liang)來(lai)看,截(jie)至2010年6月,美(mei)國(guo)的(de)(de)(de)(de)純(chun)電(dian)動汽車用蓄電(dian)池(chi)及其管理系(xi)統(tong)相(xiang)關(guan)專(zhuan)利(li)(li)申(shen)請數(shu)量(liang)(liang)(liang)(liang)位于日本之后,排(pai)名第二。從美(mei)國(guo)國(guo)內的(de)(de)(de)(de)專(zhuan)利(li)(li)申(shen)請量(liang)(liang)(liang)(liang)來(lai)看,在和(he)純(chun)電(dian)動汽車用蓄電(dian)池(chi)及其管理系(xi)統(tong)有(you)關(guan)的(de)(de)(de)(de)專(zhuan)利(li)(li)申(shen)請中,來(lai)自(zi)日本申(shen)請人的(de)(de)(de)(de)專(zhuan)利(li)(li)最多,接(jie)近總量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)60%,而(er)來(lai)自(zi)美(mei)國(guo)申(shen)請人的(de)(de)(de)(de)專(zhuan)利(li)(li)申(shen)請數(shu)量(liang)(liang)(liang)(liang)次于日本。
德國:目前,德國純(chun)電(dian)(dian)(dian)(dian)動(dong)汽(qi)車用(yong)蓄(xu)(xu)電(dian)(dian)(dian)(dian)池(chi)的(de)(de)研(yan)究主要集中(zhong)在(zai)(zai)鋰電(dian)(dian)(dian)(dian)池(chi),其(qi)次(ci)為鉛酸電(dian)(dian)(dian)(dian)池(chi)、鎳氫電(dian)(dian)(dian)(dian)池(chi)、鈉電(dian)(dian)(dian)(dian)池(chi)和空氣電(dian)(dian)(dian)(dian)池(chi)等(deng)。從(cong)世(shi)界范(fan)圍內的(de)(de)專(zhuan)利申(shen)(shen)請(qing)的(de)(de)總(zong)量(liang)(liang)來看,截至2010年6月,德國的(de)(de)純(chun)電(dian)(dian)(dian)(dian)動(dong)汽(qi)車用(yong)蓄(xu)(xu)電(dian)(dian)(dian)(dian)池(chi)及其(qi)管理系統相關專(zhuan)利申(shen)(shen)請(qing)數(shu)量(liang)(liang)居(ju)世(shi)界排(pai)名(ming)(ming)第6位,與排(pai)名(ming)(ming)首位的(de)(de)日(ri)本(ben)專(zhuan)利數(shu)量(liang)(liang)相差很大(da),僅占日(ri)本(ben)申(shen)(shen)請(qing)量(liang)(liang)的(de)(de)11%。從(cong)德國國內的(de)(de)專(zhuan)利申(shen)(shen)請(qing)量(liang)(liang)來看,德國申(shen)(shen)請(qing)人(ren)持有(you)的(de)(de)專(zhuan)利約占總(zong)量(liang)(liang)的(de)(de)43%,高于排(pai)名(ming)(ming)第二的(de)(de)日(ri)本(ben)。在(zai)(zai)全球范(fan)圍來看,德國在(zai)(zai)純(chun)電(dian)(dian)(dian)(dian)動(dong)汽(qi)車用(yong)蓄(xu)(xu)電(dian)(dian)(dian)(dian)池(chi)及其(qi)管理系統領(ling)域的(de)(de)技(ji)術實力遠不及日(ri)本(ben),但(dan)是在(zai)(zai)本(ben)國范(fan)圍內,德國擁有(you)較(jiao)強的(de)(de)技(ji)術優勢,專(zhuan)利擁有(you)量(liang)(liang)高于日(ri)本(ben)。
韓(han)國(guo)(guo)(guo)(guo):當前韓(han)國(guo)(guo)(guo)(guo)汽(qi)車產量和(he)出口量分別(bie)名(ming)(ming)列全(quan)球第(di)五位(wei)和(he)第(di)四位(wei)。韓(han)國(guo)(guo)(guo)(guo)純(chun)電(dian)(dian)動汽(qi)車用蓄電(dian)(dian)池的(de)研究主要集中在(zai)(zai)鋰電(dian)(dian)池,其(qi)(qi)專(zhuan)利(li)申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)量遠(yuan)(yuan)遠(yuan)(yuan)高于(yu)鎳氫電(dian)(dian)池、鉛(qian)酸電(dian)(dian)池和(he)鈉電(dian)(dian)池。從世界范(fan)圍內的(de)專(zhuan)利(li)申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)的(de)總量來看,韓(han)國(guo)(guo)(guo)(guo)純(chun)電(dian)(dian)動汽(qi)車用蓄電(dian)(dian)池及(ji)其(qi)(qi)管理系(xi)統(tong)相關(guan)專(zhuan)利(li)申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)數量在(zai)(zai)日本(ben)、美國(guo)(guo)(guo)(guo)、中國(guo)(guo)(guo)(guo)和(he)歐洲之后。從韓(han)國(guo)(guo)(guo)(guo)國(guo)(guo)(guo)(guo)內的(de)專(zhuan)利(li)申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)量來看,在(zai)(zai)和(he)純(chun)電(dian)(dian)動汽(qi)車用蓄電(dian)(dian)池及(ji)其(qi)(qi)管理系(xi)統(tong)有(you)關(guan)的(de)專(zhuan)利(li)申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)中,申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)量最多的(de)專(zhuan)利(li)申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)來自韓(han)國(guo)(guo)(guo)(guo)本(ben)國(guo)(guo)(guo)(guo)的(de)申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)人(ren),日本(ben)申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)人(ren)排名(ming)(ming)第(di)二,申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)量僅次于(yu)韓(han)國(guo)(guo)(guo)(guo)。這(zhe)兩個國(guo)(guo)(guo)(guo)家在(zai)(zai)蓄電(dian)(dian)池及(ji)其(qi)(qi)管理系(xi)統(tong)領域的(de)韓(han)國(guo)(guo)(guo)(guo)專(zhuan)利(li)申(shen)(shen)(shen)(shen)(shen)請(qing)(qing)(qing)量遠(yuan)(yuan)遠(yuan)(yuan)高于(yu)排名(ming)(ming)第(di)三的(de)美國(guo)(guo)(guo)(guo)及(ji)其(qi)(qi)他國(guo)(guo)(guo)(guo)家。
中國:我國圍繞提高單體電池的電性能、安全性能和壽命等綜合技術指標進行了大量的研究攻關,目前高功率鎳氫電池、鋰離子電池性能有了較(jiao)大提(ti)高。從(cong)世界范圍內(nei)(nei)專(zhuan)(zhuan)利(li)(li)申請(qing)的(de)總(zong)量(liang)來(lai)看(kan),中國在(zai)純(chun)電(dian)(dian)動(dong)(dong)汽車(che)用(yong)蓄(xu)電(dian)(dian)池(chi)及其(qi)管(guan)理系統(tong)領(ling)(ling)域(yu)的(de)專(zhuan)(zhuan)利(li)(li)申請(qing)數(shu)量(liang)僅次(ci)于日本(ben)(ben)和美(mei)(mei)國,排名(ming)第(di)三。從(cong)中國國內(nei)(nei)的(de)專(zhuan)(zhuan)利(li)(li)申請(qing)量(liang)來(lai)看(kan),日本(ben)(ben)在(zai)我國擁(yong)有的(de)專(zhuan)(zhuan)利(li)(li)申請(qing)數(shu)量(liang)最多,松下、豐田、三洋等知名(ming)日本(ben)(ben)企業在(zai)中國擁(yong)有數(shu)量(liang)較(jiao)多的(de)高質量(liang)的(de)專(zhuan)(zhuan)利(li)(li)。我國國內(nei)(nei)企業中,比亞迪(002594,股吧)汽車(che)在(zai)電(dian)(dian)動(dong)(dong)汽車(che)電(dian)(dian)池(chi)技術領(ling)(ling)域(yu)的(de)研發實力較(jiao)為突出,主要(yao)以鋰離子電(dian)(dian)池(chi)和聚合物鋰離子電(dian)(dian)池(chi)為研究重(zhong)點,對(dui)電(dian)(dian)池(chi)結構及制(zhi)造方法十(shi)分重(zhong)視。比亞迪汽車(che)早在(zai)2003年(nian)就申請(qing)了第(di)一件純(chun)電(dian)(dian)動(dong)(dong)汽車(che)用(yong)蓄(xu)電(dian)(dian)池(chi)及其(qi)管(guan)理系統(tong)的(de)中國專(zhuan)(zhuan)利(li)(li),2003年(nian)開始在(zai)純(chun)電(dian)(dian)動(dong)(dong)汽車(che)用(yong)蓄(xu)電(dian)(dian)池(chi)及其(qi)管(guan)理系統(tong)方面進行(xing)海(hai)外市場(chang)專(zhuan)(zhuan)利(li)(li)布局,第(di)一條海(hai)外申請(qing)的(de)專(zhuan)(zhuan)利(li)(li)是(shi)在(zai)美(mei)(mei)國。
在未來(lai)幾年的(de)時間里,在電(dian)動(dong)汽(qi)(qi)車(che)(che)領(ling)域的(de)知識產權競爭(zheng)中(zhong),日本將走在美(mei)國(guo)(guo)、歐洲和其他國(guo)(guo)家的(de)前列。但由于電(dian)動(dong)汽(qi)(qi)車(che)(che)產業(ye)(ye)正(zheng)處(chu)于快(kuai)速成(cheng)長期,許多關鍵技術尚(shang)未出現成(cheng)熟的(de)解決方案,美(mei)國(guo)(guo)和歐洲依托其強大的(de)基礎研究優勢(shi),極有可能(neng)在某些關鍵技術上(shang)率先取得突破性(xing)進展,重(zhong)新獲得競爭(zheng)優勢(shi)。加之韓國(guo)(guo)和中(zhong)國(guo)(guo)等汽(qi)(qi)車(che)(che)產業(ye)(ye)的(de)后起之秀不斷加大電(dian)動(dong)汽(qi)(qi)車(che)(che)的(de)研發投入,可以預料未來(lai)電(dian)動(dong)汽(qi)(qi)車(che)(che)的(de)競爭(zheng)格局(ju)將更加復雜。
